[DEV] add v1.66.0

This commit is contained in:
2018-01-12 21:47:58 +01:00
parent 87059bb1af
commit a97e9ae7d4
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project lambda/doc ;
import boostbook : boostbook ;
# Are these really the correct images??
path-constant images : ../../spirit/phoenix/doc/html ;
boostbook lambda-doc : lambda.xml
:
<xsl:param>boost.root=../../../..
<format>pdf:<xsl:param>img.src.path=$(images)/
;
###############################################################################
alias boostdoc
: lambda.xml
:
:
: ;
explicit boostdoc ;
alias boostrelease ;
explicit boostrelease ;

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- lambda_doc.xml is a DocBook xml file from which the lambda docs are
generated
- lambda_doc_chunks.xsl loads the stylesheets that generate a separate
html-file for each section
- lambda_doc.xsl loads stylesheets that generate one big html-file
(you need to edit the paths in these files to make them work)

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<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version='1.0'
xmlns="http://www.w3.org/TR/xhtml1/transitional"
exclude-result-prefixes="#default">
<xsl:import href="/u/jajarvi/dtd/docbook-xsl/html/docbook.xsl"/>
<!-- Add other variable definitions here -->
<xsl:variable name="shade.verbatim">0</xsl:variable>
<xsl:variable name="section.autolabel">1</xsl:variable>
<xsl:variable name="bibliography.collection">lambda_bib.xml</xsl:variable>
</xsl:stylesheet>

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<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version='1.0'
xmlns="http://www.w3.org/TR/xhtml1/transitional"
exclude-result-prefixes="#default">
<xsl:import href="/u/jajarvi/dtd/docbook-xsl/html/chunk.xsl"/>
<!-- Add other variable definitions here -->
<xsl:variable name="shade.verbatim">0</xsl:variable>
<xsl:variable name="section.autolabel">1</xsl:variable>
<xsl:variable name="bibliography.collection">lambda_bib.xml</xsl:variable>
</xsl:stylesheet>

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<html>
<head>
<meta http-equiv="refresh" content="0; URL=../../../doc/html/lambda.html">
</head>
<body>
Automatic redirection failed, please go to <a href="../../../doc/html/lambda.html">www.boost.org/doc/html/lambda.html</a>&nbsp;<hr>
<p><EFBFBD> Copyright Beman Dawes, 2001</p>
<p>Distributed under the Boost Software License, Version 1.0. (See accompanying
file <a href="../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or copy
at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</p>
</body>
</html>

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libs/lambda/index.html Normal file
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<html>
<head>
<meta http-equiv="refresh" content="0; URL=../../doc/html/lambda.html">
</head>
<body>
Automatic redirection failed, please go to <a href="../../doc/html/lambda.html">www.boost.org/doc/html/lambda.html</a>&nbsp;<hr>
<p><EFBFBD> Copyright Beman Dawes, 2001</p>
<p>Distributed under the Boost Software License, Version 1.0. (See accompanying
file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or copy
at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</p>
</body>
</html>

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{
"key": "lambda",
"name": "Lambda",
"authors": [
"Jaakko Järvi",
"Gary Powell"
],
"description": "Define small unnamed function objects at the actual call site, and more.",
"category": [
"Function-objects"
],
"maintainers": [
"Jaakko Jarvi <jarvi -at- cs.tamu.edu>"
]
}

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libs/lambda/test/Jamfile Normal file
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# Lambda library
# Copyright (C) 2001-2003 Jaakko J<>rvi
# Use, modification and distribution is subject to the Boost Software License,
# Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
# For more information, see http://www.boost.org/
import testing ;
project
: requirements <toolset>msvc:<asynch-exceptions>on
;
test-suite lambda
: [ run algorithm_test.cpp ]
[ run bind_tests_simple.cpp ]
[ run bind_tests_advanced.cpp ]
[ run bind_tests_simple_f_refs.cpp ]
[ run bll_and_function.cpp ]
[ run cast_test.cpp : : : : lambda_cast_test ]
[ run constructor_tests.cpp ]
[ run control_structures.cpp ]
[ run exception_test.cpp ]
[ run extending_rt_traits.cpp ]
[ run is_instance_of_test.cpp ]
[ run member_pointer_test.cpp ]
[ run operator_tests_simple.cpp ]
[ run phoenix_control_structures.cpp ]
[ run switch_construct.cpp ]
[ run result_of_tests.cpp ]
[ run ret_test.cpp ]
;

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libs/lambda/test/Makefile Normal file
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BOOST = ../../..
CXX = g++
EXTRAFLAGS = -pedantic -Wno-long-long -Wno-long-double -ftemplate-depth-50
LIBS = -lstdc++
#CXX = KCC
#EXTRAFLAGS = --strict --display_error_number --diag_suppress 450 --max_pending_instantiations 50
#LIBS =
INCLUDES = -I$(BOOST)
CXXFLAGS = $(INCLUDES) $(EXTRAFLAGS)
LIBFLAGS = $(LIBS)
AR = ar
.SUFFIXES: .cpp .o
SOURCES = \
is_instance_of_test.cpp \
operator_tests_simple.cpp \
member_pointer_test.cpp \
control_structures.cpp \
switch_construct.cpp \
bind_tests_simple.cpp \
bind_tests_advanced.cpp \
bll_and_function.cpp \
constructor_tests.cpp \
extending_rt_traits.cpp \
bind_tests_simple_f_refs.cpp \
cast_test.cpp \
phoenix_control_structures.cpp \
exception_test.cpp \
# Create lists of object files from the source file lists.
OBJECTS = ${SOURCES:.cpp=.o}
TARGETS = ${SOURCES:.cpp=.exe}
all: $(TARGETS)
%.exe: %.o
$(CXX) $(LIBFLAGS) $(CXXFLAGS) -o $@ $<
%.o: %.cpp
$(CXX) $(CXXFLAGS) -o $@ -c $<
%.dep: %.cpp
set -e; $(CXX) -M $(INCLUDES) -c $< \
| sed 's/\($*\)\.o[ :]*/\1.o $@ : /g' > $@; \
[ -s $@ ] || rm -f $@
DEP_FILES = $(SOURCES:.cpp=.dep)
include $(DEP_FILES)
clean:
/bin/rm -rf $(TARGETS) $(OBJECTS) $(DEP_FILES)
run:
./is_instance_of_test.exe
./member_pointer_test.exe
./operator_tests_simple.exe
./control_structures.exe
./switch_construct.exe
./extending_rt_traits.exe
./constructor_tests.exe
./cast_test.exe
./bind_tests_simple.exe
./bind_tests_advanced.exe
./bll_and_function.exe
./bind_tests_simple_f_refs.exe
./phoenix_control_structures.exe
./exception_test.exe

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gcc 2.96
cannot compile
exception_test.cpp (internal compiler error)

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// bll_and_function.cpp - The Boost Lambda Library -----------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// test using BLL and boost::function
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/bind.hpp"
#include "boost/lambda/algorithm.hpp"
#include <vector>
#include <map>
#include <set>
#include <string>
#include <iostream>
void test_foreach() {
using namespace boost::lambda;
int a[10][20];
int sum = 0;
std::for_each(a, a + 10,
bind(ll::for_each(), _1, _1 + 20,
protect((_1 = var(sum), ++var(sum)))));
sum = 0;
std::for_each(a, a + 10,
bind(ll::for_each(), _1, _1 + 20,
protect((sum += _1))));
BOOST_CHECK(sum == (199 + 1)/ 2 * 199);
}
// More tests needed (for all algorithms)
int test_main(int, char *[]) {
test_foreach();
return 0;
}

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// bind_tests_advanced.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
// Copyright (C) 2010 Steven Watanabe
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/bind.hpp"
#include "boost/any.hpp"
#include "boost/type_traits/is_reference.hpp"
#include "boost/mpl/assert.hpp"
#include "boost/mpl/if.hpp"
#include <iostream>
#include <functional>
#include <algorithm>
using namespace boost::lambda;
namespace bl = boost::lambda;
int sum_0() { return 0; }
int sum_1(int a) { return a; }
int sum_2(int a, int b) { return a+b; }
int product_2(int a, int b) { return a*b; }
// unary function that returns a pointer to a binary function
typedef int (*fptr_type)(int, int);
fptr_type sum_or_product(bool x) {
return x ? sum_2 : product_2;
}
// a nullary functor that returns a pointer to a unary function that
// returns a pointer to a binary function.
struct which_one {
typedef fptr_type (*result_type)(bool x);
template <class T> struct sig { typedef result_type type; };
result_type operator()() const { return sum_or_product; }
};
void test_nested_binds()
{
int j = 2; int k = 3;
// bind calls can be nested (the target function can be a lambda functor)
// The interpretation is, that the innermost lambda functor returns something
// that is bindable (another lambda functor, function pointer ...)
bool condition;
condition = true;
BOOST_CHECK(bind(bind(&sum_or_product, _1), 1, 2)(condition)==3);
BOOST_CHECK(bind(bind(&sum_or_product, _1), _2, _3)(condition, j, k)==5);
condition = false;
BOOST_CHECK(bind(bind(&sum_or_product, _1), 1, 2)(condition)==2);
BOOST_CHECK(bind(bind(&sum_or_product, _1), _2, _3)(condition, j, k)==6);
which_one wo;
BOOST_CHECK(bind(bind(bind(wo), _1), _2, _3)(condition, j, k)==6);
return;
}
// unlambda -------------------------------------------------
// Sometimes it may be necessary to prevent the argument substitution of
// taking place. For example, we may end up with a nested bind expression
// inadvertently when using the target function is received as a parameter
template<class F>
int call_with_100(const F& f) {
// bind(f, _1)(make_const(100));
// This would result in;
// bind(_1 + 1, _1)(make_const(100)) , which would be a compile time error
return bl::bind(unlambda(f), _1)(make_const(100));
// for other functors than lambda functors, unlambda has no effect
// (except for making them const)
}
template<class F>
int call_with_101(const F& f) {
return bind(unlambda(f), _1)(make_const(101));
}
void test_unlambda() {
int i = 1;
BOOST_CHECK(unlambda(_1 + _2)(i, i) == 2);
BOOST_CHECK(unlambda(++var(i))() == 2);
BOOST_CHECK(call_with_100(_1 + 1) == 101);
BOOST_CHECK(call_with_101(_1 + 1) == 102);
#if defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
BOOST_CHECK(call_with_100(bl::bind(std_functor(std::bind1st(std::plus<int>(), 1)), _1)) == 101);
#else
BOOST_CHECK(call_with_100(bl::bind(std_functor(std::bind(std::plus<int>(), 1, std::placeholders::_1)), _1)) == 101);
#endif
// std_functor insturcts LL that the functor defines a result_type typedef
// rather than a sig template.
bl::bind(std_functor(std::plus<int>()), _1, _2)(i, i);
}
// protect ------------------------------------------------------------
// protect protects a lambda functor from argument substitution.
// protect is useful e.g. with nested stl algorithm calls.
namespace ll {
struct for_each {
// note, std::for_each returns it's last argument
// We want the same behaviour from our ll::for_each.
// However, the functor can be called with any arguments, and
// the return type thus depends on the argument types.
// 1. Provide a sig class member template:
// The return type deduction system instantiate this class as:
// sig<Args>::type, where Args is a boost::tuples::cons-list
// The head type is the function object type itself
// cv-qualified (so it is possilbe to provide different return types
// for differently cv-qualified operator()'s.
// The tail type is the list of the types of the actual arguments the
// function was called with.
// So sig should contain a typedef type, which defines a mapping from
// the operator() arguments to its return type.
// Note, that it is possible to provide different sigs for the same functor
// if the functor has several operator()'s, even if they have different
// number of arguments.
// Note, that the argument types in Args are guaranteed to be non-reference
// types, but they can have cv-qualifiers.
template <class Args>
struct sig {
typedef typename boost::remove_const<
typename boost::tuples::element<3, Args>::type
>::type type;
};
template <class A, class B, class C>
C
operator()(const A& a, const B& b, const C& c) const
{ return std::for_each(a, b, c);}
};
} // end of ll namespace
void test_protect()
{
int i = 0;
int b[3][5];
int* a[3];
for(int j=0; j<3; ++j) a[j] = b[j];
std::for_each(a, a+3,
bind(ll::for_each(), _1, _1 + 5, protect(_1 = ++var(i))));
// This is how you could output the values (it is uncommented, no output
// from a regression test file):
// std::for_each(a, a+3,
// bind(ll::for_each(), _1, _1 + 5,
// std::cout << constant("\nLine ") << (&_1 - a) << " : "
// << protect(_1)
// )
// );
int sum = 0;
std::for_each(a, a+3,
bind(ll::for_each(), _1, _1 + 5,
protect(sum += _1))
);
BOOST_CHECK(sum == (1+15)*15/2);
sum = 0;
std::for_each(a, a+3,
bind(ll::for_each(), _1, _1 + 5,
sum += 1 + protect(_1)) // add element count
);
BOOST_CHECK(sum == (1+15)*15/2 + 15);
(1 + protect(_1))(sum);
int k = 0;
((k += constant(1)) += protect(constant(2)))();
BOOST_CHECK(k==1);
k = 0;
((k += constant(1)) += protect(constant(2)))()();
BOOST_CHECK(k==3);
// note, the following doesn't work:
// ((var(k) = constant(1)) = protect(constant(2)))();
// (var(k) = constant(1))() returns int& and thus the
// second assignment fails.
// We should have something like:
// bind(var, var(k) = constant(1)) = protect(constant(2)))();
// But currently var is not bindable.
// The same goes with ret. A bindable ret could be handy sometimes as well
// (protect(std::cout << _1), std::cout << _1)(i)(j); does not work
// because the comma operator tries to store the result of the evaluation
// of std::cout << _1 as a copy (and you can't copy std::ostream).
// something like this:
// (protect(std::cout << _1), bind(ref, std::cout << _1))(i)(j);
// the stuff below works, but we do not want extra output to
// cout, must be changed to stringstreams but stringstreams do not
// work due to a bug in the type deduction. Will be fixed...
#if 0
// But for now, ref is not bindable. There are other ways around this:
int x = 1, y = 2;
(protect(std::cout << _1), (std::cout << _1, 0))(x)(y);
// added one dummy value to make the argument to comma an int
// instead of ostream&
// Note, the same problem is more apparent without protect
// (std::cout << 1, std::cout << constant(2))(); // does not work
(boost::ref(std::cout << 1), std::cout << constant(2))(); // this does
#endif
}
void test_lambda_functors_as_arguments_to_lambda_functors() {
// lambda functor is a function object, and can therefore be used
// as an argument to another lambda functors function call object.
// Note however, that the argument/type substitution is not entered again.
// This means, that something like this will not work:
(_1 + _2)(_1, make_const(7));
(_1 + _2)(bind(&sum_0), make_const(7));
// or it does work, but the effect is not to call
// sum_0() + 7, but rather
// bind(sum_0) + 7, which results in another lambda functor
// (lambda functor + int) and can be called again
BOOST_CHECK((_1 + _2)(bind(&sum_0), make_const(7))() == 7);
int i = 3, j = 12;
BOOST_CHECK((_1 - _2)(_2, _1)(i, j) == j - i);
// also, note that lambda functor are no special case for bind if received
// as a parameter. In oder to be bindable, the functor must
// defint the sig template, or then
// the return type must be defined within the bind call. Lambda functors
// do define the sig template, so if the return type deduction system
// covers the case, there is no need to specify the return type
// explicitly.
int a = 5, b = 6;
// Let type deduction find out the return type
BOOST_CHECK(bind(_1, _2, _3)(unlambda(_1 + _2), a, b) == 11);
//specify it yourself:
BOOST_CHECK(bind(_1, _2, _3)(ret<int>(_1 + _2), a, b) == 11);
BOOST_CHECK(ret<int>(bind(_1, _2, _3))(_1 + _2, a, b) == 11);
BOOST_CHECK(bind<int>(_1, _2, _3)(_1 + _2, a, b) == 11);
bind(_1,1.0)(_1+_1);
return;
}
void test_const_parameters() {
// (_1 + _2)(1, 2); // this would fail,
// Either make arguments const:
BOOST_CHECK((_1 + _2)(make_const(1), make_const(2)) == 3);
// Or use const_parameters:
BOOST_CHECK(const_parameters(_1 + _2)(1, 2) == 3);
}
void test_rvalue_arguments()
{
// Not quite working yet.
// Problems with visual 7.1
// BOOST_CHECK((_1 + _2)(1, 2) == 3);
}
void test_break_const()
{
// break_const is currently unnecessary, as LL supports perfect forwarding
// for up to there argument lambda functors, and LL does not support
// lambda functors with more than 3 args.
// I'll keep the test case around anyway, if more arguments will be supported
// in the future.
// break_const breaks constness! Be careful!
// You need this only if you need to have side effects on some argument(s)
// and some arguments are non-const rvalues and your lambda functors
// take more than 3 arguments.
int i = 1;
// OLD COMMENT: (_1 += _2)(i, 2) // fails, 2 is a non-const rvalue
// OLD COMMENT: const_parameters(_1 += _2)(i, 2) // fails, side-effect to i
break_const(_1 += _2)(i, 2); // ok
BOOST_CHECK(i == 3);
}
template<class T>
struct func {
template<class Args>
struct sig {
typedef typename boost::tuples::element<1, Args>::type arg1;
// If the argument type is not the same as the expected type,
// return void, which will cause an error. Note that we
// can't just assert that the types are the same, because
// both const and non-const versions can be instantiated
// even though only one is ultimately used.
typedef typename boost::mpl::if_<boost::is_same<arg1, T>,
typename boost::remove_const<arg1>::type,
void
>::type type;
};
template<class U>
U operator()(const U& arg) const {
return arg;
}
};
void test_sig()
{
int i = 1;
BOOST_CHECK(bind(func<int>(), 1)() == 1);
BOOST_CHECK(bind(func<const int>(), _1)(static_cast<const int&>(i)) == 1);
BOOST_CHECK(bind(func<int>(), _1)(i) == 1);
}
class base {
public:
virtual int foo() = 0;
};
class derived : public base {
public:
virtual int foo() {
return 1;
}
};
void test_abstract()
{
derived d;
base& b = d;
BOOST_CHECK(bind(&base::foo, var(b))() == 1);
BOOST_CHECK(bind(&base::foo, *_1)(&b) == 1);
}
int test_main(int, char *[]) {
test_nested_binds();
test_unlambda();
test_protect();
test_lambda_functors_as_arguments_to_lambda_functors();
test_const_parameters();
test_rvalue_arguments();
test_break_const();
test_sig();
test_abstract();
return 0;
}

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// bind_tests_simple.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/bind.hpp"
#include <iostream>
using namespace boost::lambda;
int sum_of_args_0() { return 0; }
int sum_of_args_1(int a) { return a; }
int sum_of_args_2(int a, int b) { return a+b; }
int sum_of_args_3(int a, int b, int c) { return a+b+c; }
int sum_of_args_4(int a, int b, int c, int d) { return a+b+c+d; }
int sum_of_args_5(int a, int b, int c, int d, int e) { return a+b+c+d+e; }
int sum_of_args_6(int a, int b, int c, int d, int e, int f) { return a+b+c+d+e+f; }
int sum_of_args_7(int a, int b, int c, int d, int e, int f, int g) { return a+b+c+d+e+f+g; }
int sum_of_args_8(int a, int b, int c, int d, int e, int f, int g, int h) { return a+b+c+d+e+f+g+h; }
int sum_of_args_9(int a, int b, int c, int d, int e, int f, int g, int h, int i) { return a+b+c+d+e+f+g+h+i; }
// ----------------------------
class A {
int i;
public:
A(int n) : i(n) {};
int add(const int& j) { return i + j; }
int add2(int a1, int a2) { return i + a1 + a2; }
int add3(int a1, int a2, int a3) { return i + a1 + a2 + a3; }
int add4(int a1, int a2, int a3, int a4) { return i + a1 + a2 + a3 + a4; }
int add5(int a1, int a2, int a3, int a4, int a5)
{ return i + a1 + a2 + a3 + a4 + a5; }
int add6(int a1, int a2, int a3, int a4, int a5, int a6)
{ return i + a1 + a2 + a3 + a4 + a5 + a6; }
int add7(int a1, int a2, int a3, int a4, int a5, int a6, int a7)
{ return i + a1 + a2 + a3 + a4 + a5 + a6 + a7; }
int add8(int a1, int a2, int a3, int a4, int a5, int a6, int a7, int a8)
{ return i + a1 + a2 + a3 + a4 + a5 + a6 + a7 + a8; }
};
void test_member_functions()
{
using boost::ref;
A a(10);
int i = 1;
BOOST_CHECK(bind(&A::add, ref(a), _1)(i) == 11);
BOOST_CHECK(bind(&A::add, &a, _1)(i) == 11);
BOOST_CHECK(bind(&A::add, _1, 1)(a) == 11);
BOOST_CHECK(bind(&A::add, _1, 1)(make_const(&a)) == 11);
BOOST_CHECK(bind(&A::add2, _1, 1, 1)(a) == 12);
BOOST_CHECK(bind(&A::add3, _1, 1, 1, 1)(a) == 13);
BOOST_CHECK(bind(&A::add4, _1, 1, 1, 1, 1)(a) == 14);
BOOST_CHECK(bind(&A::add5, _1, 1, 1, 1, 1, 1)(a) == 15);
BOOST_CHECK(bind(&A::add6, _1, 1, 1, 1, 1, 1, 1)(a) == 16);
BOOST_CHECK(bind(&A::add7, _1, 1, 1, 1, 1, 1, 1, 1)(a) == 17);
BOOST_CHECK(bind(&A::add8, _1, 1, 1, 1, 1, 1, 1, 1, 1)(a) == 18);
// This should fail, as lambda functors store arguments as const
// bind(&A::add, a, _1);
}
struct B {
B(int n) : i(n) {};
int i;
};
void test_data_members()
{
using boost::ref;
B b(10);
BOOST_CHECK(bind(&B::i, ref(b))() == 10);
BOOST_CHECK(bind(&B::i, b)() == 10);
BOOST_CHECK(bind(&B::i, _1)(b) == 10);
BOOST_CHECK(bind(&B::i, _1)(B(11)) == 11);
bind(&B::i, ref(b))() = 1;
BOOST_CHECK(b.i == 1);
}
int test_main(int, char *[]) {
int i = 1; int j = 2; int k = 3;
int result;
// bind all parameters
BOOST_CHECK(bind(&sum_of_args_0)()==0);
BOOST_CHECK(bind(&sum_of_args_1, 1)()==1);
BOOST_CHECK(bind(&sum_of_args_2, 1, 2)()==3);
BOOST_CHECK(bind(&sum_of_args_3, 1, 2, 3)()==6);
BOOST_CHECK(bind(&sum_of_args_4, 1, 2, 3, 4)()==10);
BOOST_CHECK(bind(&sum_of_args_5, 1, 2, 3, 4, 5)()==15);
BOOST_CHECK(bind(&sum_of_args_6, 1, 2, 3, 4, 5, 6)()==21);
BOOST_CHECK(bind(&sum_of_args_7, 1, 2, 3, 4, 5, 6, 7)()==28);
BOOST_CHECK(bind(&sum_of_args_8, 1, 2, 3, 4, 5, 6, 7, 8)()==36);
BOOST_CHECK(bind(&sum_of_args_9, 1, 2, 3, 4, 5, 6, 7, 8, 9)()==45);
// first parameter open
BOOST_CHECK(bind(&sum_of_args_0)()==0);
BOOST_CHECK(bind(&sum_of_args_1, _1)(i)==1);
BOOST_CHECK(bind(&sum_of_args_2, _1, 2)(i)==3);
BOOST_CHECK(bind(&sum_of_args_3, _1, 2, 3)(i)==6);
BOOST_CHECK(bind(&sum_of_args_4, _1, 2, 3, 4)(i)==10);
BOOST_CHECK(bind(&sum_of_args_5, _1, 2, 3, 4, 5)(i)==15);
BOOST_CHECK(bind(&sum_of_args_6, _1, 2, 3, 4, 5, 6)(i)==21);
BOOST_CHECK(bind(&sum_of_args_7, _1, 2, 3, 4, 5, 6, 7)(i)==28);
BOOST_CHECK(bind(&sum_of_args_8, _1, 2, 3, 4, 5, 6, 7, 8)(i)==36);
BOOST_CHECK(bind(&sum_of_args_9, _1, 2, 3, 4, 5, 6, 7, 8, 9)(i)==45);
// two open arguments
BOOST_CHECK(bind(&sum_of_args_0)()==0);
BOOST_CHECK(bind(&sum_of_args_1, _1)(i)==1);
BOOST_CHECK(bind(&sum_of_args_2, _1, _2)(i, j)==3);
BOOST_CHECK(bind(&sum_of_args_3, _1, _2, 3)(i, j)==6);
BOOST_CHECK(bind(&sum_of_args_4, _1, _2, 3, 4)(i, j)==10);
BOOST_CHECK(bind(&sum_of_args_5, _1, _2, 3, 4, 5)(i, j)==15);
BOOST_CHECK(bind(&sum_of_args_6, _1, _2, 3, 4, 5, 6)(i, j)==21);
BOOST_CHECK(bind(&sum_of_args_7, _1, _2, 3, 4, 5, 6, 7)(i, j)==28);
BOOST_CHECK(bind(&sum_of_args_8, _1, _2, 3, 4, 5, 6, 7, 8)(i, j)==36);
BOOST_CHECK(bind(&sum_of_args_9, _1, _2, 3, 4, 5, 6, 7, 8, 9)(i, j)==45);
// three open arguments
BOOST_CHECK(bind(&sum_of_args_0)()==0);
BOOST_CHECK(bind(&sum_of_args_1, _1)(i)==1);
BOOST_CHECK(bind(&sum_of_args_2, _1, _2)(i, j)==3);
BOOST_CHECK(bind(&sum_of_args_3, _1, _2, _3)(i, j, k)==6);
BOOST_CHECK(bind(&sum_of_args_4, _1, _2, _3, 4)(i, j, k)==10);
BOOST_CHECK(bind(&sum_of_args_5, _1, _2, _3, 4, 5)(i, j, k)==15);
BOOST_CHECK(bind(&sum_of_args_6, _1, _2, _3, 4, 5, 6)(i, j, k)==21);
BOOST_CHECK(bind(&sum_of_args_7, _1, _2, _3, 4, 5, 6, 7)(i, j, k)==28);
BOOST_CHECK(bind(&sum_of_args_8, _1, _2, _3, 4, 5, 6, 7, 8)(i, j, k)==36);
BOOST_CHECK(bind(&sum_of_args_9, _1, _2, _3, 4, 5, 6, 7, 8, 9)(i, j, k)==45);
// function compositions with bind
BOOST_CHECK(bind(&sum_of_args_3, bind(&sum_of_args_2, _1, 2), 2, 3)(i)==8);
BOOST_CHECK(
bind(&sum_of_args_9,
bind(&sum_of_args_0), // 0
bind(&sum_of_args_1, _1), // 1
bind(&sum_of_args_2, _1, _2), // 3
bind(&sum_of_args_3, _1, _2, _3), // 6
bind(&sum_of_args_4, _1, _2, _3, 4), // 10
bind(&sum_of_args_5, _1, _2, _3, 4, 5), // 15
bind(&sum_of_args_6, _1, _2, _3, 4, 5, 6), // 21
bind(&sum_of_args_7, _1, _2, _3, 4, 5, 6, 7), // 28
bind(&sum_of_args_8, _1, _2, _3, 4, 5, 6, 7, 8) // 36
)(i, j, k) == 120);
// deeper nesting
result =
bind(&sum_of_args_1, // 12
bind(&sum_of_args_4, // 12
bind(&sum_of_args_2, // 3
bind(&sum_of_args_1, // 1
bind(&sum_of_args_1, _1) // 1
),
_2),
_2,
_3,
4)
)(i, j, k);
BOOST_CHECK(result == 12);
test_member_functions();
return 0;
}

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// bind_tests_simple.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/bind.hpp"
#include <iostream>
using namespace boost::lambda;
int sum_of_args_0() { return 0; }
int sum_of_args_1(int a) { return a; }
int sum_of_args_2(int a, int b) { return a+b; }
int sum_of_args_3(int a, int b, int c) { return a+b+c; }
int sum_of_args_4(int a, int b, int c, int d) { return a+b+c+d; }
int sum_of_args_5(int a, int b, int c, int d, int e) { return a+b+c+d+e; }
int sum_of_args_6(int a, int b, int c, int d, int e, int f) { return a+b+c+d+e+f; }
int sum_of_args_7(int a, int b, int c, int d, int e, int f, int g) { return a+b+c+d+e+f+g; }
int sum_of_args_8(int a, int b, int c, int d, int e, int f, int g, int h) { return a+b+c+d+e+f+g+h; }
int sum_of_args_9(int a, int b, int c, int d, int e, int f, int g, int h, int i) { return a+b+c+d+e+f+g+h+i; }
// ----------------------------
class A {
int i;
public:
A(int n) : i(n) {};
int add(const int& j) { return i + j; }
};
void test_member_functions()
{
using boost::ref;
A a(10);
int i = 1;
BOOST_CHECK(bind(&A::add, ref(a), _1)(i) == 11);
BOOST_CHECK(bind(&A::add, &a, _1)(i) == 11);
BOOST_CHECK(bind(&A::add, _1, 1)(a) == 11);
BOOST_CHECK(bind(&A::add, _1, 1)(make_const(&a)) == 11);
// This should fail, as lambda functors store arguments as const
// bind(&A::add, a, _1);
}
int test_main(int, char *[]) {
int i = 1; int j = 2; int k = 3;
int result;
// bind all parameters
BOOST_CHECK(bind(sum_of_args_0)()==0);
BOOST_CHECK(bind(sum_of_args_1, 1)()==1);
BOOST_CHECK(bind(sum_of_args_2, 1, 2)()==3);
BOOST_CHECK(bind(sum_of_args_3, 1, 2, 3)()==6);
BOOST_CHECK(bind(sum_of_args_4, 1, 2, 3, 4)()==10);
BOOST_CHECK(bind(sum_of_args_5, 1, 2, 3, 4, 5)()==15);
BOOST_CHECK(bind(sum_of_args_6, 1, 2, 3, 4, 5, 6)()==21);
BOOST_CHECK(bind(sum_of_args_7, 1, 2, 3, 4, 5, 6, 7)()==28);
BOOST_CHECK(bind(sum_of_args_8, 1, 2, 3, 4, 5, 6, 7, 8)()==36);
BOOST_CHECK(bind(sum_of_args_9, 1, 2, 3, 4, 5, 6, 7, 8, 9)()==45);
// first parameter open
BOOST_CHECK(bind(sum_of_args_0)()==0);
BOOST_CHECK(bind(sum_of_args_1, _1)(i)==1);
BOOST_CHECK(bind(sum_of_args_2, _1, 2)(i)==3);
BOOST_CHECK(bind(sum_of_args_3, _1, 2, 3)(i)==6);
BOOST_CHECK(bind(sum_of_args_4, _1, 2, 3, 4)(i)==10);
BOOST_CHECK(bind(sum_of_args_5, _1, 2, 3, 4, 5)(i)==15);
BOOST_CHECK(bind(sum_of_args_6, _1, 2, 3, 4, 5, 6)(i)==21);
BOOST_CHECK(bind(sum_of_args_7, _1, 2, 3, 4, 5, 6, 7)(i)==28);
BOOST_CHECK(bind(sum_of_args_8, _1, 2, 3, 4, 5, 6, 7, 8)(i)==36);
BOOST_CHECK(bind(sum_of_args_9, _1, 2, 3, 4, 5, 6, 7, 8, 9)(i)==45);
// two open arguments
BOOST_CHECK(bind(sum_of_args_0)()==0);
BOOST_CHECK(bind(sum_of_args_1, _1)(i)==1);
BOOST_CHECK(bind(sum_of_args_2, _1, _2)(i, j)==3);
BOOST_CHECK(bind(sum_of_args_3, _1, _2, 3)(i, j)==6);
BOOST_CHECK(bind(sum_of_args_4, _1, _2, 3, 4)(i, j)==10);
BOOST_CHECK(bind(sum_of_args_5, _1, _2, 3, 4, 5)(i, j)==15);
BOOST_CHECK(bind(sum_of_args_6, _1, _2, 3, 4, 5, 6)(i, j)==21);
BOOST_CHECK(bind(sum_of_args_7, _1, _2, 3, 4, 5, 6, 7)(i, j)==28);
BOOST_CHECK(bind(sum_of_args_8, _1, _2, 3, 4, 5, 6, 7, 8)(i, j)==36);
BOOST_CHECK(bind(sum_of_args_9, _1, _2, 3, 4, 5, 6, 7, 8, 9)(i, j)==45);
// three open arguments
BOOST_CHECK(bind(sum_of_args_0)()==0);
BOOST_CHECK(bind(sum_of_args_1, _1)(i)==1);
BOOST_CHECK(bind(sum_of_args_2, _1, _2)(i, j)==3);
BOOST_CHECK(bind(sum_of_args_3, _1, _2, _3)(i, j, k)==6);
BOOST_CHECK(bind(sum_of_args_4, _1, _2, _3, 4)(i, j, k)==10);
BOOST_CHECK(bind(sum_of_args_5, _1, _2, _3, 4, 5)(i, j, k)==15);
BOOST_CHECK(bind(sum_of_args_6, _1, _2, _3, 4, 5, 6)(i, j, k)==21);
BOOST_CHECK(bind(sum_of_args_7, _1, _2, _3, 4, 5, 6, 7)(i, j, k)==28);
BOOST_CHECK(bind(sum_of_args_8, _1, _2, _3, 4, 5, 6, 7, 8)(i, j, k)==36);
BOOST_CHECK(bind(sum_of_args_9, _1, _2, _3, 4, 5, 6, 7, 8, 9)(i, j, k)==45);
// function compositions with bind
BOOST_CHECK(bind(sum_of_args_3, bind(sum_of_args_2, _1, 2), 2, 3)(i)==8);
BOOST_CHECK(
bind(sum_of_args_9,
bind(sum_of_args_0), // 0
bind(sum_of_args_1, _1), // 1
bind(sum_of_args_2, _1, _2), // 3
bind(sum_of_args_3, _1, _2, _3), // 6
bind(sum_of_args_4, _1, _2, _3, 4), // 10
bind(sum_of_args_5, _1, _2, _3, 4, 5), // 15
bind(sum_of_args_6, _1, _2, _3, 4, 5, 6), // 21
bind(sum_of_args_7, _1, _2, _3, 4, 5, 6, 7), // 28
bind(sum_of_args_8, _1, _2, _3, 4, 5, 6, 7, 8) // 36
)(i, j, k) == 120);
// deeper nesting
result =
bind(sum_of_args_1, // 12
bind(sum_of_args_4, // 12
bind(sum_of_args_2, // 3
bind(sum_of_args_1, // 1
bind(sum_of_args_1, _1) // 1
),
_2),
_2,
_3,
4)
)(i, j, k);
BOOST_CHECK(result == 12);
test_member_functions();
return 0;
}

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// bll_and_function.cpp - The Boost Lambda Library -----------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// test using BLL and boost::function
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/function.hpp"
#include <vector>
#include <map>
#include <set>
#include <string>
using namespace boost::lambda;
using namespace std;
void test_function() {
boost::function<int (int, int)> f;
f = _1 + _2;
BOOST_CHECK(f(1, 2)== 3);
int i=1; int j=2;
boost::function<int& (int&, int)> g = _1 += _2;
g(i, j);
BOOST_CHECK(i==3);
int* sum = new int();
*sum = 0;
boost::function<int& (int)> counter = *sum += _1;
counter(5); // ok, sum* = 5;
BOOST_CHECK(*sum == 5);
delete sum;
// The next statement would lead to a dangling reference
// counter(3); // error, *sum does not exist anymore
}
int test_main(int, char *[]) {
test_function();
return 0;
}

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// cast_tests.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/casts.hpp"
#include <string>
using namespace boost::lambda;
using namespace std;
class base {
int x;
public:
virtual std::string class_name() const { return "const base"; }
virtual std::string class_name() { return "base"; }
virtual ~base() {}
};
class derived : public base {
int y[100];
public:
virtual std::string class_name() const { return "const derived"; }
virtual std::string class_name() { return "derived"; }
};
void do_test() {
derived *p_derived = new derived;
base *p_base = new base;
base *b = 0;
derived *d = 0;
(var(b) = ll_static_cast<base *>(p_derived))();
(var(d) = ll_static_cast<derived *>(b))();
BOOST_CHECK(b->class_name() == "derived");
BOOST_CHECK(d->class_name() == "derived");
(var(b) = ll_dynamic_cast<derived *>(b))();
BOOST_CHECK(b != 0);
BOOST_CHECK(b->class_name() == "derived");
(var(d) = ll_dynamic_cast<derived *>(p_base))();
BOOST_CHECK(d == 0);
const derived* p_const_derived = p_derived;
BOOST_CHECK(p_const_derived->class_name() == "const derived");
(var(d) = ll_const_cast<derived *>(p_const_derived))();
BOOST_CHECK(d->class_name() == "derived");
int i = 10;
char* cp = reinterpret_cast<char*>(&i);
int* ip;
(var(ip) = ll_reinterpret_cast<int *>(cp))();
BOOST_CHECK(*ip == 10);
// typeid
BOOST_CHECK(string(ll_typeid(d)().name()) == string(typeid(d).name()));
// sizeof
BOOST_CHECK(ll_sizeof(_1)(p_derived) == sizeof(p_derived));
BOOST_CHECK(ll_sizeof(_1)(*p_derived) == sizeof(*p_derived));
BOOST_CHECK(ll_sizeof(_1)(p_base) == sizeof(p_base));
BOOST_CHECK(ll_sizeof(_1)(*p_base) == sizeof(*p_base));
int an_array[100];
BOOST_CHECK(ll_sizeof(_1)(an_array) == 100 * sizeof(int));
delete p_derived;
delete p_base;
}
int test_main(int, char *[]) {
do_test();
return 0;
}

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// constructor_tests.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/bind.hpp"
#include "boost/lambda/construct.hpp"
#include <iostream>
#include <algorithm>
#include <vector>
#ifdef BOOST_MSVC
#pragma warning(disable:4512)
#endif
using namespace boost::lambda;
namespace bl = boost::lambda;
template<class T>
bool check_tuple(int n, const T& t)
{
return (t.get_head() == n) && check_tuple(n+1, t.get_tail());
}
template <>
bool check_tuple(int /*n*/, const null_type& ) { return true; }
void constructor_all_lengths()
{
bool ok;
ok = check_tuple(
1,
bind(constructor<tuple<int> >(),
1)()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
bind(constructor<tuple<int, int> >(),
1, 2)()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
bind(constructor<tuple<int, int, int> >(),
1, 2, 3)()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
bind(constructor<tuple<int, int, int, int> >(),
1, 2, 3, 4)()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
bind(constructor<tuple<int, int, int, int, int> >(),
1, 2, 3, 4, 5)()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
bind(constructor<tuple<int, int, int, int, int, int> >(),
1, 2, 3, 4, 5, 6)()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
bind(constructor<tuple<int, int, int, int, int, int, int> >(),
1, 2, 3, 4, 5, 6, 7)()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
bind(constructor<tuple<int, int, int, int, int, int, int, int> >(),
1, 2, 3, 4, 5, 6, 7, 8)()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
bind(constructor<tuple<int, int, int, int, int, int, int, int, int> >(),
1, 2, 3, 4, 5, 6, 7, 8, 9)()
);
BOOST_CHECK(ok);
}
void new_ptr_all_lengths()
{
bool ok;
ok = check_tuple(
1,
*(bind(new_ptr<tuple<int> >(),
1))()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
*(bind(new_ptr<tuple<int, int> >(),
1, 2))()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
*(bind(new_ptr<tuple<int, int, int> >(),
1, 2, 3))()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
*(bind(new_ptr<tuple<int, int, int, int> >(),
1, 2, 3, 4))()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
*(bind(new_ptr<tuple<int, int, int, int, int> >(),
1, 2, 3, 4, 5))()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
*(bind(new_ptr<tuple<int, int, int, int, int, int> >(),
1, 2, 3, 4, 5, 6))()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
*(bind(new_ptr<tuple<int, int, int, int, int, int, int> >(),
1, 2, 3, 4, 5, 6, 7))()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
*(bind(new_ptr<tuple<int, int, int, int, int, int, int, int> >(),
1, 2, 3, 4, 5, 6, 7, 8))()
);
BOOST_CHECK(ok);
ok = check_tuple(
1,
*(bind(new_ptr<tuple<int, int, int, int, int, int, int, int, int> >(),
1, 2, 3, 4, 5, 6, 7, 8, 9))()
);
BOOST_CHECK(ok);
}
class is_destructor_called {
bool& b;
public:
is_destructor_called(bool& bb) : b(bb) { b = false; }
~is_destructor_called() { b = true; }
};
void test_destructor ()
{
char space[sizeof(is_destructor_called)];
bool flag = false;
is_destructor_called* idc = new(space) is_destructor_called(flag);
BOOST_CHECK(flag == false);
bind(destructor(), _1)(idc);
BOOST_CHECK(flag == true);
idc = new(space) is_destructor_called(flag);
BOOST_CHECK(flag == false);
bind(destructor(), _1)(*idc);
BOOST_CHECK(flag == true);
}
class count_deletes {
public:
static int count;
~count_deletes() { ++count; }
};
int count_deletes::count = 0;
void test_news_and_deletes ()
{
int* i[10];
std::for_each(i, i+10, _1 = bind(new_ptr<int>(), 2));
int count_errors = 0;
std::for_each(i, i+10, (*_1 == 2) || ++var(count_errors));
BOOST_CHECK(count_errors == 0);
count_deletes* ct[10];
std::for_each(ct, ct+10, _1 = bind(new_ptr<count_deletes>()));
count_deletes::count = 0;
std::for_each(ct, ct+10, bind(delete_ptr(), _1));
BOOST_CHECK(count_deletes::count == 10);
}
void test_array_new_and_delete()
{
count_deletes* c;
(_1 = bind(new_array<count_deletes>(), 5))(c);
count_deletes::count = 0;
bind(delete_array(), _1)(c);
BOOST_CHECK(count_deletes::count == 5);
}
void delayed_construction()
{
std::vector<int> x(3);
std::vector<int> y(3);
std::fill(x.begin(), x.end(), 0);
std::fill(y.begin(), y.end(), 1);
std::vector<std::pair<int, int> > v;
std::transform(x.begin(), x.end(), y.begin(), std::back_inserter(v),
bl::bind(constructor<std::pair<int, int> >(), _1, _2) );
}
int test_main(int, char *[]) {
constructor_all_lengths();
new_ptr_all_lengths();
delayed_construction();
test_destructor();
test_news_and_deletes();
test_array_new_and_delete();
return 0;
}

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// -- control_structures.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/if.hpp"
#include "boost/lambda/loops.hpp"
#include <iostream>
#include <algorithm>
#include <vector>
using namespace boost;
using boost::lambda::constant;
using boost::lambda::_1;
using boost::lambda::_2;
using boost::lambda::_3;
using boost::lambda::make_const;
using boost::lambda::for_loop;
using boost::lambda::while_loop;
using boost::lambda::do_while_loop;
using boost::lambda::if_then;
using boost::lambda::if_then_else;
using boost::lambda::if_then_else_return;
// 2 container for_each
template <class InputIter1, class InputIter2, class Function>
Function for_each(InputIter1 first, InputIter1 last,
InputIter2 first2, Function f) {
for ( ; first != last; ++first, ++first2)
f(*first, *first2);
return f;
}
void simple_loops() {
// for loops ---------------------------------------------------------
int i;
int arithmetic_series = 0;
for_loop(_1 = 0, _1 < 10, _1++, arithmetic_series += _1)(i);
BOOST_CHECK(arithmetic_series == 45);
// no body case
for_loop(boost::lambda::var(i) = 0, boost::lambda::var(i) < 100, ++boost::lambda::var(i))();
BOOST_CHECK(i == 100);
// while loops -------------------------------------------------------
int a = 0, b = 0, c = 0;
while_loop((_1 + _2) >= (_1 * _2), (++_1, ++_2, ++_3))(a, b, c);
BOOST_CHECK(c == 3);
int count;
count = 0; i = 0;
while_loop(_1++ < 10, ++boost::lambda::var(count))(i);
BOOST_CHECK(count == 10);
// note that the first parameter of do_while_loop is the condition
count = 0; i = 0;
do_while_loop(_1++ < 10, ++boost::lambda::var(count))(i);
BOOST_CHECK(count == 11);
a = 0;
do_while_loop(constant(false), _1++)(a);
BOOST_CHECK(a == 1);
// no body cases
a = 40; b = 30;
while_loop(--_1 > _2)(a, b);
BOOST_CHECK(a == b);
// (the no body case for do_while_loop is pretty redundant)
a = 40; b = 30;
do_while_loop(--_1 > _2)(a, b);
BOOST_CHECK(a == b);
}
void simple_ifs () {
int value = 42;
if_then(_1 < 0, _1 = 0)(value);
BOOST_CHECK(value == 42);
value = -42;
if_then(_1 < 0, _1 = -_1)(value);
BOOST_CHECK(value == 42);
int min;
if_then_else(_1 < _2, boost::lambda::var(min) = _1, boost::lambda::var(min) = _2)
(make_const(1), make_const(2));
BOOST_CHECK(min == 1);
if_then_else(_1 < _2, boost::lambda::var(min) = _1, boost::lambda::var(min) = _2)
(make_const(5), make_const(3));
BOOST_CHECK(min == 3);
int x, y;
x = -1; y = 1;
BOOST_CHECK(if_then_else_return(_1 < _2, _2, _1)(x, y) == (std::max)(x ,y));
BOOST_CHECK(if_then_else_return(_1 < _2, _2, _1)(y, x) == (std::max)(x ,y));
}
int test_main(int, char *[])
{
simple_loops();
simple_ifs();
return 0;
}

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@@ -0,0 +1,621 @@
// -- exception_test.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/exceptions.hpp"
#include "boost/lambda/bind.hpp"
#include<iostream>
#include<algorithm>
#include <cstdlib>
#include <iostream>
using namespace boost::lambda;
using namespace std;
// to prevent unused variables warnings
template <class T> void dummy(const T&) {}
void erroneous_exception_related_lambda_expressions() {
int i = 0;
dummy(i);
// Uncommenting any of the below code lines should result in a compile
// time error
// this should fail (a rethrow binder outside of catch
// rethrow()();
// this should fail too for the same reason
// try_catch(rethrow(), catch_all(cout << constant("Howdy")))();
// this fails too (_e outside of catch_exception)
// (_1 + _2 + _e)(i, i, i);
// and this (_e outside of catch_exception)
// try_catch( throw_exception(1), catch_all(cout << _e));
// and this (_3 in catch_exception
// try_catch( throw_exception(1), catch_exception<int>(cout << _3));
}
class A1 {};
class A2 {};
class A3 {};
class A4 {};
class A5 {};
class A6 {};
class A7 {};
class A8 {};
class A9 {};
void throw_AX(int j) {
int i = j;
switch(i) {
case 1: throw A1();
case 2: throw A2();
case 3: throw A3();
case 4: throw A4();
case 5: throw A5();
case 6: throw A6();
case 7: throw A7();
case 8: throw A8();
case 9: throw A9();
}
}
void test_different_number_of_catch_blocks() {
int ecount;
// no catch(...) cases
ecount = 0;
for(int i=1; i<=1; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 1);
ecount = 0;
for(int i=1; i<=2; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 2);
ecount = 0;
for(int i=1; i<=3; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 3);
ecount = 0;
for(int i=1; i<=4; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 4);
ecount = 0;
for(int i=1; i<=5; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
),
catch_exception<A5>(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 5);
ecount = 0;
for(int i=1; i<=6; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
),
catch_exception<A5>(
var(ecount)++
),
catch_exception<A6>(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 6);
ecount = 0;
for(int i=1; i<=7; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
),
catch_exception<A5>(
var(ecount)++
),
catch_exception<A6>(
var(ecount)++
),
catch_exception<A7>(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 7);
ecount = 0;
for(int i=1; i<=8; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
),
catch_exception<A5>(
var(ecount)++
),
catch_exception<A6>(
var(ecount)++
),
catch_exception<A7>(
var(ecount)++
),
catch_exception<A8>(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 8);
ecount = 0;
for(int i=1; i<=9; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
),
catch_exception<A5>(
var(ecount)++
),
catch_exception<A6>(
var(ecount)++
),
catch_exception<A7>(
var(ecount)++
),
catch_exception<A8>(
var(ecount)++
),
catch_exception<A9>(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 9);
// with catch(...) blocks
ecount = 0;
for(int i=1; i<=1; i++)
{
try_catch(
bind(throw_AX, _1),
catch_all(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 1);
ecount = 0;
for(int i=1; i<=2; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_all(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 2);
ecount = 0;
for(int i=1; i<=3; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_all(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 3);
ecount = 0;
for(int i=1; i<=4; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_all(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 4);
ecount = 0;
for(int i=1; i<=5; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
),
catch_all(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 5);
ecount = 0;
for(int i=1; i<=6; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
),
catch_exception<A5>(
var(ecount)++
),
catch_all(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 6);
ecount = 0;
for(int i=1; i<=7; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
),
catch_exception<A5>(
var(ecount)++
),
catch_exception<A6>(
var(ecount)++
),
catch_all(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 7);
ecount = 0;
for(int i=1; i<=8; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
),
catch_exception<A5>(
var(ecount)++
),
catch_exception<A6>(
var(ecount)++
),
catch_exception<A7>(
var(ecount)++
),
catch_all(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 8);
ecount = 0;
for(int i=1; i<=9; i++)
{
try_catch(
bind(throw_AX, _1),
catch_exception<A1>(
var(ecount)++
),
catch_exception<A2>(
var(ecount)++
),
catch_exception<A3>(
var(ecount)++
),
catch_exception<A4>(
var(ecount)++
),
catch_exception<A5>(
var(ecount)++
),
catch_exception<A6>(
var(ecount)++
),
catch_exception<A7>(
var(ecount)++
),
catch_exception<A8>(
var(ecount)++
),
catch_all(
var(ecount)++
)
)(i);
}
BOOST_CHECK(ecount == 9);
}
void test_empty_catch_blocks() {
try_catch(
bind(throw_AX, _1),
catch_exception<A1>()
)(make_const(1));
try_catch(
bind(throw_AX, _1),
catch_all()
)(make_const(1));
}
void return_type_matching() {
// Rules for return types of the lambda functors in try and catch parts:
// 1. The try part dictates the return type of the whole
// try_catch lambda functor
// 2. If return type of try part is void, catch parts can return anything,
// but the return types are ignored
// 3. If the return type of the try part is A, then each catch return type
// must be implicitly convertible to A, or then it must throw for sure
int i = 1;
BOOST_CHECK(
try_catch(
_1 + 1,
catch_exception<int>((&_1, rethrow())), // no match, but ok since throws
catch_exception<char>(_e) // ok, char convertible to int
)(i)
== 2
);
// note that while e.g. char is convertible to int, it is not convertible
// to int&, (some lambda functors return references)
// try_catch(
// _1 += 1,
// catch_exception<char>(_e) // NOT ok, char not convertible to int&
// )(i);
// if you don't care about the return type, you can use make_void
try_catch(
make_void(_1 += 1),
catch_exception<char>(_e) // since try is void, catch can return anything
)(i);
BOOST_CHECK(i == 2);
try_catch(
(_1 += 1, throw_exception('a')),
catch_exception<char>(_e) // since try throws, it is void,
// so catch can return anything
)(i);
BOOST_CHECK(i == 3);
char a = 'a';
try_catch(
try_catch(
throw_exception(1),
catch_exception<int>(throw_exception('b'))
),
catch_exception<char>( _1 = _e )
)(a);
BOOST_CHECK(a == 'b');
}
int test_main(int, char *[]) {
try
{
test_different_number_of_catch_blocks();
return_type_matching();
test_empty_catch_blocks();
}
catch (int)
{
BOOST_CHECK(false);
}
catch(...)
{
BOOST_CHECK(false);
}
return EXIT_SUCCESS;
}

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@@ -0,0 +1,394 @@
// extending_return_type_traits.cpp -- The Boost Lambda Library --------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/bind.hpp"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/detail/suppress_unused.hpp"
#include <iostream>
#include <functional>
#include <algorithm>
using boost::lambda::detail::suppress_unused_variable_warnings;
class A {};
class B {};
using namespace boost::lambda;
B operator--(const A&, int) { return B(); }
B operator--(A&) { return B(); }
B operator++(const A&, int) { return B(); }
B operator++(A&) { return B(); }
B operator-(const A&) { return B(); }
B operator+(const A&) { return B(); }
B operator!(const A&) { return B(); }
B operator&(const A&) { return B(); }
B operator*(const A&) { return B(); }
namespace boost {
namespace lambda {
// unary + and -
template<class Act>
struct plain_return_type_1<unary_arithmetic_action<Act>, A > {
typedef B type;
};
// post incr/decr
template<class Act>
struct plain_return_type_1<post_increment_decrement_action<Act>, A > {
typedef B type;
};
// pre incr/decr
template<class Act>
struct plain_return_type_1<pre_increment_decrement_action<Act>, A > {
typedef B type;
};
// !
template<>
struct plain_return_type_1<logical_action<not_action>, A> {
typedef B type;
};
// &
template<>
struct plain_return_type_1<other_action<addressof_action>, A> {
typedef B type;
};
// *
template<>
struct plain_return_type_1<other_action<contentsof_action>, A> {
typedef B type;
};
} // lambda
} // boost
void ok(B /*b*/) {}
void test_unary_operators()
{
A a; int i = 1;
ok((++_1)(a));
ok((--_1)(a));
ok((_1++)(a));
ok((_1--)(a));
ok((+_1)(a));
ok((-_1)(a));
ok((!_1)(a));
ok((&_1)(a));
ok((*_1)(a));
BOOST_CHECK((*_1)(make_const(&i)) == 1);
}
class X {};
class Y {};
class Z {};
Z operator+(const X&, const Y&) { return Z(); }
Z operator-(const X&, const Y&) { return Z(); }
X operator*(const X&, const Y&) { return X(); }
Z operator/(const X&, const Y&) { return Z(); }
Z operator%(const X&, const Y&) { return Z(); }
class XX {};
class YY {};
class ZZ {};
class VV {};
// it is possible to support differently cv-qualified versions
YY operator*(XX&, YY&) { return YY(); }
ZZ operator*(const XX&, const YY&) { return ZZ(); }
XX operator*(volatile XX&, volatile YY&) { return XX(); }
VV operator*(const volatile XX&, const volatile YY&) { return VV(); }
// the traits can be more complex:
template <class T>
class my_vector {};
template<class A, class B>
my_vector<typename return_type_2<arithmetic_action<plus_action>, A&, B&>::type>
operator+(const my_vector<A>& /*a*/, const my_vector<B>& /*b*/)
{
typedef typename
return_type_2<arithmetic_action<plus_action>, A&, B&>::type res_type;
return my_vector<res_type>();
}
// bitwise ops:
X operator<<(const X&, const Y&) { return X(); }
Z operator>>(const X&, const Y&) { return Z(); }
Z operator&(const X&, const Y&) { return Z(); }
Z operator|(const X&, const Y&) { return Z(); }
Z operator^(const X&, const Y&) { return Z(); }
// comparison ops:
X operator<(const X&, const Y&) { return X(); }
Z operator>(const X&, const Y&) { return Z(); }
Z operator<=(const X&, const Y&) { return Z(); }
Z operator>=(const X&, const Y&) { return Z(); }
Z operator==(const X&, const Y&) { return Z(); }
Z operator!=(const X&, const Y&) { return Z(); }
// logical
X operator&&(const X&, const Y&) { return X(); }
Z operator||(const X&, const Y&) { return Z(); }
// arithh assignment
Z operator+=( X&, const Y&) { return Z(); }
Z operator-=( X&, const Y&) { return Z(); }
Y operator*=( X&, const Y&) { return Y(); }
Z operator/=( X&, const Y&) { return Z(); }
Z operator%=( X&, const Y&) { return Z(); }
// bitwise assignment
Z operator<<=( X&, const Y&) { return Z(); }
Z operator>>=( X&, const Y&) { return Z(); }
Y operator&=( X&, const Y&) { return Y(); }
Z operator|=( X&, const Y&) { return Z(); }
Z operator^=( X&, const Y&) { return Z(); }
// assignment
class Assign {
public:
void operator=(const Assign& /*a*/) {}
X operator[](const int& /*i*/) { return X(); }
};
namespace boost {
namespace lambda {
// you can do action groups
template<class Act>
struct plain_return_type_2<arithmetic_action<Act>, X, Y> {
typedef Z type;
};
// or specialize the exact action
template<>
struct plain_return_type_2<arithmetic_action<multiply_action>, X, Y> {
typedef X type;
};
// if you want to make a distinction between differently cv-qualified
// types, you need to specialize on a different level:
template<>
struct return_type_2<arithmetic_action<multiply_action>, XX, YY> {
typedef YY type;
};
template<>
struct return_type_2<arithmetic_action<multiply_action>, const XX, const YY> {
typedef ZZ type;
};
template<>
struct return_type_2<arithmetic_action<multiply_action>, volatile XX, volatile YY> {
typedef XX type;
};
template<>
struct return_type_2<arithmetic_action<multiply_action>, volatile const XX, const volatile YY> {
typedef VV type;
};
// the mapping can be more complex:
template<class A, class B>
struct plain_return_type_2<arithmetic_action<plus_action>, my_vector<A>, my_vector<B> > {
typedef typename
return_type_2<arithmetic_action<plus_action>, A&, B&>::type res_type;
typedef my_vector<res_type> type;
};
// bitwise binary:
// you can do action groups
template<class Act>
struct plain_return_type_2<bitwise_action<Act>, X, Y> {
typedef Z type;
};
// or specialize the exact action
template<>
struct plain_return_type_2<bitwise_action<leftshift_action>, X, Y> {
typedef X type;
};
// comparison binary:
// you can do action groups
template<class Act>
struct plain_return_type_2<relational_action<Act>, X, Y> {
typedef Z type;
};
// or specialize the exact action
template<>
struct plain_return_type_2<relational_action<less_action>, X, Y> {
typedef X type;
};
// logical binary:
// you can do action groups
template<class Act>
struct plain_return_type_2<logical_action<Act>, X, Y> {
typedef Z type;
};
// or specialize the exact action
template<>
struct plain_return_type_2<logical_action<and_action>, X, Y> {
typedef X type;
};
// arithmetic assignment :
// you can do action groups
template<class Act>
struct plain_return_type_2<arithmetic_assignment_action<Act>, X, Y> {
typedef Z type;
};
// or specialize the exact action
template<>
struct plain_return_type_2<arithmetic_assignment_action<multiply_action>, X, Y> {
typedef Y type;
};
// arithmetic assignment :
// you can do action groups
template<class Act>
struct plain_return_type_2<bitwise_assignment_action<Act>, X, Y> {
typedef Z type;
};
// or specialize the exact action
template<>
struct plain_return_type_2<bitwise_assignment_action<and_action>, X, Y> {
typedef Y type;
};
// assignment
template<>
struct plain_return_type_2<other_action<assignment_action>, Assign, Assign> {
typedef void type;
};
// subscript
template<>
struct plain_return_type_2<other_action<subscript_action>, Assign, int> {
typedef X type;
};
} // end lambda
} // end boost
void test_binary_operators() {
X x; Y y;
(_1 + _2)(x, y);
(_1 - _2)(x, y);
(_1 * _2)(x, y);
(_1 / _2)(x, y);
(_1 % _2)(x, y);
// make a distinction between differently cv-qualified operators
XX xx; YY yy;
const XX& cxx = xx;
const YY& cyy = yy;
volatile XX& vxx = xx;
volatile YY& vyy = yy;
const volatile XX& cvxx = xx;
const volatile YY& cvyy = yy;
ZZ dummy1 = (_1 * _2)(cxx, cyy);
YY dummy2 = (_1 * _2)(xx, yy);
XX dummy3 = (_1 * _2)(vxx, vyy);
VV dummy4 = (_1 * _2)(cvxx, cvyy);
suppress_unused_variable_warnings(dummy1);
suppress_unused_variable_warnings(dummy2);
suppress_unused_variable_warnings(dummy3);
suppress_unused_variable_warnings(dummy4);
my_vector<int> v1; my_vector<double> v2;
my_vector<double> d = (_1 + _2)(v1, v2);
suppress_unused_variable_warnings(d);
// bitwise
(_1 << _2)(x, y);
(_1 >> _2)(x, y);
(_1 | _2)(x, y);
(_1 & _2)(x, y);
(_1 ^ _2)(x, y);
// comparison
(_1 < _2)(x, y);
(_1 > _2)(x, y);
(_1 <= _2)(x, y);
(_1 >= _2)(x, y);
(_1 == _2)(x, y);
(_1 != _2)(x, y);
// logical
(_1 || _2)(x, y);
(_1 && _2)(x, y);
// arithmetic assignment
(_1 += _2)(x, y);
(_1 -= _2)(x, y);
(_1 *= _2)(x, y);
(_1 /= _2)(x, y);
(_1 %= _2)(x, y);
// bitwise assignment
(_1 <<= _2)(x, y);
(_1 >>= _2)(x, y);
(_1 |= _2)(x, y);
(_1 &= _2)(x, y);
(_1 ^= _2)(x, y);
}
int test_main(int, char *[]) {
test_unary_operators();
test_binary_operators();
return 0;
}

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// is_instance_of_test.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/detail/is_instance_of.hpp"
#include <iostream>
template <class T1> struct A1 {};
template <class T1, class T2> struct A2 {};
template <class T1, class T2, class T3> struct A3 {};
template <class T1, class T2, class T3, class T4> struct A4 {};
class B1 : public A1<int> {};
class B2 : public A2<int,int> {};
class B3 : public A3<int,int,int> {};
class B4 : public A4<int,int,int,int> {};
// classes that are convertible to classes that derive from A instances
// This is not enough to make the test succeed
class C1 { public: operator A1<int>() { return A1<int>(); } };
class C2 { public: operator B2() { return B2(); } };
class C3 { public: operator B3() { return B3(); } };
class C4 { public: operator B4() { return B4(); } };
// test that the result is really a constant
// (in an alternative implementation, gcc 3.0.2. claimed that it was
// a non-constant)
template <bool b> class X {};
// this should compile
X<boost::lambda::is_instance_of_2<int, A2>::value> x;
int test_main(int, char *[]) {
using boost::lambda::is_instance_of_1;
using boost::lambda::is_instance_of_2;
using boost::lambda::is_instance_of_3;
using boost::lambda::is_instance_of_4;
BOOST_CHECK((is_instance_of_1<B1, A1>::value == true));
BOOST_CHECK((is_instance_of_1<A1<float>, A1>::value == true));
BOOST_CHECK((is_instance_of_1<int, A1>::value == false));
BOOST_CHECK((is_instance_of_1<C1, A1>::value == false));
BOOST_CHECK((is_instance_of_2<B2, A2>::value == true));
BOOST_CHECK((is_instance_of_2<A2<int, float>, A2>::value == true));
BOOST_CHECK((is_instance_of_2<int, A2>::value == false));
BOOST_CHECK((is_instance_of_2<C2, A2>::value == false));
BOOST_CHECK((is_instance_of_3<B3, A3>::value == true));
BOOST_CHECK((is_instance_of_3<A3<int, float, char>, A3>::value == true));
BOOST_CHECK((is_instance_of_3<int, A3>::value == false));
BOOST_CHECK((is_instance_of_3<C3, A3>::value == false));
BOOST_CHECK((is_instance_of_4<B4, A4>::value == true));
BOOST_CHECK((is_instance_of_4<A4<int, float, char, double>, A4>::value == true));
BOOST_CHECK((is_instance_of_4<int, A4>::value == false));
BOOST_CHECK((is_instance_of_4<C4, A4>::value == false));
return 0;
}

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// istreambuf_test - test lambda function objects with istreambuf_iterator
//
// Copyright (c) 2007 Peter Dimov
//
// Distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
#include <boost/lambda/lambda.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <iterator>
#include <sstream>
#include <algorithm>
int main()
{
using namespace boost::lambda;
std::stringstream is( "ax2" );
std::istreambuf_iterator<char> b2( is );
std::istreambuf_iterator<char> e2;
std::istreambuf_iterator<char> i = std::find_if( b2, e2, _1 == 'x' );
BOOST_TEST( *i == 'x' );
BOOST_TEST( std::distance( i, e2 ) == 2 );
return boost::report_errors();
}

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// member_pointer_test.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/bind.hpp"
#include <string>
using namespace boost::lambda;
using namespace std;
struct my_struct {
my_struct(int x) : mem(x) {};
int mem;
int fooc() const { return mem; }
int foo() { return mem; }
int foo1c(int y) const { return y + mem; }
int foo1(int y) { return y + mem; }
int foo2c(int y, int x) const { return y + x + mem; }
int foo2(int y, int x) { return y + x + mem; }
int foo3c(int y, int x, int z) const { return y + x + z + mem; }
int foo3(int y, int x, int z ){ return y + x + z + mem; }
int foo4c(int a1, int a2, int a3, int a4) const { return a1+a2+a3+a4+mem; }
int foo4(int a1, int a2, int a3, int a4){ return a1+a2+a3+a4+mem; }
int foo3default(int y = 1, int x = 2, int z = 3) { return y + x + z + mem; }
};
my_struct x(3);
void pointer_to_data_member_tests() {
// int i = 0;
my_struct *y = &x;
BOOST_CHECK((_1 ->* &my_struct::mem)(y) == 3);
(_1 ->* &my_struct::mem)(y) = 4;
BOOST_CHECK(x.mem == 4);
((_1 ->* &my_struct::mem) = 5)(y);
BOOST_CHECK(x.mem == 5);
// &my_struct::mem is a temporary, must be constified
((y ->* _1) = 6)(make_const(&my_struct::mem));
BOOST_CHECK(x.mem == 6);
((_1 ->* _2) = 7)(y, make_const(&my_struct::mem));
BOOST_CHECK(x.mem == 7);
}
void pointer_to_member_function_tests() {
my_struct *y = new my_struct(1);
BOOST_CHECK( (_1 ->* &my_struct::foo)(y)() == (y->mem));
BOOST_CHECK( (_1 ->* &my_struct::fooc)(y)() == (y->mem));
BOOST_CHECK( (y ->* _1)(make_const(&my_struct::foo))() == (y->mem));
BOOST_CHECK( (y ->* _1)(make_const(&my_struct::fooc))() == (y->mem));
BOOST_CHECK( (_1 ->* _2)(y, make_const(&my_struct::foo))() == (y->mem));
BOOST_CHECK( (_1 ->* _2)(y, make_const(&my_struct::fooc))() == (y->mem));
BOOST_CHECK( (_1 ->* &my_struct::foo1)(y)(1) == (y->mem+1));
BOOST_CHECK( (_1 ->* &my_struct::foo1c)(y)(1) == (y->mem+1));
BOOST_CHECK( (y ->* _1)(make_const(&my_struct::foo1))(1) == (y->mem+1));
BOOST_CHECK( (y ->* _1)(make_const(&my_struct::foo1c))(1) == (y->mem+1));
BOOST_CHECK( (_1 ->* _2)(y, make_const(&my_struct::foo1))(1) == (y->mem+1));
BOOST_CHECK( (_1 ->* _2)(y, make_const(&my_struct::foo1c))(1) == (y->mem+1));
BOOST_CHECK( (_1 ->* &my_struct::foo2)(y)(1,2) == (y->mem+1+2));
BOOST_CHECK( (_1 ->* &my_struct::foo2c)(y)(1,2) == (y->mem+1+2));
BOOST_CHECK( (y ->* _1)(make_const(&my_struct::foo2))(1,2) == (y->mem+1+2));
BOOST_CHECK( (y ->* _1)(make_const(&my_struct::foo2c))(1,2) == (y->mem+1+2));
BOOST_CHECK( (_1 ->* _2)(y, make_const(&my_struct::foo2))(1,2) == (y->mem+1+2));
BOOST_CHECK( (_1 ->* _2)(y, make_const(&my_struct::foo2c))(1,2) == (y->mem+1+2));
BOOST_CHECK( (_1 ->* &my_struct::foo3)(y)(1,2,3) == (y->mem+1+2+3));
BOOST_CHECK( (_1 ->* &my_struct::foo3c)(y)(1,2,3) == (y->mem+1+2+3));
BOOST_CHECK( (y ->* _1)(make_const(&my_struct::foo3))(1,2,3) == (y->mem+1+2+3));
BOOST_CHECK( (y ->* _1)(make_const(&my_struct::foo3c))(1,2,3) == (y->mem+1+2+3));
BOOST_CHECK( (_1 ->* _2)(y, make_const(&my_struct::foo3))(1,2,3) == (y->mem+1+2+3));
BOOST_CHECK( (_1 ->* _2)(y, make_const(&my_struct::foo3c))(1,2,3) == (y->mem+1+2+3));
BOOST_CHECK( (_1 ->* &my_struct::foo4)(y)(1,2,3,4) == (y->mem+1+2+3+4));
BOOST_CHECK( (_1 ->* &my_struct::foo4c)(y)(1,2,3,4) == (y->mem+1+2+3+4));
BOOST_CHECK( (y ->* _1)(make_const(&my_struct::foo4))(1,2,3,4) == (y->mem+1+2+3+4));
BOOST_CHECK( (y ->* _1)(make_const(&my_struct::foo4c))(1,2,3,4) == (y->mem+1+2+3+4));
BOOST_CHECK( (_1 ->* _2)(y, make_const(&my_struct::foo4))(1,2,3,4) == (y->mem+1+2+3+4));
BOOST_CHECK( (_1 ->* _2)(y, make_const(&my_struct::foo4c))(1,2,3,4) == (y->mem+1+2+3+4));
// member functions with default values do not work (inherent language issue)
// BOOST_CHECK( (_1 ->* &my_struct::foo3default)(y)() == (y->mem+1+2+3));
}
class A {};
class B {};
class C {};
class D {};
// ->* can be overloaded to do anything
bool operator->*(A /*a*/, B /*b*/) {
return false;
}
bool operator->*(B /*b*/, A /*a*/) {
return true;
}
// let's provide specializations to take care of the return type deduction.
// Note, that you need to provide all four cases for non-const and const
// or use the plain_return_type_2 template.
namespace boost {
namespace lambda {
template <>
struct return_type_2<other_action<member_pointer_action>, B, A> {
typedef bool type;
};
template<>
struct return_type_2<other_action<member_pointer_action>, const B, A> {
typedef bool type;
};
template<>
struct return_type_2<other_action<member_pointer_action>, B, const A> {
typedef bool type;
};
template<>
struct return_type_2<other_action<member_pointer_action>, const B, const A> {
typedef bool type;
};
} // lambda
} // boost
void test_overloaded_pointer_to_member()
{
A a; B b;
// this won't work, can't deduce the return type
// BOOST_CHECK((_1->*_2)(a, b) == false);
// ret<bool> gives the return type
BOOST_CHECK(ret<bool>(_1->*_2)(a, b) == false);
BOOST_CHECK(ret<bool>(a->*_1)(b) == false);
BOOST_CHECK(ret<bool>(_1->*b)(a) == false);
BOOST_CHECK((ret<bool>((var(a))->*b))() == false);
BOOST_CHECK((ret<bool>((var(a))->*var(b)))() == false);
// this is ok without ret<bool> due to the return_type_2 spcialization above
BOOST_CHECK((_1->*_2)(b, a) == true);
BOOST_CHECK((b->*_1)(a) == true);
BOOST_CHECK((_1->*a)(b) == true);
BOOST_CHECK((var(b)->*a)() == true);
return;
}
int test_main(int, char *[]) {
pointer_to_data_member_tests();
pointer_to_member_function_tests();
test_overloaded_pointer_to_member();
return 0;
}

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// operator_tests_simple.cpp -- The Boost Lambda Library ---------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/detail/suppress_unused.hpp"
#include <boost/shared_ptr.hpp>
#include <vector>
#include <map>
#include <set>
#include <string>
#include <iostream>
#ifndef BOOST_NO_STRINGSTREAM
#include <sstream>
#endif
using namespace std;
using namespace boost;
using namespace boost::lambda;
class unary_plus_tester {};
unary_plus_tester operator+(const unary_plus_tester& a) { return a; }
void cout_tests()
{
#ifndef BOOST_NO_STRINGSTREAM
using std::cout;
ostringstream os;
int i = 10;
(os << _1)(i);
(os << constant("FOO"))();
BOOST_CHECK(os.str() == std::string("10FOO"));
istringstream is("ABC 1");
std::string s;
int k;
is >> s;
is >> k;
BOOST_CHECK(s == std::string("ABC"));
BOOST_CHECK(k == 1);
// test for constant, constant_ref and var
i = 5;
constant_type<int>::type ci(constant(i));
var_type<int>::type vi(var(i));
(vi = _1)(make_const(100));
BOOST_CHECK((ci)() == 5);
BOOST_CHECK(i == 100);
int a;
constant_ref_type<int>::type cr(constant_ref(i));
(++vi, var(a) = cr)();
BOOST_CHECK(i == 101);
#endif
}
void arithmetic_operators() {
int i = 1; int j = 2; int k = 3;
using namespace std;
using namespace boost::lambda;
BOOST_CHECK((_1 + 1)(i)==2);
BOOST_CHECK(((_1 + 1) * _2)(i, j)==4);
BOOST_CHECK((_1 - 1)(i)==0);
BOOST_CHECK((_1 * 2)(j)==4);
BOOST_CHECK((_1 / 2)(j)==1);
BOOST_CHECK((_1 % 2)(k)==1);
BOOST_CHECK((-_1)(i) == -1);
BOOST_CHECK((+_1)(i) == 1);
// test that unary plus really does something
unary_plus_tester u;
unary_plus_tester up = (+_1)(u);
boost::lambda::detail::suppress_unused_variable_warnings(up);
}
void bitwise_operators() {
unsigned int ui = 2;
BOOST_CHECK((_1 << 1)(ui)==(2 << 1));
BOOST_CHECK((_1 >> 1)(ui)==(2 >> 1));
BOOST_CHECK((_1 & 1)(ui)==(2 & 1));
BOOST_CHECK((_1 | 1)(ui)==(2 | 1));
BOOST_CHECK((_1 ^ 1)(ui)==(2 ^ 1));
BOOST_CHECK((~_1)(ui)==~2u);
}
void comparison_operators() {
int i = 0, j = 1;
BOOST_CHECK((_1 < _2)(i, j) == true);
BOOST_CHECK((_1 <= _2)(i, j) == true);
BOOST_CHECK((_1 == _2)(i, j) == false);
BOOST_CHECK((_1 != _2)(i, j) == true);
BOOST_CHECK((_1 > _2)(i, j) == false);
BOOST_CHECK((_1 >= _2)(i, j) == false);
BOOST_CHECK((!(_1 < _2))(i, j) == false);
BOOST_CHECK((!(_1 <= _2))(i, j) == false);
BOOST_CHECK((!(_1 == _2))(i, j) == true);
BOOST_CHECK((!(_1 != _2))(i, j) == false);
BOOST_CHECK((!(_1 > _2))(i, j) == true);
BOOST_CHECK((!(_1 >= _2))(i, j) == true);
}
void logical_operators() {
bool t = true, f = false;
BOOST_CHECK((_1 && _2)(t, t) == true);
BOOST_CHECK((_1 && _2)(t, f) == false);
BOOST_CHECK((_1 && _2)(f, t) == false);
BOOST_CHECK((_1 && _2)(f, f) == false);
BOOST_CHECK((_1 || _2)(t, t) == true);
BOOST_CHECK((_1 || _2)(t, f) == true);
BOOST_CHECK((_1 || _2)(f, t) == true);
BOOST_CHECK((_1 || _2)(f, f) == false);
BOOST_CHECK((!_1)(t) == false);
BOOST_CHECK((!_1)(f) == true);
// test short circuiting
int i=0;
(false && ++_1)(i);
BOOST_CHECK(i==0);
i = 0;
(true && ++_1)(i);
BOOST_CHECK(i==1);
i = 0;
(false || ++_1)(i);
BOOST_CHECK(i==1);
i = 0;
(true || ++_1)(i);
BOOST_CHECK(i==0);
i = 0;
}
void unary_incs_and_decs() {
int i = 0;
BOOST_CHECK(_1++(i) == 0);
BOOST_CHECK(i == 1);
i = 0;
BOOST_CHECK(_1--(i) == 0);
BOOST_CHECK(i == -1);
i = 0;
BOOST_CHECK((++_1)(i) == 1);
BOOST_CHECK(i == 1);
i = 0;
BOOST_CHECK((--_1)(i) == -1);
BOOST_CHECK(i == -1);
i = 0;
// the result of prefix -- and ++ are lvalues
(++_1)(i) = 10;
BOOST_CHECK(i==10);
i = 0;
(--_1)(i) = 10;
BOOST_CHECK(i==10);
i = 0;
}
void compound_operators() {
int i = 1;
// normal variable as the left operand
(i += _1)(make_const(1));
BOOST_CHECK(i == 2);
(i -= _1)(make_const(1));
BOOST_CHECK(i == 1);
(i *= _1)(make_const(10));
BOOST_CHECK(i == 10);
(i /= _1)(make_const(2));
BOOST_CHECK(i == 5);
(i %= _1)(make_const(2));
BOOST_CHECK(i == 1);
// lambda expression as a left operand
(_1 += 1)(i);
BOOST_CHECK(i == 2);
(_1 -= 1)(i);
BOOST_CHECK(i == 1);
(_1 *= 10)(i);
BOOST_CHECK(i == 10);
(_1 /= 2)(i);
BOOST_CHECK(i == 5);
(_1 %= 2)(i);
BOOST_CHECK(i == 1);
// lambda expression as a left operand with rvalue on RHS
(_1 += (0 + 1))(i);
BOOST_CHECK(i == 2);
(_1 -= (0 + 1))(i);
BOOST_CHECK(i == 1);
(_1 *= (0 + 10))(i);
BOOST_CHECK(i == 10);
(_1 /= (0 + 2))(i);
BOOST_CHECK(i == 5);
(_1 %= (0 + 2))(i);
BOOST_CHECK(i == 1);
// shifts
unsigned int ui = 2;
(_1 <<= 1)(ui);
BOOST_CHECK(ui==(2 << 1));
ui = 2;
(_1 >>= 1)(ui);
BOOST_CHECK(ui==(2 >> 1));
ui = 2;
(ui <<= _1)(make_const(1));
BOOST_CHECK(ui==(2 << 1));
ui = 2;
(ui >>= _1)(make_const(1));
BOOST_CHECK(ui==(2 >> 1));
// and, or, xor
ui = 2;
(_1 &= 1)(ui);
BOOST_CHECK(ui==(2 & 1));
ui = 2;
(_1 |= 1)(ui);
BOOST_CHECK(ui==(2 | 1));
ui = 2;
(_1 ^= 1)(ui);
BOOST_CHECK(ui==(2 ^ 1));
ui = 2;
(ui &= _1)(make_const(1));
BOOST_CHECK(ui==(2 & 1));
ui = 2;
(ui |= _1)(make_const(1));
BOOST_CHECK(ui==(2 | 1));
ui = 2;
(ui ^= _1)(make_const(1));
BOOST_CHECK(ui==(2 ^ 1));
}
void assignment_and_subscript() {
// assignment and subscript need to be defined as member functions.
// Hence, if you wish to use a normal variable as the left hand argument,
// you must wrap it with var to turn it into a lambda expression
using std::string;
string s;
(_1 = "one")(s);
BOOST_CHECK(s == string("one"));
(var(s) = "two")();
BOOST_CHECK(s == string("two"));
BOOST_CHECK((var(s)[_1])(make_const(2)) == 'o');
BOOST_CHECK((_1[2])(s) == 'o');
BOOST_CHECK((_1[_2])(s, make_const(2)) == 'o');
// subscript returns lvalue
(var(s)[_1])(make_const(1)) = 'o';
BOOST_CHECK(s == "too");
(_1[1])(s) = 'a';
BOOST_CHECK(s == "tao");
(_1[_2])(s, make_const(0)) = 'm';
BOOST_CHECK(s == "mao");
// TODO: tests for vector, set, map, multimap
}
class A {};
void address_of_and_dereference() {
A a; int i = 42;
BOOST_CHECK((&_1)(a) == &a);
BOOST_CHECK((*&_1)(i) == 42);
std::vector<int> vi; vi.push_back(1);
std::vector<int>::iterator it = vi.begin();
(*_1 = 7)(it);
BOOST_CHECK(vi[0] == 7);
const std::vector<int>::iterator cit(it);
(*_1 = 8)(cit);
BOOST_CHECK(vi[0] == 8);
// TODO: Add tests for more complex iterator types
boost::shared_ptr<int> ptr(new int(0));
(*_1 = 7)(ptr);
BOOST_CHECK(*ptr == 7);
const boost::shared_ptr<int> cptr(ptr);
(*_1 = 8)(cptr);
BOOST_CHECK(*ptr == 8);
}
void comma() {
int i = 100;
BOOST_CHECK((_1 = 10, 2 * _1)(i) == 20);
// TODO: that the return type is the exact type of the right argument
// (that r/l valueness is preserved)
}
void pointer_arithmetic() {
int ia[4] = { 1, 2, 3, 4 };
int* ip = ia;
int* ia_last = &ia[3];
const int cia[4] = { 1, 2, 3, 4 };
const int* cip = cia;
const int* cia_last = &cia[3];
// non-const array
BOOST_CHECK((*(_1 + 1))(ia) == 2);
// non-const pointer
BOOST_CHECK((*(_1 + 1))(ip) == 2);
BOOST_CHECK((*(_1 - 1))(ia_last) == 3);
// const array
BOOST_CHECK((*(_1 + 1))(cia) == 2);
// const pointer
BOOST_CHECK((*(_1 + 1))(cip) == 2);
BOOST_CHECK((*(_1 - 1))(cia_last) == 3);
// pointer arithmetic should not make non-consts const
(*(_1 + 2))(ia) = 0;
(*(_1 + 3))(ip) = 0;
BOOST_CHECK(ia[2] == 0);
BOOST_CHECK(ia[3] == 0);
// pointer - pointer
BOOST_CHECK((_1 - _2)(ia_last, ia) == 3);
BOOST_CHECK((_1 - _2)(cia_last, cia) == 3);
BOOST_CHECK((ia_last - _1)(ia) == 3);
BOOST_CHECK((cia_last - _1)(cia) == 3);
BOOST_CHECK((cia_last - _1)(cip) == 3);
}
int test_main(int, char *[]) {
arithmetic_operators();
bitwise_operators();
comparison_operators();
logical_operators();
unary_incs_and_decs();
compound_operators();
assignment_and_subscript();
address_of_and_dereference();
comma();
pointer_arithmetic();
cout_tests();
return 0;
}

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@@ -0,0 +1,148 @@
// phoenix_style_control_structures.cpp -- The Boost Lambda Library ------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/if.hpp"
#include "boost/lambda/loops.hpp"
#include <iostream>
#include <vector>
#include <list>
#include <algorithm>
#include <cmath>
#include <cassert>
#include <functional>
using namespace boost::lambda;
using namespace std;
// If-else, while, do-while, for statements
int test_main(int, char *[]) {
vector<int> v;
v.clear();
v.push_back(1);
v.push_back(2);
v.push_back(3);
v.push_back(4);
v.push_back(5);
v.push_back(6);
v.push_back(7);
v.push_back(8);
v.push_back(9);
v.push_back(10);
int sum = 0;
//////////////////////////////////
for_each(v.begin(), v.end(),
if_(_1 > 3 && _1 <= 8)
[
sum += _1
]
);
BOOST_CHECK(sum == 4+5+6+7+8);
int gt = 0, eq = 0, lt = 0;
//////////////////////////////////
for_each(v.begin(), v.end(),
if_(_1 > 5)
[
++var(gt)
]
.else_
[
if_(_1 == 5)
[
++var(eq)
]
.else_
[
++var(lt)
]
]
);
BOOST_CHECK(lt==4);
BOOST_CHECK(eq==1);
BOOST_CHECK(gt==5);
vector<int> t = v;
int counta = 0;
int countb = 0;
//////////////////////////////////
for_each(v.begin(), v.end(),
(
while_(_1--)
[
++var(counta)
],
++var(countb)
)
);
BOOST_CHECK(counta == 55);
BOOST_CHECK(countb == 10);
v = t;
counta = 0; countb = 0;
//////////////////////////////////
for_each(v.begin(), v.end(),
(
do_
[
++var(counta)
]
.while_(_1--),
++var(countb)
)
);
BOOST_CHECK(counta == (2+11)*10/2);
BOOST_CHECK(countb == 10);
v = t;
counta = 0; countb = 0;
//////////////////////////////////
int iii;
for_each(v.begin(), v.end(),
(
for_(var(iii) = 0, var(iii) < _1, ++var(iii))
[
++var(counta)
],
++var(countb)
)
);
BOOST_CHECK(counta == (1+10)*10/2);
BOOST_CHECK(countb == 10);
v = t;
return 0;
}

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@@ -0,0 +1,314 @@
// result_of_tests.cpp -- The Boost Lambda Library ------------------
//
// Copyright (C) 2010 Steven Watanabe
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include <boost/lambda/bind.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/type_traits/is_same.hpp>
struct with_result_type {
typedef int result_type;
int operator()() const { return 0; }
int operator()(int) const { return 1; }
int operator()(int, int) const { return 2; }
int operator()(int, int, int) const { return 3; }
int operator()(int, int, int, int) const { return 4; }
int operator()(int, int, int, int, int) const { return 5; }
int operator()(int, int, int, int, int, int) const { return 6; }
int operator()(int, int, int, int, int, int, int) const { return 7; }
int operator()(int, int, int, int, int, int, int, int) const { return 8; }
int operator()(int, int, int, int, int, int, int, int, int) const { return 9; }
};
struct with_result_template_value {
template<class Sig>
struct result;
template<class This>
struct result<This()> {
typedef int type;
};
template<class This, class A1>
struct result<This(A1)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int>));
typedef int type;
};
template<class This, class A1, class A2>
struct result<This(A1, A2)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int>));
BOOST_MPL_ASSERT((boost::is_same<A2, int>));
typedef int type;
};
template<class This, class A1, class A2, class A3>
struct result<This(A1, A2, A3)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int>));
BOOST_MPL_ASSERT((boost::is_same<A2, int>));
BOOST_MPL_ASSERT((boost::is_same<A3, int>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4>
struct result<This(A1, A2, A3, A4)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int>));
BOOST_MPL_ASSERT((boost::is_same<A2, int>));
BOOST_MPL_ASSERT((boost::is_same<A3, int>));
BOOST_MPL_ASSERT((boost::is_same<A4, int>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4, class A5>
struct result<This(A1, A2, A3, A4, A5)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int>));
BOOST_MPL_ASSERT((boost::is_same<A2, int>));
BOOST_MPL_ASSERT((boost::is_same<A3, int>));
BOOST_MPL_ASSERT((boost::is_same<A4, int>));
BOOST_MPL_ASSERT((boost::is_same<A5, int>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4, class A5, class A6>
struct result<This(A1, A2, A3, A4, A5, A6)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int>));
BOOST_MPL_ASSERT((boost::is_same<A2, int>));
BOOST_MPL_ASSERT((boost::is_same<A3, int>));
BOOST_MPL_ASSERT((boost::is_same<A4, int>));
BOOST_MPL_ASSERT((boost::is_same<A5, int>));
BOOST_MPL_ASSERT((boost::is_same<A6, int>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4, class A5, class A6, class A7>
struct result<This(A1, A2, A3, A4, A5, A6, A7)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int>));
BOOST_MPL_ASSERT((boost::is_same<A2, int>));
BOOST_MPL_ASSERT((boost::is_same<A3, int>));
BOOST_MPL_ASSERT((boost::is_same<A4, int>));
BOOST_MPL_ASSERT((boost::is_same<A5, int>));
BOOST_MPL_ASSERT((boost::is_same<A6, int>));
BOOST_MPL_ASSERT((boost::is_same<A7, int>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8>
struct result<This(A1, A2, A3, A4, A5, A6, A7, A8)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int>));
BOOST_MPL_ASSERT((boost::is_same<A2, int>));
BOOST_MPL_ASSERT((boost::is_same<A3, int>));
BOOST_MPL_ASSERT((boost::is_same<A4, int>));
BOOST_MPL_ASSERT((boost::is_same<A5, int>));
BOOST_MPL_ASSERT((boost::is_same<A6, int>));
BOOST_MPL_ASSERT((boost::is_same<A7, int>));
BOOST_MPL_ASSERT((boost::is_same<A8, int>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9>
struct result<This(A1, A2, A3, A4, A5, A6, A7, A8, A9)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int>));
BOOST_MPL_ASSERT((boost::is_same<A2, int>));
BOOST_MPL_ASSERT((boost::is_same<A3, int>));
BOOST_MPL_ASSERT((boost::is_same<A4, int>));
BOOST_MPL_ASSERT((boost::is_same<A5, int>));
BOOST_MPL_ASSERT((boost::is_same<A6, int>));
BOOST_MPL_ASSERT((boost::is_same<A7, int>));
BOOST_MPL_ASSERT((boost::is_same<A8, int>));
BOOST_MPL_ASSERT((boost::is_same<A9, int>));
typedef int type;
};
int operator()() const { return 0; }
int operator()(int) const { return 1; }
int operator()(int, int) const { return 2; }
int operator()(int, int, int) const { return 3; }
int operator()(int, int, int, int) const { return 4; }
int operator()(int, int, int, int, int) const { return 5; }
int operator()(int, int, int, int, int, int) const { return 6; }
int operator()(int, int, int, int, int, int, int) const { return 7; }
int operator()(int, int, int, int, int, int, int, int) const { return 8; }
int operator()(int, int, int, int, int, int, int, int, int) const { return 9; }
};
struct with_result_template_reference {
template<class Sig>
struct result;
template<class This>
struct result<This()> {
typedef int type;
};
template<class This, class A1>
struct result<This(A1)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int&>));
typedef int type;
};
template<class This, class A1, class A2>
struct result<This(A1, A2)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int&>));
BOOST_MPL_ASSERT((boost::is_same<A2, int&>));
typedef int type;
};
template<class This, class A1, class A2, class A3>
struct result<This(A1, A2, A3)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int&>));
BOOST_MPL_ASSERT((boost::is_same<A2, int&>));
BOOST_MPL_ASSERT((boost::is_same<A3, int&>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4>
struct result<This(A1, A2, A3, A4)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int&>));
BOOST_MPL_ASSERT((boost::is_same<A2, int&>));
BOOST_MPL_ASSERT((boost::is_same<A3, int&>));
BOOST_MPL_ASSERT((boost::is_same<A4, int&>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4, class A5>
struct result<This(A1, A2, A3, A4, A5)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int&>));
BOOST_MPL_ASSERT((boost::is_same<A2, int&>));
BOOST_MPL_ASSERT((boost::is_same<A3, int&>));
BOOST_MPL_ASSERT((boost::is_same<A4, int&>));
BOOST_MPL_ASSERT((boost::is_same<A5, int&>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4, class A5, class A6>
struct result<This(A1, A2, A3, A4, A5, A6)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int&>));
BOOST_MPL_ASSERT((boost::is_same<A2, int&>));
BOOST_MPL_ASSERT((boost::is_same<A3, int&>));
BOOST_MPL_ASSERT((boost::is_same<A4, int&>));
BOOST_MPL_ASSERT((boost::is_same<A5, int&>));
BOOST_MPL_ASSERT((boost::is_same<A6, int&>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4, class A5, class A6, class A7>
struct result<This(A1, A2, A3, A4, A5, A6, A7)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int&>));
BOOST_MPL_ASSERT((boost::is_same<A2, int&>));
BOOST_MPL_ASSERT((boost::is_same<A3, int&>));
BOOST_MPL_ASSERT((boost::is_same<A4, int&>));
BOOST_MPL_ASSERT((boost::is_same<A5, int&>));
BOOST_MPL_ASSERT((boost::is_same<A6, int&>));
BOOST_MPL_ASSERT((boost::is_same<A7, int&>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8>
struct result<This(A1, A2, A3, A4, A5, A6, A7, A8)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int&>));
BOOST_MPL_ASSERT((boost::is_same<A2, int&>));
BOOST_MPL_ASSERT((boost::is_same<A3, int&>));
BOOST_MPL_ASSERT((boost::is_same<A4, int&>));
BOOST_MPL_ASSERT((boost::is_same<A5, int&>));
BOOST_MPL_ASSERT((boost::is_same<A6, int&>));
BOOST_MPL_ASSERT((boost::is_same<A7, int&>));
BOOST_MPL_ASSERT((boost::is_same<A8, int&>));
typedef int type;
};
template<class This, class A1, class A2, class A3, class A4, class A5, class A6, class A7, class A8, class A9>
struct result<This(A1, A2, A3, A4, A5, A6, A7, A8, A9)> {
BOOST_MPL_ASSERT((boost::is_same<A1, int&>));
BOOST_MPL_ASSERT((boost::is_same<A2, int&>));
BOOST_MPL_ASSERT((boost::is_same<A3, int&>));
BOOST_MPL_ASSERT((boost::is_same<A4, int&>));
BOOST_MPL_ASSERT((boost::is_same<A5, int&>));
BOOST_MPL_ASSERT((boost::is_same<A6, int&>));
BOOST_MPL_ASSERT((boost::is_same<A7, int&>));
BOOST_MPL_ASSERT((boost::is_same<A8, int&>));
BOOST_MPL_ASSERT((boost::is_same<A9, int&>));
typedef int type;
};
int operator()() const { return 0; }
int operator()(int) const { return 1; }
int operator()(int, int) const { return 2; }
int operator()(int, int, int) const { return 3; }
int operator()(int, int, int, int) const { return 4; }
int operator()(int, int, int, int, int) const { return 5; }
int operator()(int, int, int, int, int, int) const { return 6; }
int operator()(int, int, int, int, int, int, int) const { return 7; }
int operator()(int, int, int, int, int, int, int, int) const { return 8; }
int operator()(int, int, int, int, int, int, int, int, int) const { return 9; }
};
template<class F>
typename boost::result_of<F()>::type apply0(F f) {
return f();
}
template<class A, class F>
typename boost::result_of<F(A)>::type apply1(F f, A a) {
return f(a);
}
template<class A, class B, class F>
typename boost::result_of<F(A, B)>::type apply2(F f, A a, B b) {
return f(a, b);
}
template<class A, class B, class C, class F>
typename boost::result_of<F(A, B, C)>::type apply3(F f, A a, B b, C c) {
return f(a, b, c);
}
using namespace boost::lambda;
int test_main(int, char *[]) {
BOOST_CHECK(boost::lambda::bind(with_result_type())() == 0);
BOOST_CHECK(boost::lambda::bind(with_result_type(), 1)() == 1);
BOOST_CHECK(boost::lambda::bind(with_result_type(), 1, 2)() == 2);
BOOST_CHECK(boost::lambda::bind(with_result_type(), 1, 2, 3)() == 3);
BOOST_CHECK(boost::lambda::bind(with_result_type(), 1, 2, 3, 4)() == 4);
BOOST_CHECK(boost::lambda::bind(with_result_type(), 1, 2, 3, 4, 5)() == 5);
BOOST_CHECK(boost::lambda::bind(with_result_type(), 1, 2, 3, 4, 5, 6)() == 6);
BOOST_CHECK(boost::lambda::bind(with_result_type(), 1, 2, 3, 4, 5, 6, 7)() == 7);
BOOST_CHECK(boost::lambda::bind(with_result_type(), 1, 2, 3, 4, 5, 6, 7, 8)() == 8);
BOOST_CHECK(boost::lambda::bind(with_result_type(), 1, 2, 3, 4, 5, 6, 7, 8, 9)() == 9);
// Nullary result_of fails
//BOOST_CHECK(boost::lambda::bind(with_result_template_value())() == 0);
BOOST_CHECK(boost::lambda::bind(with_result_template_value(), 1)() == 1);
BOOST_CHECK(boost::lambda::bind(with_result_template_value(), 1, 2)() == 2);
BOOST_CHECK(boost::lambda::bind(with_result_template_value(), 1, 2, 3)() == 3);
BOOST_CHECK(boost::lambda::bind(with_result_template_value(), 1, 2, 3, 4)() == 4);
BOOST_CHECK(boost::lambda::bind(with_result_template_value(), 1, 2, 3, 4, 5)() == 5);
BOOST_CHECK(boost::lambda::bind(with_result_template_value(), 1, 2, 3, 4, 5, 6)() == 6);
BOOST_CHECK(boost::lambda::bind(with_result_template_value(), 1, 2, 3, 4, 5, 6, 7)() == 7);
BOOST_CHECK(boost::lambda::bind(with_result_template_value(), 1, 2, 3, 4, 5, 6, 7, 8)() == 8);
BOOST_CHECK(boost::lambda::bind(with_result_template_value(), 1, 2, 3, 4, 5, 6, 7, 8, 9)() == 9);
int one = 1,
two = 2,
three = 3,
four = 4,
five = 5,
six = 6,
seven = 7,
eight = 8,
nine = 9;
// Nullary result_of fails
//BOOST_CHECK(boost::lambda::bind(with_result_template_reference())() == 0);
BOOST_CHECK(boost::lambda::bind(with_result_template_reference(), var(one))() == 1);
BOOST_CHECK(boost::lambda::bind(with_result_template_reference(), var(one), var(two))() == 2);
BOOST_CHECK(boost::lambda::bind(with_result_template_reference(), var(one), var(two), var(three))() == 3);
BOOST_CHECK(boost::lambda::bind(with_result_template_reference(), var(one), var(two), var(three), var(four))() == 4);
BOOST_CHECK(boost::lambda::bind(with_result_template_reference(), var(one), var(two), var(three), var(four), var(five))() == 5);
BOOST_CHECK(boost::lambda::bind(with_result_template_reference(), var(one), var(two), var(three), var(four), var(five), var(six))() == 6);
BOOST_CHECK(boost::lambda::bind(with_result_template_reference(), var(one), var(two), var(three), var(four), var(five), var(six), var(seven))() == 7);
BOOST_CHECK(boost::lambda::bind(with_result_template_reference(), var(one), var(two), var(three), var(four), var(five), var(six), var(seven), var(eight))() == 8);
BOOST_CHECK(boost::lambda::bind(with_result_template_reference(), var(one), var(two), var(three), var(four), var(five), var(six), var(seven), var(eight), var(nine))() == 9);
// Check using result_of with lambda functors
BOOST_CHECK(apply0(constant(0)) == 0);
BOOST_CHECK(apply1<int>(_1, one) == 1);
BOOST_CHECK(apply1<int&>(_1, one) == 1);
BOOST_CHECK(apply1<const int&>(_1, one) == 1);
BOOST_CHECK((apply2<int, int>(_1 + _2, one, two) == 3));
BOOST_CHECK((apply2<int&, int&>(_1 + _2, one, two) == 3));
BOOST_CHECK((apply2<const int&, const int&>(_1 + _2, one, two) == 3));
BOOST_CHECK((apply3<int, int, int>(_1 + _2 + _3, one, two, three) == 6));
BOOST_CHECK((apply3<int&, int&, int&>(_1 + _2 + _3, one, two, three) == 6));
BOOST_CHECK((apply3<const int&, const int&, const int&>(_1 + _2 + _3, one, two, three) == 6));
return 0;
}

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@@ -0,0 +1,53 @@
// ret_test.cpp - The Boost Lambda Library -----------------------
//
// Copyright (C) 2009 Steven Watanabe
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
#include <boost/test/minimal.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/mpl/assert.hpp>
#include <boost/type_traits/is_same.hpp>
template<class R, class F>
void test_ret(R r, F f) {
typename F::result_type x = f();
BOOST_MPL_ASSERT((boost::is_same<R, typename F::result_type>));
BOOST_CHECK(x == r);
}
template<class R, class F, class T1>
void test_ret(R r, F f, T1& t1) {
typename F::result_type x = f(t1);
BOOST_MPL_ASSERT((boost::is_same<R, typename F::result_type>));
BOOST_CHECK(x == r);
}
class add_result {
public:
add_result(int i = 0) : value(i) {}
friend bool operator==(const add_result& lhs, const add_result& rhs) {
return(lhs.value == rhs.value);
}
private:
int value;
};
class addable {};
add_result operator+(addable, addable) {
return add_result(7);
}
int test_main(int, char*[]) {
addable test;
test_ret(add_result(7), boost::lambda::ret<add_result>(boost::lambda::_1 + test), test);
test_ret(8.0, boost::lambda::ret<double>(boost::lambda::constant(7) + 1));
return 0;
}

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@@ -0,0 +1,57 @@
// rvalue_test - test lambda function objects with rvalue arguments
//
// Copyright (c) 2007 Peter Dimov
//
// Distributed under the Boost Software License, Version 1.0.
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
#include <boost/lambda/lambda.hpp>
#include <boost/detail/lightweight_test.hpp>
int main()
{
using namespace boost::lambda;
int x = 0;
int const y = 1;
int const z = 2;
BOOST_TEST( _1( x ) == 0 );
BOOST_TEST( _1( y ) == 1 );
BOOST_TEST( _1( 2 ) == 2 );
BOOST_TEST( _2( x, x ) == 0 );
BOOST_TEST( _2( x, y ) == 1 );
BOOST_TEST( _2( x, 2 ) == 2 );
BOOST_TEST( _2( 4, x ) == 0 );
BOOST_TEST( _2( 4, y ) == 1 );
BOOST_TEST( _2( 4, 2 ) == 2 );
(_1 = _2)( x, y );
BOOST_TEST( x == y );
(_1 = _2)( x, 3 );
BOOST_TEST( x == 3 );
(_2 = _1)( z, x );
BOOST_TEST( x == z );
(_2 = _1)( 4, x );
BOOST_TEST( x == 4 );
BOOST_TEST( _3( x, x, x ) == x );
BOOST_TEST( _3( x, x, y ) == y );
BOOST_TEST( _3( x, x, 2 ) == 2 );
BOOST_TEST( _3( x, 5, x ) == x );
BOOST_TEST( _3( x, 5, y ) == y );
BOOST_TEST( _3( x, 5, 2 ) == 2 );
BOOST_TEST( _3( 9, 5, x ) == x );
BOOST_TEST( _3( 9, 5, y ) == y );
BOOST_TEST( _3( 9, 5, 2 ) == 2 );
return boost::report_errors();
}

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@@ -0,0 +1,392 @@
// switch_test.cpp -- The Boost Lambda Library --------------------------
//
// Copyright (C) 2000-2003 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
// Copyright (C) 2000-2003 Gary Powell (powellg@amazon.com)
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// For more information, see www.boost.org
// -----------------------------------------------------------------------
#include <boost/test/minimal.hpp> // see "Header Implementation Option"
#include "boost/lambda/lambda.hpp"
#include "boost/lambda/if.hpp"
#include "boost/lambda/switch.hpp"
#include <iostream>
#include <algorithm>
#include <vector>
#include <string>
// Check that elements 0 -- index are 1, and the rest are 0
bool check(const std::vector<int>& v, int index) {
using namespace boost::lambda;
int counter = 0;
std::vector<int>::const_iterator
result = std::find_if(v.begin(), v.end(),
! if_then_else_return(
var(counter)++ <= index,
_1 == 1,
_1 == 0)
);
return result == v.end();
}
void do_switch_no_defaults_tests() {
using namespace boost::lambda;
int i = 0;
std::vector<int> v,w;
// elements from 0 to 9
std::generate_n(std::back_inserter(v),
10,
var(i)++);
std::fill_n(std::back_inserter(w), 10, 0);
// ---
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0]))
)
);
BOOST_CHECK(check(w, 0));
std::fill_n(w.begin(), 10, 0);
// ---
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1]))
)
);
BOOST_CHECK(check(w, 1));
std::fill_n(w.begin(), 10, 0);
// ---
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2]))
)
);
BOOST_CHECK(check(w, 2));
std::fill_n(w.begin(), 10, 0);
// ---
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3]))
)
);
BOOST_CHECK(check(w, 3));
std::fill_n(w.begin(), 10, 0);
// ---
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3])),
case_statement<4>(++var(w[4]))
)
);
BOOST_CHECK(check(w, 4));
std::fill_n(w.begin(), 10, 0);
// ---
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3])),
case_statement<4>(++var(w[4])),
case_statement<5>(++var(w[5]))
)
);
BOOST_CHECK(check(w, 5));
std::fill_n(w.begin(), 10, 0);
// ---
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3])),
case_statement<4>(++var(w[4])),
case_statement<5>(++var(w[5])),
case_statement<6>(++var(w[6]))
)
);
BOOST_CHECK(check(w, 6));
std::fill_n(w.begin(), 10, 0);
// ---
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3])),
case_statement<4>(++var(w[4])),
case_statement<5>(++var(w[5])),
case_statement<6>(++var(w[6])),
case_statement<7>(++var(w[7]))
)
);
BOOST_CHECK(check(w, 7));
std::fill_n(w.begin(), 10, 0);
// ---
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3])),
case_statement<4>(++var(w[4])),
case_statement<5>(++var(w[5])),
case_statement<6>(++var(w[6])),
case_statement<7>(++var(w[7])),
case_statement<8>(++var(w[8]))
)
);
BOOST_CHECK(check(w, 8));
std::fill_n(w.begin(), 10, 0);
}
void do_switch_yes_defaults_tests() {
using namespace boost::lambda;
int i = 0;
std::vector<int> v,w;
// elements from 0 to 9
std::generate_n(std::back_inserter(v),
10,
var(i)++);
std::fill_n(std::back_inserter(w), 10, 0);
int default_count;
// ---
default_count = 0;
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
default_statement(++var(default_count))
)
);
BOOST_CHECK(check(w, -1));
BOOST_CHECK(default_count == 10);
std::fill_n(w.begin(), 10, 0);
// ---
default_count = 0;
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
default_statement(++var(default_count))
)
);
BOOST_CHECK(check(w, 0));
BOOST_CHECK(default_count == 9);
std::fill_n(w.begin(), 10, 0);
// ---
default_count = 0;
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
default_statement(++var(default_count))
)
);
BOOST_CHECK(check(w, 1));
BOOST_CHECK(default_count == 8);
std::fill_n(w.begin(), 10, 0);
// ---
default_count = 0;
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
default_statement(++var(default_count))
)
);
BOOST_CHECK(check(w, 2));
BOOST_CHECK(default_count == 7);
std::fill_n(w.begin(), 10, 0);
// ---
default_count = 0;
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3])),
default_statement(++var(default_count))
)
);
BOOST_CHECK(check(w, 3));
BOOST_CHECK(default_count == 6);
std::fill_n(w.begin(), 10, 0);
// ---
default_count = 0;
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3])),
case_statement<4>(++var(w[4])),
default_statement(++var(default_count))
)
);
BOOST_CHECK(check(w, 4));
BOOST_CHECK(default_count == 5);
std::fill_n(w.begin(), 10, 0);
// ---
default_count = 0;
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3])),
case_statement<4>(++var(w[4])),
case_statement<5>(++var(w[5])),
default_statement(++var(default_count))
)
);
BOOST_CHECK(check(w, 5));
BOOST_CHECK(default_count == 4);
std::fill_n(w.begin(), 10, 0);
// ---
default_count = 0;
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3])),
case_statement<4>(++var(w[4])),
case_statement<5>(++var(w[5])),
case_statement<6>(++var(w[6])),
default_statement(++var(default_count))
)
);
BOOST_CHECK(check(w, 6));
BOOST_CHECK(default_count == 3);
std::fill_n(w.begin(), 10, 0);
// ---
default_count = 0;
std::for_each(v.begin(), v.end(),
switch_statement(
_1,
case_statement<0>(++var(w[0])),
case_statement<1>(++var(w[1])),
case_statement<2>(++var(w[2])),
case_statement<3>(++var(w[3])),
case_statement<4>(++var(w[4])),
case_statement<5>(++var(w[5])),
case_statement<6>(++var(w[6])),
case_statement<7>(++var(w[7])),
default_statement(++var(default_count))
)
);
BOOST_CHECK(check(w, 7));
BOOST_CHECK(default_count == 2);
std::fill_n(w.begin(), 10, 0);
}
void test_empty_cases() {
using namespace boost::lambda;
// ---
switch_statement(
_1,
default_statement()
)(make_const(1));
switch_statement(
_1,
case_statement<1>()
)(make_const(1));
}
int test_main(int, char* []) {
do_switch_no_defaults_tests();
do_switch_yes_defaults_tests();
test_empty_cases();
return EXIT_SUCCESS;
}