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Reworked mismatch tests to count the number of comparisons, and make sure we are conforming with LWG2404. We are

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@222159 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow 2014-11-17 18:52:25 +00:00
parent cfeac66f8c
commit 36628eb77a
2 changed files with 47 additions and 58 deletions
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47
test/algorithms/alg.nonmodifying/mismatch/mismatch.pass.cpp
View File

@ -28,39 +28,26 @@ int main()
int ia[] = {0, 1, 2, 2, 0, 1, 2, 3};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
int ib[] = {0, 1, 2, 3, 0, 1, 2, 3};
assert(std::mismatch(input_iterator<const int*>(ia),
input_iterator<const int*>(ia + sa),
input_iterator<const int*>(ib)) ==
(std::pair<input_iterator<const int*>,
input_iterator<const int*> >(
input_iterator<const int*>(ia+3),
input_iterator<const int*>(ib+3))));
const unsigned sb = sizeof(ib)/sizeof(ib[0]);
assert(std::mismatch(comma_iterator<const int*>(ia),
comma_iterator<const int*>(ia + sa),
comma_iterator<const int*>(ib)) ==
(std::pair<comma_iterator<const int*>,
comma_iterator<const int*> >(
comma_iterator<const int*>(ia+3),
comma_iterator<const int*>(ib+3))));
typedef input_iterator<const int*> II;
typedef random_access_iterator<const int*> RAI;
assert(std::mismatch(II(ia), II(ia + sa), II(ib))
== (std::pair<II, II>(II(ia+3), II(ib+3))));
assert(std::mismatch(RAI(ia), RAI(ia + sa), RAI(ib))
== (std::pair<RAI, RAI>(RAI(ia+3), RAI(ib+3))));
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::mismatch(input_iterator<const int*>(ia),
input_iterator<const int*>(ia + sa),
input_iterator<const int*>(ib),
input_iterator<const int*>(ib + sa)) ==
(std::pair<input_iterator<const int*>,
input_iterator<const int*> >(
input_iterator<const int*>(ia+3),
input_iterator<const int*>(ib+3))));
assert(std::mismatch(II(ia), II(ia + sa), II(ib), II(ib+sb))
== (std::pair<II, II>(II(ia+3), II(ib+3))));
assert(std::mismatch(input_iterator<const int*>(ia),
input_iterator<const int*>(ia + sa),
input_iterator<const int*>(ib),
input_iterator<const int*>(ib + 2)) ==
(std::pair<input_iterator<const int*>,
input_iterator<const int*> >(
input_iterator<const int*>(ia+2),
input_iterator<const int*>(ib+2))));
assert(std::mismatch(RAI(ia), RAI(ia + sa), RAI(ib), II(ib+sb))
== (std::pair<RAI, RAI>(RAI(ia+3), RAI(ib+3)))));
assert(std::mismatch(II(ia), II(ia + sa), II(ib), II(ib+2))
== (std::pair<II, II>(II(ia+2), II(ib+2))));
#endif
}

58
test/algorithms/alg.nonmodifying/mismatch/mismatch_pred.pass.cpp
View File

@ -20,6 +20,7 @@
#include <cassert>
#include "test_iterators.h"
#include "counting_predicates.hpp"
#if _LIBCPP_STD_VER > 11
#define HAS_FOUR_ITERATOR_VERSION
@ -31,40 +32,41 @@ int main()
int ia[] = {0, 1, 2, 2, 0, 1, 2, 3};
const unsigned sa = sizeof(ia)/sizeof(ia[0]);
int ib[] = {0, 1, 2, 3, 0, 1, 2, 3};
assert(std::mismatch(input_iterator<const int*>(ia),
input_iterator<const int*>(ia + sa),
input_iterator<const int*>(ib),
std::equal_to<int>()) ==
(std::pair<input_iterator<const int*>,
input_iterator<const int*> >(
input_iterator<const int*>(ia+3),
input_iterator<const int*>(ib+3))));
assert(std::mismatch(comma_iterator<const int*>(ia),
comma_iterator<const int*>(ia + sa),
comma_iterator<const int*>(ib),
std::equal_to<int>()) ==
(std::pair<comma_iterator<const int*>,
comma_iterator<const int*> >(
comma_iterator<const int*>(ia+3),
comma_iterator<const int*>(ib+3))));
const unsigned sb = sizeof(ib)/sizeof(ib[0]);
typedef input_iterator<const int*> II;
typedef random_access_iterator<const int*> RAI;
typedef std::equal_to<int> EQ;
assert(std::mismatch(II(ia), II(ia + sa), II(ib), EQ())
== (std::pair<II, II>(II(ia+3), II(ib+3))));
assert(std::mismatch(RAI(ia), RAI(ia + sa), RAI(ib), EQ())
== (std::pair<RAI, RAI>(RAI(ia+3), RAI(ib+3))));
binary_counting_predicate<EQ, int> bcp((EQ()));
assert(std::mismatch(RAI(ia), RAI(ia + sa), RAI(ib), std::ref(bcp))
== (std::pair<RAI, RAI>(RAI(ia+3), RAI(ib+3))));
assert(bcp.count() > 0 && bcp.count() < sa);
bcp.reset();
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::mismatch(input_iterator<const int*>(ia),
input_iterator<const int*>(ia + sa),
input_iterator<const int*>(ib),
input_iterator<const int*>(ib + sa),
std::equal_to<int>()) ==
(std::pair<input_iterator<const int*>,
input_iterator<const int*> >(
input_iterator<const int*>(ia+3),
input_iterator<const int*>(ib+3))));
assert(std::mismatch(II(ia), II(ia + sa), II(ib), II(ib + sb), EQ())
== (std::pair<II, II>(II(ia+3), II(ib+3))));
assert(std::mismatch(RAI(ia), RAI(ia + sa), RAI(ib), RAI(ib + sb), EQ())
== (std::pair<RAI, RAI>(RAI(ia+3), RAI(ib+3))));
assert(std::mismatch(II(ia), II(ia + sa), II(ib), II(ib + sa), bcp)
== (std::pair<II, II>(II(ia+3), II(ib+3))));
assert(bcp.count() > 0 && bcp.count() < std::min(sa, sb));
#endif
assert(std::mismatch(ia, ia + sa, ib, std::equal_to<int>()) ==
assert(std::mismatch(ia, ia + sa, ib, EQ()) ==
(std::pair<int*,int*>(ia+3,ib+3)));
#ifdef HAS_FOUR_ITERATOR_VERSION
assert(std::mismatch(ia, ia + sa, ib, ib + sa, std::equal_to<int>()) ==
assert(std::mismatch(ia, ia + sa, ib, ib + sb, EQ()) ==
(std::pair<int*,int*>(ia+3,ib+3)));
assert(std::mismatch(ia, ia + sa, ib, ib + 2, std::equal_to<int>()) ==
assert(std::mismatch(ia, ia + sa, ib, ib + 2, EQ()) ==
(std::pair<int*,int*>(ia+2,ib+2)));
#endif
}