Asiri Rathnayake cc2e93cff0 Make it possible to build a no-exceptions variant of libcxx.
Fixes a small omission in libcxx that prevents libcxx being built when
-DLIBCXX_ENABLE_EXCEPTIONS=0 is specified.

This patch adds XFAILS to all those tests that are currently failing
on the new -fno-exceptions library variant. Follow-up patches will
update the tests (progressively) to cope with the new library variant.

Change-Id: I4b801bd8d8e4fe7193df9e55f39f1f393a8ba81a

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@252598 91177308-0d34-0410-b5e6-96231b3b80d8
2015-11-10 11:41:22 +00:00

119 lines
2.0 KiB
C++

//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// XFAIL: libcpp-no-exceptions
// <string>
// void reserve(size_type res_arg=0);
#include <string>
#include <stdexcept>
#include <cassert>
#include "min_allocator.h"
template <class S>
void
test(S s)
{
typename S::size_type old_cap = s.capacity();
S s0 = s;
s.reserve();
assert(s.__invariants());
assert(s == s0);
assert(s.capacity() <= old_cap);
assert(s.capacity() >= s.size());
}
template <class S>
void
test(S s, typename S::size_type res_arg)
{
typename S::size_type old_cap = s.capacity();
S s0 = s;
try
{
s.reserve(res_arg);
assert(res_arg <= s.max_size());
assert(s == s0);
assert(s.capacity() >= res_arg);
assert(s.capacity() >= s.size());
}
catch (std::length_error&)
{
assert(res_arg > s.max_size());
}
}
int main()
{
{
typedef std::string S;
{
S s;
test(s);
s.assign(10, 'a');
s.erase(5);
test(s);
s.assign(100, 'a');
s.erase(50);
test(s);
}
{
S s;
test(s, 5);
test(s, 10);
test(s, 50);
}
{
S s(100, 'a');
s.erase(50);
test(s, 5);
test(s, 10);
test(s, 50);
test(s, 100);
test(s, S::npos);
}
}
#if __cplusplus >= 201103L
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
{
S s;
test(s);
s.assign(10, 'a');
s.erase(5);
test(s);
s.assign(100, 'a');
s.erase(50);
test(s);
}
{
S s;
test(s, 5);
test(s, 10);
test(s, 50);
}
{
S s(100, 'a');
s.erase(50);
test(s, 5);
test(s, 10);
test(s, 50);
test(s, 100);
test(s, S::npos);
}
}
#endif
}