Files
cxx/test/std/utilities/template.bitset/bitset.members/flip_one.pass.cpp
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

62 lines
1.3 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
// test bitset<N>& flip(size_t pos);
#include <bitset>
#include <cstdlib>
#include <cassert>
#pragma clang diagnostic ignored "-Wtautological-compare"
template <std::size_t N>
std::bitset<N>
make_bitset()
{
std::bitset<N> v;
for (std::size_t i = 0; i < N; ++i)
v[i] = static_cast<bool>(std::rand() & 1);
return v;
}
template <std::size_t N>
void test_flip_one()
{
std::bitset<N> v = make_bitset<N>();
try
{
v.flip(50);
bool b = v[50];
if (50 >= v.size())
assert(false);
assert(v[50] == b);
v.flip(50);
assert(v[50] != b);
v.flip(50);
assert(v[50] == b);
}
catch (std::out_of_range&)
{
}
}
int main()
{
test_flip_one<0>();
test_flip_one<1>();
test_flip_one<31>();
test_flip_one<32>();
test_flip_one<33>();
test_flip_one<63>();
test_flip_one<64>();
test_flip_one<65>();
test_flip_one<1000>();
}