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

75 lines
1.7 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>
// size_type max_size() const;
// NOTE: asan and msan will fail for one of two reasons
// 1. If allocator_may_return_null=0 then they will fail because the allocation
// returns null.
// 2. If allocator_may_return_null=1 then they will fail because the allocation
// is too large to succeed.
// UNSUPPORTED: sanitizer-new-delete
#include <string>
#include <cassert>
#include "min_allocator.h"
template <class S>
void
test1(const S& s)
{
S s2(s);
const size_t sz = s2.max_size() - 1;
try { s2.resize(sz, 'x'); }
catch ( const std::bad_alloc & ) { return ; }
assert ( s2.size() == sz );
}
template <class S>
void
test2(const S& s)
{
S s2(s);
const size_t sz = s2.max_size();
try { s2.resize(sz, 'x'); }
catch ( const std::bad_alloc & ) { return ; }
assert ( s.size() == sz );
}
template <class S>
void
test(const S& s)
{
assert(s.max_size() >= s.size());
test1(s);
test2(s);
}
int main()
{
{
typedef std::string S;
test(S());
test(S("123"));
test(S("12345678901234567890123456789012345678901234567890"));
}
#if __cplusplus >= 201103L
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
test(S());
test(S("123"));
test(S("12345678901234567890123456789012345678901234567890"));
}
#endif
}