gcc/libstdc++-v3/testsuite/20_util/hash/89629.cc
Jonathan Wakely 1a823c9ae9 PR libstdc++/89629 fix _Hash_bytes for lengths > INT_MAX
PR libstdc++/89629
	* libsupc++/hash_bytes.cc [__SIZEOF_SIZE_T__ == 8] (_Hash_bytes):
	Use correct type for len_aligned.
	* testsuite/20_util/hash/89629.cc: New test.

From-SVN: r269584
2019-03-11 13:46:05 +00:00

44 lines
1.2 KiB
C++

// Copyright (C) 2019 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// { dg-do run { target { lp64 || llp64 } } }
// { dg-require-effective-target c++11 }
// { dg-require-effective-target run_expensive_tests }
#include <functional>
#include <string>
void
test01()
{
const std::size_t big = std::size_t(1) << 31;
std::string s;
try {
s.resize(big, 'a');
} catch (const std::bad_alloc&) {
return; // try to avoid a FAIL if memory allocation fails
}
// PR libstdc++/89629
(void) std::hash<std::string>{}(s);
}
int
main()
{
test01();
}