Eric Fiselier f2f2a6395f Replace __cplusplus comparisons and dialect __has_feature checks with TEST_STD_VER.
This is a huge cleanup that helps make the libc++ test suite more portable.
Patch from STL@microsoft.com. Thanks STL!

llvm-svn: 272716
2016-06-14 21:31:42 +00:00

33 lines
946 B
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.
//
//===----------------------------------------------------------------------===//
// <string>
// template<> struct char_traits<char16_t>
// static size_t length(const char_type* s);
#include <string>
#include <cassert>
#include "test_macros.h"
int main()
{
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
#if TEST_STD_VER >= 11
assert(std::char_traits<char16_t>::length(u"") == 0);
assert(std::char_traits<char16_t>::length(u"a") == 1);
assert(std::char_traits<char16_t>::length(u"aa") == 2);
assert(std::char_traits<char16_t>::length(u"aaa") == 3);
assert(std::char_traits<char16_t>::length(u"aaaa") == 4);
#endif
#endif // _LIBCPP_HAS_NO_UNICODE_CHARS
}