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//===----------------------------------------------------------------------===//
//
// 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_view>
// constexpr basic_string_view(const _CharT* _s)
// : __data (_s), __size(_Traits::length(_s)) {}
#include <experimental/string_view>
#include <string>
#include <cassert>
#include "constexpr_char_traits.hpp"
template<typename CharT>
size_t StrLen ( const CharT *s ) {
size_t retVal = 0;
while ( *s != 0 ) { ++retVal; ++s; }
return retVal;
}
template<typename CharT>
void test ( const CharT *s ) {
std::experimental::basic_string_view<CharT> sv1 ( s );
assert ( sv1.size() == StrLen( s ));
assert ( sv1.data() == s );
}
int main () {
test ( "QBCDE" );
test ( "A" );
test ( "" );
test ( L"QBCDE" );
test ( L"A" );
test ( L"" );
#if __cplusplus >= 201103L
test ( u"QBCDE" );
test ( u"A" );
test ( u"" );
test ( U"QBCDE" );
test ( U"A" );
test ( U"" );
#endif
#if _LIBCPP_STD_VER > 11
{
constexpr std::experimental::basic_string_view<char, constexpr_char_traits<char>> sv1 ( "ABCDE" );
static_assert ( sv1.size() == 5, "");
}
#endif
}
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