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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& operator=(const basic_string_view &) noexcept = default;
#include <string_view>
#include <cassert>
#include "test_macros.h"
template<typename T>
#if TEST_STD_VER > 11
constexpr
#endif
bool test (T sv0)
{
T sv1;
sv1 = sv0;
// We can't just say "sv0 == sv1" here because string_view::compare
// isn't constexpr until C++17, and we want to support back to C++14
return sv0.size() == sv1.size() && sv0.data() == sv1.data();
}
int main () {
assert( test<std::string_view> ( "1234"));
#if TEST_STD_VER >= 11
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
assert( test<std::u16string_view> (u"1234"));
assert( test<std::u32string_view> (U"1234"));
#endif
#endif
assert( test<std::wstring_view> (L"1234"));
#if TEST_STD_VER > 11
static_assert( test<std::string_view> ({ "abc", 3}), "");
#ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
static_assert( test<std::u16string_view> ({u"abc", 3}), "");
static_assert( test<std::u32string_view> ({U"abc", 3}), "");
#endif
static_assert( test<std::wstring_view> ({L"abc", 3}), "");
#endif
}
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