74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// <string>
|
|
|
|
// template<class charT, class traits, class Allocator>
|
|
// constexpr bool operator<(const charT* lhs, basic_string_view<charT,traits> rhs);
|
|
// template<class charT, class traits, class Allocator>
|
|
// constexpr bool operator<(basic_string_view<charT,traits> lhs, const charT* rhs);
|
|
|
|
#include <string_view>
|
|
#include <cassert>
|
|
|
|
#include "test_macros.h"
|
|
#include "constexpr_char_traits.h"
|
|
|
|
template <class S>
|
|
void
|
|
test(const typename S::value_type* lhs, const S& rhs, bool x, bool y)
|
|
{
|
|
assert((lhs < rhs) == x);
|
|
assert((rhs < lhs) == y);
|
|
}
|
|
|
|
int main(int, char**)
|
|
{
|
|
{
|
|
typedef std::string_view S;
|
|
test("", S(""), false, false);
|
|
test("", S("abcde"), true, false);
|
|
test("", S("abcdefghij"), true, false);
|
|
test("", S("abcdefghijklmnopqrst"), true, false);
|
|
test("abcde", S(""), false, true);
|
|
test("abcde", S("abcde"), false, false);
|
|
test("abcde", S("abcdefghij"), true, false);
|
|
test("abcde", S("abcdefghijklmnopqrst"), true, false);
|
|
test("abcdefghij", S(""), false, true);
|
|
test("abcdefghij", S("abcde"), false, true);
|
|
test("abcdefghij", S("abcdefghij"), false, false);
|
|
test("abcdefghij", S("abcdefghijklmnopqrst"), true, false);
|
|
test("abcdefghijklmnopqrst", S(""), false, true);
|
|
test("abcdefghijklmnopqrst", S("abcde"), false, true);
|
|
test("abcdefghijklmnopqrst", S("abcdefghij"), false, true);
|
|
test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), false, false);
|
|
}
|
|
|
|
#if TEST_STD_VER > 11
|
|
{
|
|
typedef std::basic_string_view<char, constexpr_char_traits<char>> SV;
|
|
constexpr SV sv1;
|
|
constexpr SV sv2 { "abcde", 5 };
|
|
|
|
static_assert (!(sv1 < ""), "" );
|
|
static_assert (!("" < sv1), "" );
|
|
static_assert ( sv1 < "abcde", "" );
|
|
static_assert (!("abcde" < sv1), "" );
|
|
|
|
static_assert (!(sv2 < ""), "" );
|
|
static_assert ( "" < sv2, "" );
|
|
static_assert (!(sv2 < "abcde"), "" );
|
|
static_assert (!("abcde" < sv2), "" );
|
|
static_assert ( sv2 < "abcde0", "" );
|
|
static_assert (!("abcde0" < sv2), "" );
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|