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//===----------------------------------------------------------------------===//
//
// 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>
// bool operator<(const charT* lhs, const basic_string<charT,traits,Allocator>& rhs); // constexpr since C++20
#include <string>
#include <cassert>
#include "test_macros.h"
#include "min_allocator.h"
template <class S>
TEST_CONSTEXPR_CXX20 void
test(const typename S::value_type* lhs, const S& rhs, bool x)
{
assert((lhs < rhs) == x);
}
TEST_CONSTEXPR_CXX20 bool test() {
{
typedef std::string S;
test("", S(""), false);
test("", S("abcde"), true);
test("", S("abcdefghij"), true);
test("", S("abcdefghijklmnopqrst"), true);
test("abcde", S(""), false);
test("abcde", S("abcde"), false);
test("abcde", S("abcdefghij"), true);
test("abcde", S("abcdefghijklmnopqrst"), true);
test("abcdefghij", S(""), false);
test("abcdefghij", S("abcde"), false);
test("abcdefghij", S("abcdefghij"), false);
test("abcdefghij", S("abcdefghijklmnopqrst"), true);
test("abcdefghijklmnopqrst", S(""), false);
test("abcdefghijklmnopqrst", S("abcde"), false);
test("abcdefghijklmnopqrst", S("abcdefghij"), false);
test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), false);
}
#if TEST_STD_VER >= 11
{
typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
test("", S(""), false);
test("", S("abcde"), true);
test("", S("abcdefghij"), true);
test("", S("abcdefghijklmnopqrst"), true);
test("abcde", S(""), false);
test("abcde", S("abcde"), false);
test("abcde", S("abcdefghij"), true);
test("abcde", S("abcdefghijklmnopqrst"), true);
test("abcdefghij", S(""), false);
test("abcdefghij", S("abcde"), false);
test("abcdefghij", S("abcdefghij"), false);
test("abcdefghij", S("abcdefghijklmnopqrst"), true);
test("abcdefghijklmnopqrst", S(""), false);
test("abcdefghijklmnopqrst", S("abcde"), false);
test("abcdefghijklmnopqrst", S("abcdefghij"), false);
test("abcdefghijklmnopqrst", S("abcdefghijklmnopqrst"), false);
}
#endif
return true;
}
int main(int, char**)
{
test();
#if TEST_STD_VER > 17
static_assert(test());
#endif
return 0;
}
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