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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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14
// ADDITIONAL_COMPILE_FLAGS(has-fconstexpr-steps): -fconstexpr-steps=12712420
// <charconv>
// constexpr from_chars_result from_chars(const char* first, const char* last,
// Integral& value, int base = 10)
#include <charconv>
#include "test_macros.h"
#include "charconv_test_helpers.h"
template <typename T>
struct test_basics : roundtrip_test_base<T>
{
using roundtrip_test_base<T>::test;
TEST_CONSTEXPR_CXX23 void operator()()
{
test(0);
test(42);
test(32768);
test(0, 10);
test(42, 10);
test(32768, 10);
test(0xf, 16);
test(0xdeadbeaf, 16);
test(0755, 8);
for (int b = 2; b < 37; ++b)
{
using xl = std::numeric_limits<T>;
test(1, b);
test(-1, b);
test(xl::lowest(), b);
test((xl::max)(), b);
test((xl::max)() / 2, b);
}
}
};
template <typename T>
struct test_signed : roundtrip_test_base<T>
{
using roundtrip_test_base<T>::test;
TEST_CONSTEXPR_CXX23 void operator()()
{
test(-1);
test(-12);
test(-1, 10);
test(-12, 10);
test(-21734634, 10);
test(-2647, 2);
test(-0xcc1, 16);
for (int b = 2; b < 37; ++b)
{
using xl = std::numeric_limits<T>;
test(0, b);
test(xl::lowest(), b);
test((xl::max)(), b);
}
}
};
TEST_CONSTEXPR_CXX23 bool test()
{
run<test_basics>(integrals);
run<test_signed>(all_signed);
return true;
}
int main(int, char**) {
test();
#if TEST_STD_VER > 20
static_assert(test());
#endif
return 0;
}
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