integral.roundtrip.pass.cpp
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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
// UNSUPPORTED: !libc++ && c++11
// UNSUPPORTED: !libc++ && c++14
// The roundtrip test uses to_chars, which requires functions in the dylib
// that were introduced in Mac OS 10.15.
//
// XFAIL: with_system_cxx_lib=macosx10.14
// XFAIL: with_system_cxx_lib=macosx10.13
// XFAIL: with_system_cxx_lib=macosx10.12
// XFAIL: with_system_cxx_lib=macosx10.11
// XFAIL: with_system_cxx_lib=macosx10.10
// XFAIL: with_system_cxx_lib=macosx10.9
// <charconv>
// 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;
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;
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);
}
}
};
int main(int, char**)
{
run<test_basics>(integrals);
run<test_signed>(all_signed);
return 0;
}