stof.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
//
//===----------------------------------------------------------------------===//
//
// PR14919 was fixed in r172447, out_of_range wasn't thrown before.
// XFAIL: with_system_cxx_lib=macosx10.7
// XFAIL: with_system_cxx_lib=macosx10.8
// <string>
// float stof(const string& str, size_t *idx = 0);
// float stof(const wstring& str, size_t *idx = 0);
#include <string>
#include <cmath>
#include <cassert>
#include <stdexcept>
#include "test_macros.h"
int main(int, char**)
{
assert(std::stof("0") == 0);
assert(std::stof(L"0") == 0);
assert(std::stof("-0") == 0);
assert(std::stof(L"-0") == 0);
assert(std::stof("-10") == -10);
assert(std::stof(L"-10.5") == -10.5);
assert(std::stof(" 10") == 10);
assert(std::stof(L" 10") == 10);
size_t idx = 0;
assert(std::stof("10g", &idx) == 10);
assert(idx == 2);
idx = 0;
assert(std::stof(L"10g", &idx) == 10);
assert(idx == 2);
#ifndef TEST_HAS_NO_EXCEPTIONS
idx = 0;
try
{
assert(std::stof("1.e60", &idx) == INFINITY);
assert(false);
}
catch (const std::out_of_range&)
{
assert(idx == 0);
}
try
{
assert(std::stof(L"1.e60", &idx) == INFINITY);
assert(false);
}
catch (const std::out_of_range&)
{
assert(idx == 0);
}
idx = 0;
try
{
assert(std::stof("1.e360", &idx) == INFINITY);
assert(false);
}
catch (const std::out_of_range&)
{
assert(idx == 0);
}
try
{
assert(std::stof(L"1.e360", &idx) == INFINITY);
assert(false);
}
catch (const std::out_of_range&)
{
assert(idx == 0);
}
try
#endif
{
assert(std::stof("INF", &idx) == INFINITY);
assert(idx == 3);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
catch (const std::out_of_range&)
{
assert(false);
}
#endif
idx = 0;
#ifndef TEST_HAS_NO_EXCEPTIONS
try
#endif
{
assert(std::stof(L"INF", &idx) == INFINITY);
assert(idx == 3);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
catch (const std::out_of_range&)
{
assert(false);
}
#endif
idx = 0;
#ifndef TEST_HAS_NO_EXCEPTIONS
try
#endif
{
assert(std::isnan(std::stof("NAN", &idx)));
assert(idx == 3);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
catch (const std::out_of_range&)
{
assert(false);
}
#endif
idx = 0;
#ifndef TEST_HAS_NO_EXCEPTIONS
try
#endif
{
assert(std::isnan(std::stof(L"NAN", &idx)));
assert(idx == 3);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
catch (const std::out_of_range&)
{
assert(false);
}
idx = 0;
try
{
std::stof("", &idx);
assert(false);
}
catch (const std::invalid_argument&)
{
assert(idx == 0);
}
try
{
std::stof(L"", &idx);
assert(false);
}
catch (const std::invalid_argument&)
{
assert(idx == 0);
}
try
{
std::stof(" - 8", &idx);
assert(false);
}
catch (const std::invalid_argument&)
{
assert(idx == 0);
}
try
{
std::stof(L" - 8", &idx);
assert(false);
}
catch (const std::invalid_argument&)
{
assert(idx == 0);
}
try
{
std::stof("a1", &idx);
assert(false);
}
catch (const std::invalid_argument&)
{
assert(idx == 0);
}
try
{
std::stof(L"a1", &idx);
assert(false);
}
catch (const std::invalid_argument&)
{
assert(idx == 0);
}
#endif
return 0;
}