blob: 4f320ea30941d6dabe4d035a1fdfaca45d248545 [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// 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>
// 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("-0") == 0);
assert(std::stof("-10") == -10);
assert(std::stof(" 10") == 10);
{
size_t idx = 0;
assert(std::stof("10g", &idx) == 10);
assert(idx == 2);
}
{
size_t idx = 0;
assert(std::stof("INF", &idx) == INFINITY);
assert(idx == 3);
}
{
size_t idx = 0;
assert(std::isnan(std::stof("NAN", &idx)));
assert(idx == 3);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
{
size_t idx = 0;
try {
assert(std::stof("1.e60", &idx) == INFINITY);
assert(false);
} catch (const std::out_of_range&) {
assert(idx == 0);
}
}
{
size_t idx = 0;
try {
assert(std::stof("1.e360", &idx) == INFINITY);
assert(false);
} catch (const std::out_of_range&) {
assert(idx == 0);
}
}
{
size_t idx = 0;
try {
std::stof("", &idx);
assert(false);
} catch (const std::invalid_argument&) {
assert(idx == 0);
}
}
{
size_t idx = 0;
try {
std::stof(" - 8", &idx);
assert(false);
} catch (const std::invalid_argument&) {
assert(idx == 0);
}
}
{
size_t idx = 0;
try {
std::stof("a1", &idx);
assert(false);
} catch (const std::invalid_argument&) {
assert(idx == 0);
}
}
#endif // TEST_HAS_NO_EXCEPTIONS
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
assert(std::stof(L"0") == 0);
assert(std::stof(L"-0") == 0);
assert(std::stof(L"-10.5") == -10.5);
assert(std::stof(L" 10") == 10);
{
size_t idx = 0;
assert(std::stof(L"10g", &idx) == 10);
assert(idx == 2);
}
{
size_t idx = 0;
assert(std::stof(L"INF", &idx) == INFINITY);
assert(idx == 3);
}
{
size_t idx = 0;
assert(std::isnan(std::stof(L"NAN", &idx)));
assert(idx == 3);
}
#ifndef TEST_HAS_NO_EXCEPTIONS
{
size_t idx = 0;
try {
assert(std::stof(L"1.e60", &idx) == INFINITY);
assert(false);
} catch (const std::out_of_range&) {
assert(idx == 0);
}
}
{
size_t idx = 0;
try {
assert(std::stof(L"1.e360", &idx) == INFINITY);
assert(false);
} catch (const std::out_of_range&) {
assert(idx == 0);
}
}
{
size_t idx = 0;
try {
std::stof(L"", &idx);
assert(false);
} catch (const std::invalid_argument&) {
assert(idx == 0);
}
}
{
size_t idx = 0;
try {
std::stof(L" - 8", &idx);
assert(false);
} catch (const std::invalid_argument&) {
assert(idx == 0);
}
}
{
size_t idx = 0;
try {
std::stof(L"a1", &idx);
assert(false);
} catch (const std::invalid_argument&) {
assert(idx == 0);
}
}
#endif // TEST_HAS_NO_EXCEPTIONS
#endif // TEST_HAS_NO_WIDE_CHARACTERS
return 0;
}