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#include "fast_float/fast_float.h"
#include <iostream>
#include <string>
#include <system_error>
template <typename UC> bool test(std::string s, double expected) {
std::basic_string<UC> input(s.begin(), s.end());
double result;
auto answer =
fast_float::from_chars(input.data(), input.data() + input.size(), result);
if (answer.ec != std::errc()) {
std::cerr << "parsing of \"" << s << "\" should succeed\n";
return false;
}
if (result != expected && !(std::isnan(result) && std::isnan(expected))) {
std::cerr << "parsing of \"" << s << "\" succeeded, expected " << expected
<< " got " << result << "\n";
return false;
}
return true;
}
int main() {
if (!test<char>("4.2", 4.2)) {
std::cout << "test failure for char" << std::endl;
return EXIT_FAILURE;
}
if (!test<wchar_t>("4.2", 4.2)) {
std::cout << "test failure for wchar_t" << std::endl;
return EXIT_FAILURE;
}
#ifdef __cpp_char8_t
if (!test<char8_t>("4.2", 4.2)) {
std::cout << "test failure for char8_t" << std::endl;
return EXIT_FAILURE;
}
#endif
if (!test<char16_t>("4.2", 4.2)) {
std::cout << "test failure for char16_t" << std::endl;
return EXIT_FAILURE;
}
if (!test<char32_t>("4.2", 4.2)) {
std::cout << "test failure for char32_t" << std::endl;
return EXIT_FAILURE;
}
std::cout << "all ok" << std::endl;
return EXIT_SUCCESS;
}
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