61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
#ifndef UTIL_H
|
|
#define UTIL_H
|
|
|
|
#include <stringconv.h>
|
|
#include <expected>
|
|
#include <chrono>
|
|
|
|
namespace util{
|
|
|
|
template <typename T>
|
|
inline std::expected<std::string, std::string> to_string(T value)
|
|
{
|
|
if constexpr (std::is_same_v<T, int> || std::is_same_v<T, float> || std::is_same_v<T, double>)
|
|
{
|
|
char buffer[buffer_size];
|
|
auto res = std::to_chars(buffer, buffer + buffer_size, value);
|
|
if (res.ec != std::errc())
|
|
{
|
|
return std::unexpected(std::make_error_code(res.ec).message());
|
|
}
|
|
return std::string(buffer, res.ptr - buffer);
|
|
}
|
|
else if constexpr (std::is_same_v<typename std::remove_const<T>::type,
|
|
char *>)
|
|
{
|
|
return std::to_string(value);
|
|
}
|
|
}
|
|
|
|
template <typename T = double> // requires std::is_same_v<T, std::string>
|
|
inline std::expected<T, std::string> stoi(const std::string &str)
|
|
{
|
|
T value;
|
|
auto res = std::from_chars(str.c_str(), str.c_str() + str.size(), value);
|
|
if (res.ec != std::errc())
|
|
{
|
|
return std::unexpected(std::make_error_code(res.ec).message());
|
|
}
|
|
return value;
|
|
}
|
|
|
|
inline std::string get_time_now(){
|
|
auto time_now = std::chrono::system_clock::now();
|
|
auto now_c = std::chrono::system_clock::to_time_t(time_now);
|
|
char buffer[32];
|
|
#if defined(_WIN32) || defined(_WIN64)
|
|
auto _ = ctime_s(buffer, 32, &now_c);
|
|
#elif defined(__linux__)
|
|
auto _ = ctime_r(&now_c, buffer);
|
|
#endif
|
|
auto result = std::string(buffer);
|
|
result = string::replace_string(result, "\n", "");
|
|
return std::move(result);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
#endif
|