39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
#pragma once
|
|
|
|
/**
|
|
* \file Format.h
|
|
* \brief This file contains the definition of the `Format` function.
|
|
*/
|
|
|
|
#include <memory>
|
|
#include <stdexcept>
|
|
#include <string>
|
|
|
|
namespace td {
|
|
namespace utils {
|
|
|
|
/**
|
|
* \brief Formats a string using a format string and variadic arguments.
|
|
*
|
|
* This function takes a format string and a variable number of arguments and returns a formatted string.
|
|
* The format string can contain placeholders that will be replaced by the corresponding arguments.
|
|
*
|
|
* \param format The format string.
|
|
* \param args The variadic arguments to be formatted.
|
|
* \return The formatted string.
|
|
* \throws std::runtime_error if an error occurs during formatting.
|
|
*/
|
|
template <typename... Args>
|
|
std::string Format(const std::string& format, Args... args) {
|
|
int size = snprintf(nullptr, 0, format.c_str(), args...) + 1; // Extra space for '\0'
|
|
if (size <= 0) {
|
|
throw std::runtime_error("Error during formatting.");
|
|
}
|
|
std::unique_ptr<char[]> buf(new char[size]);
|
|
snprintf(buf.get(), static_cast<std::size_t>(size), format.c_str(), args...);
|
|
return std::string(buf.get(), buf.get() + size - 1); // We don't want the '\0' inside
|
|
}
|
|
|
|
} // namespace utils
|
|
} // namespace td
|