format.h

Go to the documentation of this file.

/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          https://www.mrpt.org/                         |
   |                                                                        |
   | Copyright (c) 2005-2020, Individual contributors, see AUTHORS file     |
   | See: https://www.mrpt.org/Authors - All rights reserved.               |
   | Released under BSD License. See: https://www.mrpt.org/License          |
   +------------------------------------------------------------------------+ */

#pragma once

#include <mrpt/core/common.h>
#include <string>

/** This is the global namespace for all Mobile Robot Programming Toolkit (MRPT)
 * libraries. */
namespace mrpt
{
/** A std::string version of C sprintf.
 *  You can call this to obtain a std::string using printf-like syntax.
 * \ingroup mrpt_core_grp
 */
std::string format_impl(const char* fmt, ...) MRPT_printf_format_check(1, 2);

template <typename... ARGS>
std::string format(std::string_view fmt, ARGS&&... args)
{
    return format_impl(fmt.data(), std::forward<ARGS>(args)...);
}

/** Just like std::to_string(), but with an overloaded version
 * for std::string arguments.
 * \ingroup mrpt_core_grp
 */
template <typename T>
std::string to_string(T v)
{
    return std::to_string(v);
}
template <>
inline std::string to_string<>(std::string v)
{
    return v;
}
template <>
inline std::string to_string<>(bool v)
{
    return v ? "true" : "false";
}
template <>
inline std::string to_string<>(const char* s)
{
    return std::string(s);
}
}  // namespace mrpt