.. _program_listing_file_mcfp_utilities.hpp:

Program Listing for File utilities.hpp
======================================

|exhale_lsh| :ref:`Return to documentation for file <file_mcfp_utilities.hpp>` (``mcfp/utilities.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   /*-
    * SPDX-License-Identifier: BSD-2-Clause
    *
    * Copyright (c) 2022 Maarten L. Hekkelman
    *
    * Redistribution and use in source and binary forms, with or without
    * modification, are permitted provided that the following conditions are met:
    *
    * 1. Redistributions of source code must retain the above copyright notice, this
    *    list of conditions and the following disclaimer
    * 2. Redistributions in binary form must reproduce the above copyright notice,
    *    this list of conditions and the following disclaimer in the documentation
    *    and/or other materials provided with the distribution.
    *
    * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
    * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
    * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
    * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
    * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    */
   
   #pragma once
   
   #include <climits>
   #include <cstdint>
   
   #if __has_include(<sys/ioctl.h>)
   #include <sys/ioctl.h>
   #include <fcntl.h>
   #include <unistd.h>
   #elif defined(_WIN32)
   #include <windows.h>
   #endif
   
   namespace mcfp
   {
   
   #if defined(_WIN32)
   inline uint32_t get_terminal_width()
   {
       CONSOLE_SCREEN_BUFFER_INFO csbi;
       ::GetConsoleScreenBufferInfo(::GetStdHandle(STD_OUTPUT_HANDLE), &csbi);
       return csbi.srWindow.Right - csbi.srWindow.Left + 1;
   }
   
   #elif __has_include(<sys/ioctl.h>)
   inline uint32_t get_terminal_width()
   {
       uint32_t result = 80;
   
       if (::isatty(STDOUT_FILENO))
       {
           struct winsize w;
           ::ioctl(0, TIOCGWINSZ, &w);
           result = w.ws_col;
       }
       return result;
   }
   #else
   #warning "Could not find the terminal width, falling back to default"
   inline uint32_t get_terminal_width()
   {
       return 80;
   }
   #endif
   
   } // namespace mcfp