IABSD.fr/xenocara/lib/mesa/include/no_extern_c.h

Branch : - branch - master - tag -

• Show log

  Commit

• Author : jsg
  Date : 2021-07-22 09:57:37
  Hash : f849497a
  Message : Import Mesa 21.1.5

• lib/mesa/include/no_extern_c.h

• /**************************************************************************
   *
   * Copyright 2014 VMware, Inc.
   * All Rights Reserved.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included
   * in all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
   * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
   * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
   * OTHER DEALINGS IN THE SOFTWARE.
   *
   **************************************************************************/
  
  
  /*
   * Including system's headers inside `extern "C" { ... }` is not safe, as system
   * headers may have C++ code in them, and C++ code inside extern "C"
   * leads to syntactically incorrect code.
   *
   * This is because putting code inside extern "C" won't make __cplusplus define
   * go away, that is, the system header being included thinks is free to use C++
   * as it sees fits.
   *
   * Including non-system headers inside extern "C"  is not safe either, because
   * non-system headers end up including system headers, hence fall in the above
   * case too.
   *
   * Conclusion, includes inside extern "C" is simply not portable.
   *
   *
   * This header helps surface these issues.
   */
  
  #ifdef __cplusplus
  template<class T> class _IncludeInsideExternCNotPortable;
  #endif