Revision control
Copy as Markdown
Other Tools
/**************************************************************************
*
* 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 syntatically 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