1  /* Wrappers that don't throw invalid parameter notifications
       2     with MSVC runtime libraries.
       3     Copyright (C) 2011-2023 Free Software Foundation, Inc.
       4  
       5     This file is free software: you can redistribute it and/or modify
       6     it under the terms of the GNU Lesser General Public License as
       7     published by the Free Software Foundation; either version 2.1 of the
       8     License, or (at your option) any later version.
       9  
      10     This file is distributed in the hope that it will be useful,
      11     but WITHOUT ANY WARRANTY; without even the implied warranty of
      12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      13     GNU Lesser General Public License for more details.
      14  
      15     You should have received a copy of the GNU Lesser General Public License
      16     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  #ifndef _MSVC_NOTHROW_H
      19  #define _MSVC_NOTHROW_H
      20  
      21  /* With MSVC runtime libraries with the "invalid parameter handler" concept,
      22     functions like fprintf(), dup2(), or close() crash when the caller passes
      23     an invalid argument.  But POSIX wants error codes (such as EINVAL or EBADF)
      24     instead.
      25     This file defines wrappers that turn such an invalid parameter notification
      26     into an error code.  */
      27  
      28  /* This file uses HAVE_MSVC_INVALID_PARAMETER_HANDLER.  */
      29  #if !_GL_CONFIG_H_INCLUDED
      30   #error "Please include config.h first."
      31  #endif
      32  
      33  #if defined _WIN32 && ! defined __CYGWIN__
      34  
      35  /* Get original declaration of _get_osfhandle.  */
      36  # include <io.h>
      37  
      38  # if HAVE_MSVC_INVALID_PARAMETER_HANDLER
      39  
      40  /* Override _get_osfhandle.  */
      41  extern intptr_t _gl_nothrow_get_osfhandle (int fd);
      42  #  define _get_osfhandle _gl_nothrow_get_osfhandle
      43  
      44  # endif
      45  
      46  #endif
      47  
      48  #endif /* _MSVC_NOTHROW_H */