text: /* assert.cc: Handle the assert macro for WIN32.
  
     Copyright 1997, 1998, 2000, 2001, 2002, 2007, 2008, 2009, 2011, 2013
     Red Hat, Inc.
  
  This file is part of Cygwin.
  
  This software is a copyrighted work licensed under the terms of the
  Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
  details. */
  
  #include "winsup.h"
  
  #include <assert.h>
  #include <stdlib.h>
  
  /* This function is called when the assert macro fails.  This will
     override the function of the same name in newlib.  */
  
  extern "C" void
  __assert (const char *file, int line, const char *failedexpr)
  {
    __assert_func (file, line, NULL, failedexpr);
  }
  
  extern "C" void
  __assert_func (const char *file, int line, const char *func,
  	       const char *failedexpr)
  {
    HANDLE h;
  
    /* If we don't have a console in a Windows program, then bring up a
       message box for the assertion failure.  */
  
    h = CreateFile ("CONOUT$", GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
  		  &sec_none_nih, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);
    if (h == INVALID_HANDLE_VALUE)
      {
        PWCHAR buf = (PWCHAR) alloca ((100 + strlen (failedexpr))
  				    * sizeof (WCHAR));
        __small_swprintf (buf,
  			L"Failed assertion\n\t%s\nat line %d of file %s%s%s",
  			failedexpr, line, file,
  			func ? "\nin function " : "", func ? func : "");
        MessageBoxW (NULL, buf, NULL, MB_OK | MB_ICONERROR | MB_TASKMODAL);
      }
    else
      {
        CloseHandle (h);
        small_printf ("assertion \"%s\" failed: file \"%s\", line %d%s%s\n",
  		    failedexpr, file, line,
  		    func ? ", function: " : "", func ? func : "");
        debug_printf ("assertion \"%s\" failed: file \"%s\", line %d%s%s",
  		    failedexpr, file, line,
  		    func ? ", function: " : "", func ? func : "");
      }
  
  #ifdef DEBUGGING
    try_to_debug ();
  #endif
    abort ();	// FIXME: Someday this should work.
  
    /* NOTREACHED */
  }
  