1: /* Copyright (C) 1991,1994-1996,1998,2001,2002,2005
    2:    Free Software Foundation, Inc.
    3:    This file is part of the GNU C Library.
    4: 
    5:    The GNU C Library is free software; you can redistribute it and/or
    6:    modify it under the terms of the GNU Lesser General Public
    7:    License as published by the Free Software Foundation; either
    8:    version 2.1 of the License, or (at your option) any later version.
    9: 
   10:    The GNU C Library 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 GNU
   13:    Lesser General Public License for more details.
   14: 
   15:    You should have received a copy of the GNU Lesser General Public
   16:    License along with the GNU C Library; if not, write to the Free
   17:    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   18:    02111-1307 USA.  */
   19: 
   20: #include <assert.h>
   21: #include <libintl.h>
   22: #include <stdio.h>
   23: #include <stdlib.h>
   24: #include <sysdep.h>
   25: #include <unistd.h>
   26: 
   27: 
   28: extern const char *__progname;
   29: 
   30: #ifdef USE_IN_LIBIO
   31: # include <wchar.h>
   32: # include <libio/iolibio.h>
   33: # define fflush(s) INTUSE(_IO_fflush) (s)
   34: #endif
   35: 
   36: /* This function, when passed a string containing an asserted
   37:    expression, a filename, and a line number, prints a message
   38:    on the standard error stream of the form:
   39:         a.c:10: foobar: Assertion `a == b' failed.
   40:    It then aborts program execution via a call to `abort'.  */
   41: 
   42: #ifdef FATAL_PREPARE_INCLUDE
   43: # include FATAL_PREPARE_INCLUDE
   44: #endif
   45: 
   46: #undef __assert_fail
   47: void
   48: __assert_fail (const char *assertion, const char *file, unsigned int line,
   49:                const char *function)
   50: {
   51:   char *buf;
   52: 
   53: #ifdef FATAL_PREPARE
   54:   FATAL_PREPARE;
   55: #endif
   56: 
   57:   if (__asprintf (&buf, _("%s%s%s:%u: %s%sAssertion `%s' failed.\n"),
   58:                   __progname, __progname[0] ? ": " : "",
   59:                   file, line,
   60:                   function ? function : "", function ? ": " : "",
   61:                   assertion) >= 0)
   62:     {
   63:       /* Print the message.  */
   64:       (void) __fxprintf (NULL, "%s", buf);
   65:       (void) fflush (stderr);
   66: 
   67:       /* We have to free the buffer since the application might catch the
   68:          SIGABRT.  */
   69:       free (buf);
   70:     }
   71:   else
   72:     {
   73:       /* At least print a minimal message.  */
   74:       static const char errstr[] = "Unexpected error.\n";
   75:       __libc_write (STDERR_FILENO, errstr, sizeof (errstr) - 1);
   76:     }
   77: 
   78:   abort ();
   79: }
   80: hidden_def(__assert_fail)