assert/assert-perr.c

   1 /* Copyright (C) 1994-2022 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <assert.h>
  19 #include <libintl.h>
  20 #include <string.h>
  21
  22
  23 /* This function, when passed an error number, a filename, and a line
  24    number, prints a message on the standard error stream of the form:
  25         a.c:10: foobar: Unexpected error: Computer bought the farm
  26    It then aborts program execution via a call to `abort'.  */
  27 void
  28 __assert_perror_fail (int errnum,
  29                       const char *file, unsigned int line,
  30                       const char *function)
  31 {
  32   char errbuf[1024];
  33
  34   char *e = __strerror_r (errnum, errbuf, sizeof errbuf);
  35   __assert_fail_base (_("%s%s%s:%u: %s%sUnexpected error: %s.\n%n"),
  36                       e, file, line, function);
  37 }
  38 libc_hidden_def (__assert_perror_fail)