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Diffstat (limited to 'assert/assert.c')
-rw-r--r-- | assert/assert.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/assert/assert.c b/assert/assert.c new file mode 100644 index 0000000000..9da9e22be4 --- /dev/null +++ b/assert/assert.c @@ -0,0 +1,83 @@ +/* Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc. +This file is part of the GNU C Library. + +The GNU C Library is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public License as +published by the Free Software Foundation; either version 2 of the +License, or (at your option) any later version. + +The GNU C Library is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <ansidecl.h> +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <sysdep.h> + + +CONST char *__assert_program_name; + +/* This function, when passed a string containing an asserted + expression, a filename, and a line number, prints a message + on the standard error stream of the form: + a.c:10: foobar: Assertion `a == b' failed. + It then aborts program execution via a call to `abort'. */ + +#ifdef FATAL_PREPARE_INCLUDE +#include FATAL_PREPARE_INCLUDE +#endif + +void +DEFUN(__assert_fail, (assertion, file, line, function), + CONST char *assertion AND + CONST char *file AND unsigned int line AND CONST char *function) +{ +#ifdef FATAL_PREPARE + FATAL_PREPARE; +#endif + + /* Print the message. */ + (void) fprintf (stderr, "%s%s%s:%u: %s%sAssertion `%s' failed.\n", + __assert_program_name ? __assert_program_name : "", + __assert_program_name ? ": " : "", + file, line, + function ? function : "", function ? ": " : "", + assertion); + (void) fflush (stderr); + + abort (); +} + +#ifdef HAVE_GNU_LD + +#include <string.h> + +static void +DEFUN(set_progname, (argc, argv, envp), + int argc AND char **argv AND char **envp) +{ + char *p; + + if (argv && argv[0]) + { + p = strrchr (argv[0], '/'); + if (p == NULL) + __assert_program_name = argv[0]; + else + __assert_program_name = p + 1; + } + + (void) &set_progname; /* Avoid "defined but not used" warning. */ +} + +text_set_element (__libc_subinit, set_progname); + +#endif |