diff options
Diffstat (limited to 'assert')
| -rw-r--r-- | assert/Makefile | 26 | ||||
| -rw-r--r-- | assert/assert-perr.c | 55 | ||||
| -rw-r--r-- | assert/assert.c | 83 | ||||
| -rw-r--r-- | assert/assert.h | 98 |
4 files changed, 262 insertions, 0 deletions
diff --git a/assert/Makefile b/assert/Makefile new file mode 100644 index 0000000000..76b75bb2f8 --- /dev/null +++ b/assert/Makefile @@ -0,0 +1,26 @@ +# Copyright (C) 1991, 1994 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. + +# +# Sub-makefile for assert portion of the library. +# +subdir := assert + +routines := assert assert-perr + +include ../Rules diff --git a/assert/assert-perr.c b/assert/assert-perr.c new file mode 100644 index 0000000000..b0436ad575 --- /dev/null +++ b/assert/assert-perr.c @@ -0,0 +1,55 @@ +/* Copyright (C) 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 <assert.h> +#include <stdio.h> +#include <string.h> +#include <sysdep.h> + + +extern const char *__assert_program_name; /* In assert.c. */ + +/* This function, when passed an error number, a filename, and a line + number, prints a message on the standard error stream of the form: + a.c:10: foobar: Unexpected error: Computer bought the farm + It then aborts program execution via a call to `abort'. */ + +#ifdef FATAL_PREPARE_INCLUDE +#include FATAL_PREPARE_INCLUDE +#endif + +void +__assert_perror_fail (int errnum, + const char *file, unsigned int line, + const char *function) +{ +#ifdef FATAL_PREPARE + FATAL_PREPARE; +#endif + + /* Print the message. */ + (void) fprintf (stderr, "%s%s%s:%u: %s%sUnexpected error: %s.\n", + __assert_program_name ? __assert_program_name : "", + __assert_program_name ? ": " : "", + file, line, + function ? function : "", function ? ": " : "", + strerror (errnum)); + (void) fflush (stderr); + + abort (); +} 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 diff --git a/assert/assert.h b/assert/assert.h new file mode 100644 index 0000000000..7f7fc7f733 --- /dev/null +++ b/assert/assert.h @@ -0,0 +1,98 @@ +/* Copyright (C) 1991, 1992, 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, 1992 Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +/* + * ANSI Standard: 4.2 DIAGNOSTICS <assert.h> + */ + +#ifdef _ASSERT_H + +#undef _ASSERT_H +#undef assert + +#endif /* assert.h */ + +#define _ASSERT_H 1 +#include <features.h> + +/* void assert (int expression); + + If NDEBUG is defined, do nothing. + If not, and EXPRESSION is zero, print an error message and abort. */ + +#ifdef NDEBUG + +#define assert(expr) ((void) 0) + +/* void assert_perror (int errnum); + + If NDEBUG is defined, do nothing. If not, and ERRNUM is not zero, print an + error message with the error text for ERRNUM and abort. + (This is a GNU extension.) */ + +#ifdef __USE_GNU +#define assert_perror(errnum) ((void) 0) +#endif + +#else /* Not NDEBUG. */ + +#include <sys/cdefs.h> + +__BEGIN_DECLS + +/* This prints an "Assertion failed" message and aborts. */ +extern void __assert_fail __P ((__const char *__assertion, + __const char *__file, + unsigned int __line, + __const char *__function)) + __attribute__ ((__noreturn__)); + +/* Likewise, but prints the error text for ERRNUM. */ +extern void __assert_perror_fail __P ((int __errnum, + __const char *__file, + unsigned int __line, + __const char *__function)) + __attribute__ ((__noreturn__)); + +__END_DECLS + +#define assert(expr) \ + ((void) ((expr) || \ + (__assert_fail (__STRING(expr), \ + __FILE__, __LINE__, __ASSERT_FUNCTION), 0))) + +#ifdef __USE_GNU +#define assert_perror(errnum) \ + ((void) ((errnum) && (__assert_perror_fail ((errnum), \ + __FILE__, __LINE__, \ + __ASSERT_FUNCTION), 0))) +#endif + +/* Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__' + which contains the name of the function currently being defined. + This is broken in G++ before version 2.6. */ +#if (!defined (__GNUC__) || __GNUC__ < 2 || \ + __GNUC_MINOR__ < (defined (__cplusplus) ? 6 : 4)) +#define __ASSERT_FUNCTION ((__const char *) 0) +#else +#define __ASSERT_FUNCTION __PRETTY_FUNCTION__ +#endif + + +#endif /* NDEBUG. */ + |