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/* Common macros used by gnulib tests.
Copyright (C) 2006-2010 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* This file contains macros that are used by many gnulib tests.
Put here only frequently used macros, say, used by 10 tests or more. */
#include <stdio.h>
#include <stdlib.h>
/* Define ASSERT_STREAM before including this file if ASSERT must
target a stream other than stderr. */
#ifndef ASSERT_STREAM
# define ASSERT_STREAM stderr
#endif
/* ASSERT (condition);
verifies that the specified condition is fulfilled. If not, a message
is printed to ASSERT_STREAM if defined (defaulting to stderr if
undefined) and the program is terminated with an error code.
This macro has the following properties:
- The programmer specifies the expected condition, not the failure
condition. This simplifies thinking.
- The condition is tested always, regardless of compilation flags.
(Unlike the macro from <assert.h>.)
- On Unix platforms, the tester can debug the test program with a
debugger (provided core dumps are enabled: "ulimit -c unlimited").
- For the sake of platforms where no debugger is available (such as
some mingw systems), an error message is printed on the error
stream that includes the source location of the ASSERT invocation.
*/
#define ASSERT(expr) \
do \
{ \
if (!(expr)) \
{ \
fprintf (ASSERT_STREAM, "%s:%d: assertion failed\n", \
__FILE__, __LINE__); \
fflush (ASSERT_STREAM); \
abort (); \
} \
} \
while (0)
/* SIZEOF (array)
returns the number of elements of an array. It works for arrays that are
declared outside functions and for local variables of array type. It does
*not* work for function parameters of array type, because they are actually
parameters of pointer type. */
#define SIZEOF(array) (sizeof (array) / sizeof (array[0]))
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