1 /*

     2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 * FUNCTION

    16 * <<assert>>---Macro for Debugging Diagnostics

    17 * INDEX

    18 * assert

    19 * ANSI_SYNOPSIS

    20 * #include <assert.h>

    21 * void assert(int <[expression]>);

    22 * TRAD_SYNOPSIS

    23 * #include <assert.h>

    24 * assert(<[expression]>)

    25 * int <[expression]>;

    26 * Use this macro to embed debuggging diagnostic statements in

    27 * your programs.  The argument <[expression]> should be an

    28 * expression which evaluates to true (nonzero) when your program

    29 * is working as you intended.

    30 * When <[expression]> evaluates to false (zero), <<assert>>

    31 * calls <<abort>>, after first printing a message showing what

    32 * failed and where:

    33 * . Assertion failed: <[expression]>, file <[filename]>, line <[lineno]>

    34 * The macro is defined to permit you to turn off all uses of

    35 * <<assert>> at compile time by defining <<NDEBUG>> as a

    36 * preprocessor variable.   If you do this, the <<assert>> macro

    37 * expands to

    38 * . (void(0))

    39 * RETURNS

    40 * <<assert>> does not return a value.

    41 * PORTABILITY

    42 * The <<assert>> macro is required by ANSI, as is the behavior

    43 * when <<NDEBUG>> is defined.

    44 * Supporting OS subroutines required (only if enabled): <<close>>, <<fstat>>,

    45 * <<getpid>>, <<isatty>>, <<kill>>, <<lseek>>, <<read>>, <<sbrk>>, <<write>>.

    46 * 

    47 *

    48 */

    49 

    50 

    51 

    52 #include <assert.h>

    53 #include <stdlib.h>

    54 #include <stdio.h>

    55 

    56 EXPORT_C void __assert (const char *file, int line, const char *failedexpr)

    57 {

    58   (void)fprintf(stderr,

    59 	"assertion \"%s\" failed: file \"%s\", line %d\n",

    60 	failedexpr, file, line);

    61   abort();

    62   /* NOTREACHED */

    63 }