0p:assert.h
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assert.h - verify program assertion
#include <assert.h>
Contents |
DESCRIPTION
The <assert.h> header shall define the assert() macro. It refers to the macro NDEBUG which is not defined in the
header. If NDEBUG is defined as a macro name before the inclusion of this header, the assert() macro shall be
defined simply as:
#define assert(ignore)((void) 0)
Otherwise, the macro behaves as described in assert().
The assert() macro shall be redefined according to the current state of NDEBUG each time <assert.h> is included.
The assert() macro shall be implemented as a macro, not as a function. If the macro definition is suppressed in
order to access an actual function, the behavior is undefined.
The following sections are informative.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
RELATED
The System Interfaces volume of IEEE Std 1003.1-2001, assert()
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Stan-
dard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifica-
tions Issue 6, Copyright (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open
Group. In the event of any discrepancy between this version and the original IEEE and The Open Group Standard,
the original IEEE and The Open Group Standard is the referee document. The original Standard can be obtained
online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 <assert.h>(P)