12-24-2012
Ok - this is C, you assert the _display_p variable is valid. You know this how?
Please post your code.
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LEARN ABOUT LINUX
assert.h
<assert.h>(P) POSIX Programmer's Manual <assert.h>(P)
NAME
assert.h - verify program assertion
SYNOPSIS
#include <assert.h>
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.
SEE ALSO
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, Standard for Information Technol-
ogy -- Portable Operating System Interface (POSIX), The Open Group Base Specifications 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)