05-25-2007
That response reminds me of the day I decided I wasn't cut out to be a Math Major. In my Linear Algebra class, my Professor said "There is something in the vector space. That something is nothingness."
Okay, so now, let me get this right.
When I go
#define SOMETHING
Something is being defined, but we aren't too sure what that something is? And then later on, when I see
#ifdef JOB_CONTROL
signal(SIGTSTP,(RETSIGTYPE (*)())susp);
#endif /*JOB_CONTROL*/
We can use that something, which aren't too sure of what it is, to test to see if the shell supports job control?
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LEARN ABOUT OPENSOLARIS
assert
assert.h(3HEAD) Headers assert.h(3HEAD)
NAME
assert.h, assert - verify program assertion
SYNOPSIS
#include <assert.h>
DESCRIPTION
The <assert.h> header defines 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 is defined simply as:
#define assert(ignore)((void) 0)
Otherwise, the macro behaves as described in assert(3C).
The assert() macro is redefined according to the current state of NDEBUG each time <assert.h> is included.
The assert() macro is implemented as a macro, not as a function. If the macro definition is suppressed in order to access an actual func-
tion, the behavior is undefined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO
assert(3C), attributes(5), standards(5)
SunOS 5.11 10 Sep 2004 assert.h(3HEAD)