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 ASSERT.H 3HEAD "Jan 14, 2015"
 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 function, the
behavior is undefined.


The <assert.h> header also defines the static_assert() macro. This
macros is similar to assert(); however, while assert() is used at
program execution time, static_assert() is evaluated and checked by the
compiler at compilation-time.

 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)