NSException.h

/*
 * Asserts to use in Objective-C method bodies
 */
 
#define NSAssert5(condition, desc, arg1, arg2, arg3, arg4, arg5)	\
    _NSAssertBody((condition), (desc), (arg1), (arg2), (arg3), (arg4), (arg5))

#define NSAssert4(condition, desc, arg1, arg2, arg3, arg4)	\
    _NSAssertBody((condition), (desc), (arg1), (arg2), (arg3), (arg4), 0)

#define NSAssert3(condition, desc, arg1, arg2, arg3)	\
    _NSAssertBody((condition), (desc), (arg1), (arg2), (arg3), 0, 0)

#define NSAssert2(condition, desc, arg1, arg2)		\
    _NSAssertBody((condition), (desc), (arg1), (arg2), 0, 0, 0)

#define NSAssert1(condition, desc, arg1)		\
    _NSAssertBody((condition), (desc), (arg1), 0, 0, 0, 0)

#define NSAssert(condition, desc)			\
    _NSAssertBody((condition), (desc), 0, 0, 0, 0, 0)