[unix-history] / usr / man / man3 / assert.3x

.TH ASSERT 3X
.SH NAME
assert \- program verification
.SH SYNOPSIS
.B #include <assert.h>
.PP
.B assert (expression)
.SH DESCRIPTION
.PP
.I Assert
is a macro that indicates
.I expression
is expected to be true at this point in the program.
It causes an
.IR exit (2)
with a diagnostic comment on the standard output
when
.I expression
is false (0).
Compiling with the 
.IR cc (1)
option
.SM
.B \-DNDEBUG
effectively deletes
.I assert
from the program.
.SH DIAGNOSTICS
`Assertion failed: file
.I f
line
.I n.'
.I F
is the source file and
.I n
the source line number
of the
.I assert
statement.
Commit	Line	Data
6022f826 TL	1	.TH ASSERT 3X
	2	.SH NAME
	3	assert \- program verification
	4	.SH SYNOPSIS
	5	.B #include <assert.h>
	6	.PP
	7	.B assert (expression)
	8	.SH DESCRIPTION
	9	.PP
	10	.I Assert
	11	is a macro that indicates
	12	.I expression
	13	is expected to be true at this point in the program.
	14	It causes an
	15	.IR exit (2)
	16	with a diagnostic comment on the standard output
	17	when
	18	.I expression
	19	is false (0).
	20	Compiling with the
	21	.IR cc (1)
	22	option
	23	.SM
	24	.B \-DNDEBUG
	25	effectively deletes
	26	.I assert
	27	from the program.
	28	.SH DIAGNOSTICS
	29	`Assertion failed: file
	30	.I f
	31	line
	32	.I n.'
	33	.I F
	34	is the source file and
	35	.I n
	36	the source line number
	37	of the
	38	.I assert
	39	statement.