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| CTASSERT(9) | FreeBSD Kernel Developer's Manual | CTASSERT(9) |
NAME
CTASSERT —
SYNOPSIS
#include <sys/param.h>
#include <sys/systm.h>
CTASSERT(expression);
DESCRIPTION
TheCTASSERT() macro is deprecated and the C11 standard
_Static_assert() should be used instead. The header
sys/cdefs.h should be included to provide compatibility
for pre-C11 compilers.
The CTASSERT() macro evaluates
expression at compile time and causes a compiler error
if it is false.
The CTASSERT() macro is useful for
asserting the size or alignment of important data structures and variables
during compilation, which would otherwise cause the code to fail at run
time.
EXAMPLES
Assert that the size of the uuid structure is 16 bytes.CTASSERT(sizeof(struct uuid) ==
16);SEE ALSO
KASSERT(9)AUTHORS
This manual page was written by Hiten M. Pandya <hmp@FreeBSD.org>.| August 1, 2015 | FreeBSD 13.1-RELEASE |
Visit the GSP FreeBSD Man Page Interface.
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