Copyright (c) 2003 Hiten M. Pandya All rights reserved. This program is free software. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer ...
NAMECTASSERT - compile time assertion macro
SYNOPSISIn sys/param.h In sys/systm.h Fn CTASSERT expression
DESCRIPTIONThe Fn CTASSERT macro evaluates Fa expression at compile time and causes a compiler error if it is false.
The Fn 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.
IMPLEMENTATION NOTESThe Fn CTASSERT macro should not be used in a header file. It is implemented using a dummy typedef, with a name (based on line number) that may conflict with a Fn CTASSERT in a source file including that header.
EXAMPLESAssert that the size of the Vt uuid structure is 16 bytes.
"CTASSERT(sizeof(struct uuid) == 16);"