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assert(3c) [sunos man page]

assert(3C)																assert(3C)

NAME
assert - verify program assertion SYNOPSIS
#include <assert.h> void assert(int expression); The assert() macro inserts diagnostics into applications. When executed, if expression is FALSE (zero), assert() prints the error message Assertion failed: expression, file xyz, line nnn on the standard error output and aborts. In the error message, xyz is the name of the source file and nnn the source line number of the assert() statement. These are respectively the values of the preprocessor macros __FILE__ and __LINE__. Since assert() is implemented as a macro, the expression may not contain any string literals. Compiling with the preprocessor option -DNDEBUG (see cc(1B)), or with the preprocessor control statement #define NDEBUG ahead of the #include <assert.h> statement, will stop assertions from being compiled into the program. Messages printed from this function are in the native language specified by the LC_MESSAGES locale category. See setlocale(3C). See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ cc(1B), abort(3C), gettext(3C), setlocale(3C), attributes(5), standards(5) 30 Mar 2005 assert(3C)

Check Out this Related Man Page

assert.h(3HEAD) 						      Headers							   assert.h(3HEAD)

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 func- tion, the behavior is undefined. 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) SunOS 5.11 10 Sep 2004 assert.h(3HEAD)

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