Texas Instruments TMS34010 Reference Guide

Insert Diagnostic Information Macro assert
Syntax #include <assert.h>
void assert(expression)
int expression;
Defined in assert. h as macros
Description The assert macro tests an expression; depending on the value of the ex-
pression, assert either aborts execution and issues a message or continues
execution. This macro
is useful for debugging.
Example
• If expression is false, the assert macro writes information about the
particular call that failed to the standard output, and then aborts exe-
cution.
• If expression is true, the assert macro does nothing.
The header
file that declares the assert macro refers to another macro,
NDEBUG.
If you have defined NDEBUG as a macro name when the as-
sert . h header is included in the source file, then the assert macro is de-
fined
as:
#define assert(ignore)
If NDEBUG is not defined when assert. h is included, then the assert
macro
is defined as:
#define assert(expr) \
if (! (expr» {
printf("Assertion failed, (expr), file %s,
line %d\n", __ FILE ____ LINE __ )
abort (); }
In this example, an integer i is divided by another integer j. Since divid-
ing by 0 is an illegal operation, the example uses the assert macro to test j
before the division. If j =0, assert issues a message and aborts the program.
int i, j;
assert(j);
q = i/j;
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Texas Instruments TMS34010 Specifications

General

Brand	Texas Instruments
Model	TMS34010
Category	Computer Hardware
Language	English