assert.h File Reference

#include "stdio.h"

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Macros
#define	assert(expression)
	Check if value is upper alphanumeric. More...

Macro Definition Documentation

assert

#define assert

(

expression

)

Value:

if (!(expression))                                                                              \
    {                                                                                               \
        fprintf(stderr, "Assertion failed (%s): %s at line %d", #expression, __FILE__, __LINE__);   \
        abort();                                                                                    \
    }

Check if value is upper alphanumeric.

If the argument expression of this macro with functional form compares equal to zero (i.e., the expression is false), a message is written to the standard error device and abort is called, terminating the program execution.

Parameters

expression

Expression to be evaluated. If this expression evaluates to 0, this causes an assertion failure that terminates the program..