Defensive Programming
By M. Tim Jones, February 01, 2005
Defensive programming is a practice where you anticipate failures in your code, then add supporting code to detect, isolate, and in some cases, recover from the anticipated failure.
February, 2005: Defensive Programming
Listing 1
#ifdef AUTO_REGRESS
int stack_regress( void )
{
int a, test, ret;
extern int push( int a );
extern int pop( int *a );
a = 1;
do {
/* Test 1 -- Empty stack test */
ret = pop( &test );
if (test != ERROR) break;
/* Test 2 -- One push/pop test */
ret = push( a );
if (test == ERROR) break;
ret = pop( &test );
if ((test == ERROR) || (a != test)) break;
/* ... more tests, break on failure */
return( SUCCESS );
} while (0);
printf("Stack Failure\n");
return( ERROR );
}
#endif
