Language Ccpp Cref Examples Global.c

/ ************************************************************************
 *
 * Purpose: Demonstrate global and internal variables
 * Author: M J Leslie
 * date: 02-Feb-94
 *
 ************************************************************************/
int counter = 0;			/* global because we are outside
					 all blocks.			*/
int func(void);
main()
{
 counter++;				/* global because it has not been
					 declared within this block	*/
 printf("counter is %2d before the call to func\n", counter);
 func();					/* call a function.		*/
 printf("counter is %2d after the call to func\n", counter);
}
int func(void)
{
 int counter = 10;			/* local.			*/
 printf("counter is %2d within func\n", counter);
}

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