Language Ccpp Cref Examples Strtol.c

/ ****************************************************************
 *
 * Purpose: To show examples of the strtol function.
 * Author: M.J. Leslie
 * Date: 06-Nov-94
 *
 ****************************************************************/
#include <stdlib.h>
main()
{
 char num[10];
				/* Test a valid number		*/
 strcpy(num,"13");
 printf("%s(Oct) is %i(Dec)\n", num, strtol(num, NULL, 8));
 printf("%s(Dec) is %i(Dec)\n", num, strtol(num, NULL, 10));
 printf("%s(hex) is %i(Dec)\n", num, strtol(num, NULL, 16));
 puts("----------------------------------");
				/* Test a slightly valid number
				 * Returns the same results as 
				 * above. 			*/
 strcpy(num, "13hzcd");
 printf("%s(Oct) is %i(Dec)\n", num, strtol(num, NULL, 8));
 printf("%s(Dec) is %i(Dec)\n", num, strtol(num, NULL, 10));
 printf("%s(hex) is %i(Dec)\n", num, strtol(num, NULL, 16));
 puts("----------------------------------");
				/* Test an invalid number
				 * Returns ZERO			*/
 strcpy(num, "hzcd");
 printf("%s(Oct) is %i(Dec)\n", num, strtol(num, NULL, 8));
 printf("%s(Dec) is %i(Dec)\n", num, strtol(num, NULL, 10));
 printf("%s(hex) is %i(Dec)\n", num, strtol(num, NULL, 16));
 puts("----------------------------------");
				/* Test 0 base.
				 * This will look at the number 
				 * and decide the base for its self!
				 */
 strcpy(num, "13");
 printf("%s is %i(Dec)\n", num, strtol(num, NULL, 0));
 strcpy(num, "013");
 printf("%s is %i(Dec)\n", num, strtol(num, NULL, 0));
 strcpy(num, "0x13");
 printf("%s is %i(Dec)\n", num, strtol(num, NULL, 0));
}
/****************************************************************
 *
 * Results of the program:
 *
 *	13(Oct) is 11(Dec)
 *	13(Dec) is 13(Dec)
 *	13(hex) is 19(Dec)
 *	----------------------------------
 *	13hzcd(Oct) is 11(Dec)
 *	13hzcd(Dec) is 13(Dec)
 *	13hzcd(hex) is 19(Dec)
 *	----------------------------------
 *	hzcd(Oct) is 0(Dec)
 *	hzcd(Dec) is 0(Dec)
 *	hzcd(hex) is 0(Dec)
 *	----------------------------------
 *	13 is 13(Dec)
 *	013 is 11(Dec)
 *	0x13 is 19(Dec)
 *
 ****************************************************************/

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