strcnvt.c

c primer plus 第五版 的源代码

/* strcnvt.c -- try strtol()  */
#include <stdio.h>
#include <stdlib.h>

int main()
{
    char number[30];
    char * end;
    long value;

    puts("Enter a number (empty line to quit):");
    while(gets(number) && number[0] != '\0')
    {
        value = strtol(number, &end, 10);  /* base 10 */
        printf("value: %ld, stopped at %s (%d)\n",
                      value, end, *end);
        value = strtol(number, &end, 16);  /* base 16 */
        printf("value: %ld, stopped at %s (%d)\n",
                      value, end, *end);
        puts("Next number:");
    }
    puts("Bye!\n");
    
    return 0;
}