#include <stdio.h> #include <ctype.h> int main() { char c; c='0'; printf("Result when numeric character is passed: %d", isdigit(c)); c='+'; printf("\nResult when non-numeric character is passed: %d", isdigit(c)); return 0; }
isdigit(myChar);
Non-zero integer ( x > 0 ) Argument is a numeric character. Zero (0) Argument is not a numeric character.