Mega Code Archive

 

Categories / C Tutorial / Ctype h

 

Isxdigit

Item Value Header filectype.h Declarationint isxdigit(int ch); Returnreturns nonzero if ch is a hexadecimal digit; otherwise zero is returned. A hexadecimal digit will be in one of these ranges: A-F, a-f, or 0-9. #include <ctype.h>   #include <stdio.h>   int main(void)   {     char ch;     for(;;) {       ch = getchar();       if(ch == '.'){           break;       }       if(isxdigit(ch))(){           printf("%c is hexadecimal digit\n", ch);       }     }     return 0;   }