delorie.com/djgpp/doc/libc/libc_509.html   search  
libc.a reference

[ < ] [ > ]   [ << ] [ Up ] [ >> ]         [Top] [Contents] [Index] [ ? ]

isdigit

Syntax

 
#include <ctype.h>

int isdigit(int c);

Description

Tells if c is a digit.

Return Value

Nonzero if c is a digit, else zero.

Portability

ANSI/ISO C C89; C99
POSIX 1003.2-1992; 1003.1-2001


  webmaster     delorie software   privacy  
  Copyright © 2004     Updated Apr 2004