Darn it, I need help =/

This is a discussion on Darn it, I need help =/ within the C Programming forums, part of the General Programming Boards category; I didn't want to do this, I was trying to write my first program all on my own without any ...

  1. #1
    Registered User
    Join Date
    Feb 2002
    Posts
    14

    Darn it, I need help =/

    I didn't want to do this, I was trying to write my first program all on my own without any help or ideas and I have it completed excpet for one small problem.

    I wrote a game and everything works just fine, except if you type any letter instead of a number it goes into an infinite loop, which causes a problem for the average user that doesnt know how to use the break.

    Does anyone know of a small snippet of code I can put into my program that will keep this from happening?

    JLTaylor

  2. #2
    Registered User
    Join Date
    Feb 2002
    Posts
    591
    Look into the standard function isdigit()

  3. #3
    Registered User
    Join Date
    Feb 2002
    Posts
    14
    Grrr,

    I try using int isalpha(int c); and I keep getting

    Expression syntax
    array bounds missing ]

    and yes I am using #include <ctype.h>

    JLTaylor

  4. #4
    Sayeh
    Guest
    You know, this board has a wealth of information on it, contributed by so many outstanding folks here--

    ---

    http://www.cprogramming.com/fod/isalpha.html

    enjoy

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