GETCHR

Section: C Library Functions (3)
Updated: 10/23/82
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NAME

getchr - ask user to type a character

SYNOPSIS

#include <stdio.h>

int getchr (prompt,legals,defalt);
char *prompt,*legals,defalt;

DESCRIPTION

Getchr will print its prompt and ask the user for a single character. If that charactter is in the string of legal response characters (legals), then its index is returned. If a null string is typed (just a carriage return), then the default character (defalt) will be assumed and its index returned. If a character is typed which is not in the string of legal responses, then an error message is printed and the prompt-and-response cycle is repeated.

BUGS

There is no provision for an escape response (e.g. "I don't like any of these choices").