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# 8  
Old 05-01-2002
Re: lets see
Quote:
but if the person enters a character the program crashes , any help at all
if (!isdigit(vert))
printf("Invalid input (enter a number)");
else if (vert > 3)
printf("blah blah...");
else if (vert < 1)
printf("blah blah...");
else
{
/* do your stuff here */
}
# 9  
Old 05-02-2002
sorry to be a pain but that dont work mate it wont let you enter any valuer in what so ever
# 10  
Old 05-02-2002
Post the entire program. The exact method to validate input depends on how the input is obtained.
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