From: "Steve Chalkley" <sjc AT conceptii DOT co DOT uk>
Newsgroups: comp.os.msdos.djgpp
References: <88v09h$64n$1 AT nets3 DOT rz DOT RWTH-Aachen DOT DE>
Subject: Re: rectification about switch ... such a big mistake
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Date: Mon, 28 Feb 2000 14:36:04 -0000
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To: djgpp AT delorie DOT com
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If your prompt is printed twice then your loop is being executed twice! Try
printing the hex value of charact after it is read, it might tell you
something interesting...


Steve Chalkley


Florent BUDILLON <florent AT oih DOT rwth-aachen DOT de> wrote in message
news:88v09h$64n$1 AT nets3 DOT rz DOT RWTH-Aachen DOT DE...
> Sorry but in the first message there is a big mistake. I didn't to write
all
> the program because it's quite long. So if somebody want to help me, I
made
> it right.
>
> I wrote this function which works quite well except one thing, the second
> time I use the function the program writes twice "Absolute (enter M) or
> relative (enter A) displacement" without doing really something wrong but
it
> looks bad on the screen. The defect comes from the switch, and in fact
it's
> when the character is 'M' only (not with 'A') . Do you know if there any
bug
> with this "switch" or I did it wrong.
>
> Thanks for helping me ...
>
>
>
> int input_one_char(char CHAINEcharact[])
>
> {
> int test=0,check=0;
> char charact;
>
> do
>    {
>     printf("\r%s : ",CHAINEcharact);
>     fflush(stdout);
>     test=scanf("%c*[^\n]",&charact);
>     charact=toupper(charact);
>     switch (charact)
>            {
>             case 'A':
>             case 'M':
>                  check=1;
>            };
>     } while ((test!=1)||(check==0));
>
> return charact;
>
> int main()
>
> ......
>
> Node->Type=input_one_char("Absolute (enter M) or relative (enter A)
> displacement");
>
> .....
>
>
>