'p' == 's' ???

[acid45]

Well, this code below usually works.

#include <stdio.h>
do
{
    fflush(stdin);
     command = getch();
}while(tolower(command) != 'p' && tolower(command) != 's');
switch(tolower(command))
{
    case 'p':
    {
        printf("p");
        break;
    }
    case 's':
    {
        printf("s");
        break;
    }
    default:
    {
        printf("WTF did you do to make it go to default when it just came out of a loop that it requires it to be one or the other?");
        break;
    }
}

However, when I add some int values to it so that it can't be certain keys, which it was doing IE: ? == F5 and PgDwn == S and Right Arrow == M I don't know why it started to do this. The only thing we could figure out to fix it is:

do
{
    fflush(stdin);
     command = getch();
}while(command != 'p' && command != 's' && command != 241 && command != 0);//I think this is the arrow 
//keys primary ascii value
tolower(command);//note this work...i dont know why
//tolower shouldnt change the actual value in the variable
switch(tolower(command))
{
    case 'p':
    {
        printf("p");
        break;
    }
    case 's':
    {
        printf("s");
        break;
    }
    default:
    {
        printf("WTF did you do to make it go to default when it just came out of a loop that it requires it to be one or the other?");
        break;
    }
}

I have no idea why tolower(command); does ANYTHING...

[stumon]

what data type is "command"?