Thread: Secure entry keypad simulator

Is this supposed to be in C or C++? I notice that you posted this after posting the same thing in the C++ programming forum.

It's to be coded in C. being new to the forum I posted it in both. But yes it's to be coded in C apologies

Right. Are you permitted to use third party libraries? After all, your requirements have a scope that lies outside of what is provided by standard C.

if the requirement does fall outside of standard C, then Yea I'm confident we can use it.

Any help is very well received.. If I could post pictures to thing page id show the assignment brief and that would help no end im sure

Let me see if I understand;
Hit a key, remember the value, display a '*'.
Do that four times to get a four digit number, displaying '****'.
Allow three cycles before sounding an alarm but interupt that loop if the correct sequence is entered.
The "control" keys are 'E', 'C' and 'S'.

What OS and platform are you coding for?

Yes mate that's the general gist of it. But also allowing no more than 10 characters to displayed as ********* as digits are typed, as obviously the theoretically folk using it wouldn't know the correct passcode.
But yea you're on the money with that description

Coding in C on visual studio 2010, and Windows

Originally Posted by cchivers1

And is say, to be safe that the code should probably fall within the remit of standard C code.

To solve this you will need to use a third party library or to use operating-system specific techniques to read from the console. For some examples of how to do this with Windows specific code you could see this thread

how to display * for input password - C++ Forum