Clear

[drdroid]

Is there a way to specifically clear a variable?

[Shiro]

It depends on what you mean by clearing and what kind of variable you mean.

[drdroid]

I want to clear a char. I'm using borland c++.

[Shiro]

Assume c is a variable of type char then you can clear it by:

c = '\0';

[drdroid]

Is there anything more specific than that because it doesn't seem to work on borland c++.

[Stoned_Coder]

c^=c;

[drdroid]

Not to be rude but could you be a little more specific, Stoned Coder? Or could someone, please, define what he just said?

[nvoigt]

c^=c;

is a piece of sourcecode that will set c to zero.

You cannot 'clear' a variable. A variable always has a state. You can define one as clear, like zero, but the variable will always have a value.

[drdroid]

Doesn't work... do you need any header files?

[C_Coder]

Can you post the offending code.
I'd like to see this mutinous variable in action

[drdroid]

This might make it easier... how do you clear a coordinate ... with gotoxy?

[C_Coder]

Are you trying to clear a point on the screen or a variable in memory.
At the start of this thread it sounded like you wanted to clear the variable, now you mention gotoxy it's sounds like you want to clear a point on the screen.
Which is it???????????????????????????

[golfinguy4]

drdroid, your question isn't exactly specific. To get help, you need to give us the details of your problems.

[drdroid]

It's a point on the screen. Noone answered the first question so I changed it to see if there was a responce. How do you clear a specific point on the screen?

[drdroid]

I'm creating a maze editor in which you create walls then move on to create more walls. I don't want to delete the whole thing, just the asterisk(the pointer, or mouse that you move around to create walls).