[wplug] C Language Question

[Tom Rhodes]

On Wed, 7 Dec 2005 23:53:14 -0500
"Diana A. Clarion" <dclarion at fnordnet.net> wrote:

> I've been looking at some code that involves signal handlers, and have
> encountered a construct I simply don't recognize.
> 
> The context:  A handler for SIGINT
> 
> void intr(int ignore)
> {
> 	(void)ignore;
> 	siglongjmp(toplevel, 1);
> }
> 
> The construct in question is "(void)ignore;".  I just don't seem to be able to
> find a reference to it anywhere.  Is it a cast to some sort of 'void variable',
> to ensure that the variable 'ignore' is unusable, or is it something else?

Cast to void, no return requirement IIRC.

-- 
Tom Rhodes