Re: [boost] Config and "unused variables"

From: James Dennett (jdennett_at_[hidden])
Date: 2001-09-25 14:21:43

John Maddock wrote:

>>I currently have need of this for Boost.Threads, so... Any thoughts 
>>or comments on this?
>>
>
>Just a thought but whats wrong with:
>
>(void) parameter_name;
>
>which suppresses the warning and doesn't generate any code, even when
>inline expansions are turned off in the compiler....
>
I've previously used a macro along the lines of

#define BOOST_UNUSED_VARIABLE(x) ((void)(x))

which has the same effect but also documents why the line is there.
This was with C code though; for C++ code I've found that it's always
possible to write without naming unused objects, and I prefer to do
so.  I'll document in the comments why the argument is there but
unused.

-- James Dennett