Re: NSAssert and Unused Variable

[Chris Suter]

On 03/04/2008, at 11:30 AM, Jens Alfke wrote:

I seem to recall a pragma or macro that can be used to tell the compiler "I know this variable is unused, don't complain about it", though I don't remember the details...

Apple gcc only:

#pragma unused (var)

or

_Pragma("unused(var)")



or you can do:

(void)var;

or  you can use the unused attribute e.g.:

void my_func (int a, int b __attribute__((__unused__)))

or

int var __attribute__((__unused__));



- Chris

The implementation of that pragma has some bugs in it that will cause gcc to crash or hang in certain circumstances that I really should report. Unfortunately, there's no way that I know of to apply that attribute to Objective-C method parameters.

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