Re: Usage of pre-processor macro.
On 2010-06-30 10:50:46 -0400, Christian Hackl said:
Pete Becker ha scritto:
On 2010-06-30 07:02:44 -0400, Helge Kruse said:
If you omit the UNREF_PARAM, the compiler may warn about unreferenced
parameter(s). The macro creates code where the parameter is assigned to
itself. This doesn't hurt and is optimized away if optimization is
enabled.
Turn off stupid warnings.
I often see this warning labelled as "stupid", but have you never had a
situation in which, by accident, you really were using the wrong
variable in the function? Something along the lines of:
int MyClass::calculate(int x, int y)
{
return complicatedCalculation(x, x); // bug, should be x, y
}
Are some "false positives" of this warning a reason to give away a
chance to automatically detect such bugs?
Yes. If you've written good unit tests, ignoring a function argument
that matters will always be detected.
--
Pete
Roundhouse Consulting, Ltd. (www.versatilecoding.com) Author of "The
Standard C++ Library Extensions: a Tutorial and Reference
(www.petebecker.com/tr1book)
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