Re: "Statement with no effect" warning
Re: "Statement with no effect" warning
- Subject: Re: "Statement with no effect" warning
- From: Chris Espinosa <email@hidden>
- Date: Wed, 20 Jun 2007 22:53:31 -0700
On Jun 20, 2007, at 9:27 PM, Michael Stauffer wrote: Is there a way to suppress the "statement has no effect" and the "left-hand operand of comma _expression_ has no effect" warnings? I can't find these documented. A old post on this list suggests "-no-undefined" but I can't find that documented so am not sure what else it might do.
I am obligated to say that the way to suppress these warnings is to correct the source code that is triggering them.
As for the "statement with no effect" warning, it depends on what specific kind of statement it is. Generally -Wno-unused-value will suppress this warning without turning off all of the unused (function, variable, label, parameter, value) warning with -Wno-unused.
You may also find success in adding the gcc construct __attribute__((unused)) before the statement or _expression_ that is triggering the warning.
Having the code in hand would help me be more specific, of course.
Chris |
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