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Re: Can g++ optimize empty function?
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From: |
Andre Poenitz |
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Subject: |
Re: Can g++ optimize empty function? |
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Date: |
Thu, 7 Dec 2006 19:41:31 +0100 |
Paulo Matos <pocmatos@gmail.com> wrote:
> Hi all,
>
> Can g++ optimize an (almost) empty function such as
> ostream& foo(ostream& o) { return o; }
>
> int main(void) {
>
> foo(cerr);
>
> return 0:
> }
>
> will g++ make the call to foo?
You could try g++ -O3 -S on your code to see what the compiler
produces. And yes, there is no call to foo.
Andre'