Are compilers smart enough to detect a no-op function?
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Published on 2010-06-06T18:50:42Z
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2010/06/06
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c++
If I write a function like this:
void doMaybeNothing()
{
#ifndef IM_LAZY
doSomething();
#endif
}
Are modern compilers smart enough to detect a no-op function and optimize so that there are no cycles wasted? Or is there always a small performance impact?
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