On Sun, 22 Apr 2012, Manuel L?pez-Ib??ez wrote:

> Wshadow warns whenever any declaration shadows a global function
> declaration. This is almost always noise, since most (always?) of the
> time one cannot mistakenly replace a function by another variable. The
> false positives are too common (Linus mentions using the name 'index'
> when including string.h).

I think the correct rule would be: warn if a variable *with 
pointer-to-function type* shadows a function, and warn if a nested 
function shadows another function, but don't warn for variables shadowing 
functions if the variable has any other type (because if the variable has 
some type that isn't a pointer-to-function, no confusion is likely without 
another error being given).

-- 
Joseph S. Myers
jos...@codesourcery.com

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