http://d.puremagic.com/issues/show_bug.cgi?id=3960


rswhite4@googlemail.com changed:

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--- Comment #30 from rswhite4@googlemail.com 2012-07-30 10:26:03 PDT ---
I wrote a short programm which detect and list unused variables.
I'm sure it isn't perfect but it passed most of my test cases and IMO
something like this should be integrated into the D compiler.
Maybe automatically if you use the -w or -wi compiler flag switch.

Code: http://dpaste.dzfl.pl/c5f1d2ba
Some of my testcases: http://dpaste.dzfl.pl/f74da85e

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--- Comment #31 from bearophile_hugs@eml.cc 2012-07-30 10:38:23 PDT ---
(In reply to comment #30)

> Code: http://dpaste.dzfl.pl/c5f1d2ba
> Some of my testcases: http://dpaste.dzfl.pl/f74da85e

Paste sites eventually lose their content. That's why I have said to *attach* your stuff in Bugzilla.

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rswhite4@googlemail.com changed:

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         AssignedTo|nobody@puremagic.com        |rswhite4@googlemail.com


--- Comment #32 from rswhite4@googlemail.com 2012-07-30 12:07:53 PDT ---
Created an attachment (id=1128)
Unused variables detector code

Forget to upload the code of my unused variables detector.

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Stewart Gordon <smjg@iname.com> changed:

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   Attachment #1128|application/octet-stream    |text/plain
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--- Comment #33 from bearophile_hugs@eml.cc 2012-10-21 04:39:22 PDT ---
A related warning is for "unused local alias".

A bug in GCC, libstdc++/33084, in <valarrray> function with this body:


typedef _BinClos<_Name, _Constant, _ValArray, _Tp, _Tp> _Closure;

typedef typename __fun<_Name, _Tp>::result_type _Rt;

return _Expr<_Closure, _Tp>(_Closure(__t, __v));


There is a typo: _Rt  ->  _Tp

In GCC 4.7, the -Wunused-local-typedefs warning detects such sort of suspect "unused" typedef.

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