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bug#9203: 24.0.50; some Clang experience
From: |
Eli Zaretskii |
Subject: |
bug#9203: 24.0.50; some Clang experience |
Date: |
Sat, 30 Jul 2011 15:27:06 +0300 |
> From: Peter Dyballa <Peter_Dyballa@Freenet.DE>
> Date: Sat, 30 Jul 2011 13:53:30 +0200
>
> When using
>
> Apple clang version 2.0 (tags/Apple/clang-139) (based on LLVM 2.9svn)
> Target: x86_64-apple-darwin10
> Thread model: posix
>
> to compile GNU Emacs on Mac OS X 10.6.8 with intel Core i7 it warns about
> some statements:
>
> emacs-24.0.50/lib-src/../src/regex.c:6603:15: warning:
> comparison of unsigned enum expression >= 0 is always true
> [-Wtautological-compare]
> if (ret >= 0)
> ~~~ ^ ~
`ret' is of the type `reg_errcode_t', which is an enumerated data
type, so its signedness is implementation-defined, AFAIK. Why did you
use that particular warning option?