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Re: [Patch 1/3] Use manual regex algorithm switching

From: Tim Shen <timshen91 at gmail dot com>
To: Jonathan Wakely <jwakely at redhat dot com>
Cc: "libstdc++" <libstdc++ at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Fri, 25 Apr 2014 18:14:18 -0400
Subject: Re: [Patch 1/3] Use manual regex algorithm switching
Authentication-results: sourceware.org; auth=none
References: <CAPrifDm8MwcHY8XSnW_z6Z_hLVS+Lw4huqWEF3_eNT=fw3mkRg at mail dot gmail dot com> <20140425211417 dot GM928 at redhat dot com>

On Fri, Apr 25, 2014 at 5:14 PM, Jonathan Wakely <jwakely@redhat.com> wrote:
> I wonder if this would be simpler to read like this:
>
>        if (!__re._M_automaton->_M_has_backref
> #ifndef _GLIBCXX_REGEX_USE_THOMPSON_NFA
>            && __policy == _RegexExecutorPolicy::_S_alternate
> #endif
>           )

I don't think this has equivalent logic. If
_GLIBCXX_REGEX_USE_THOMPSON_NFA is not defined, the _S_alternate
should also work, for testing purpose.

Other parts is good. Sorry for those inconvenience :(

-- 
Regards,
Tim Shen

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  - From: Tim Shen
- Re: [Patch 1/3] Use manual regex algorithm switching
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