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Re: [PATCH, libstdc++, complex] complex multiplication algorithm improved

From: Paolo Carlini <paolo dot carlini at oracle dot com>
To: Wang Feng <wanng dot fenng at gmail dot com>
Cc: libstdc++ at gcc dot gnu dot org, Gabriel Dos Reis <gdr at integrable-solutions dot net>
Date: Wed, 15 Sep 2010 11:24:14 +0200
Subject: Re: [PATCH, libstdc++, complex] complex multiplication algorithm improved
References: <AANLkTikfU1+E9K8B8-6XxvxsCLdu01TcznOTURKaE0vF@mail.gmail.com> <AANLkTikN2zvMaUJL0KPfdfi8ab5iJbtBs5iDeRybnFPD@mail.gmail.com> <4C90866F.5070406@oracle.com> <4C908BCC.9010700@oracle.com> <AANLkTinMQEhmfZ+N1WB_Asg=ZHh+j91LMg8S=SOG3yqh@mail.gmail.com>

On 09/15/2010 11:22 AM, Wang Feng wrote:
> On 15 September 2010 16:58, Basile Starynkevitch
> <basile@starynkevitch.net> wrote:
>   
>> Are you sure it is worth it?
>>     
> It depends, it is faster on my linux-pc.
>   
It is faster how and when? Because for float / double / long double you
are *not* using that code *at all*.

Paolo.

Follow-Ups:
- Re: [PATCH, libstdc++, complex] complex multiplication algorithm improved
  - From: Wang Feng

References:
- [PATCH, libstdc++, complex] complex multiplication algorithm improved
  - From: Wang Feng
- Re: [PATCH, libstdc++, complex] complex multiplication algorithm improved
  - From: Paolo Carlini
- Re: [PATCH, libstdc++, complex] complex multiplication algorithm improved
  - From: Paolo Carlini
- Re: [PATCH, libstdc++, complex] complex multiplication algorithm improved
  - From: Wang Feng

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