Re: [boost] [Endian] Performance

Subject: Re: [boost] [Endian] Performance
From: Phil Endecott (spam_from_boost_dev_at_[hidden])
Date: 2011-09-06 19:54:17

Mathias Gaunard wrote:
> On 06/09/2011 18:28, Phil Endecott wrote:
>> shifts and bitwise ops seem to produce better code
>
> The best code depends on the actual type and architecture.

Perhaps.

> The best thing to do, for performance, is to call specialized functions 
> for each type, such as built-ins or intrinsics.

Unfortunately not, no; in my tests the gcc built-ins were the 
worse-performing on one platform.

> I don't think this is really important though.

You mean the performance of these endian operations in general is not important?

Phil.