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Re: question regarding div / std::div implementation

From: Mike Frysinger <vapier at gentoo dot org>
To: Daniel Gutson <daniel dot gutson at tallertechnologies dot com>
Cc: libc-alpha at sourceware dot org
Date: Wed, 20 Apr 2016 16:27:11 -0400
Subject: Re: question regarding div / std::div implementation
Authentication-results: sourceware.org; auth=none
References: <CAF5HaEXKZ7j-gbZPiWPhDpx7=R0zm1xYvXNYCNUMG4WeZS532Q at mail dot gmail dot com>

On 20 Apr 2016 16:44, Daniel Gutson wrote:
>    is there any reason that std::div / cstdlib div is not implemented
> in such a way that it is expanded to
> the assembly instruction -when available- that calculates both the
> remainder and the quotient,
> e.g. x86' div ?
> 
> For example, why not an inline function with inline assembly? Or,
> should this require a gcc built-in?

sounds like an optimization for gcc rather than hacking something at the
cpp level.  you could post to the gcc-help@ list and they would know best.
	https://gcc.gnu.org/ml/gcc-help/
-mike

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- question regarding div / std::div implementation
  - From: Daniel Gutson

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