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From: "Bertrand Augereau" <tramboi@hotmail.com>
Newsgroups: comp.lang.ada
Subject: Re: What is faster Ada or C?
Date: Tue, 4 Dec 2001 23:05:25 +0100
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Date: 2001-12-04T22:02:09+00:00
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> One micro example -- SQRT.  Using Apex and
> Numerics.Generic_Elementary_Functions the SQRT function is faster in Ada
> than in C on any target system with hardware SQRT.  This is because C
> uses a library call to get to the function, while with Ada it is
> possible to use Machine_Code and inlining to just "use" the machine
> instruction.  Further, for single-precision SQRT, C must promote the
> single-precision to double-precision, do the SQRT, and then demote the
> result.  In Ada, the single-precision SQRT machine instruction is all
> that appears in the code listing.

Practically, I've never used a C++ compiler where you couldn't declare an
inline assembly function (g++, intel c++, vc++, mwcw)
Moreover, you have float sqrtf(float) which allows you not to use double
sqrt(double) (it sometimes can be costly, ie PSX2)

But I suppose those have been there since longer in Ada.