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From: ytomino <aghia05@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: What is the warning about builtin-function on gcc-4.6.0 ?
Date: Sat, 26 Mar 2011 14:36:04 -0700 (PDT)
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On Mar 27, 12:14=A0am, "Dmitry A. Kazakov" <mail...@dmitry-kazakov.de>
wrote:
> Ada floating point types are not necessarily IEEE.

I knew and so used builtin-functions.

> Luckily you can kill the IEEE stuff even if the machine is IEEE:
>
> =A0 =A0subtype No_Mess is Float range Float'Range; -- No surprises any mo=
re
>
> When interfacing C, one IMO should always add a range or validity check
> when taking floating-point values from C, to prevent non-numbers leaking
> out. Unfortunately it is a lot of work, so no Ada bindings actually follo=
ws
> this rule.

uh, there are functions (from C) that return infinity/NaN
intentionally, too.