From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Thread: 103376,ecc38b3271b36b88
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news2.google.com!news3.google.com!proxad.net!feeder1-2.proxad.net!weretis.net!feeder5.news.weretis.net!news.szaf.org!news.gnuher.de!news.enyo.de!not-for-mail
From: Florian Weimer <fw@deneb.enyo.de>
Newsgroups: comp.lang.ada
Subject: Re: What is the warning about builtin-function on gcc-4.6.0 ?
Date: Sat, 26 Mar 2011 23:00:48 +0100
Message-ID: <87vcz5tucv.fsf@mid.deneb.enyo.de>
References: <b7736fb9-8593-47cc-9ac5-58a95ff6be5f@34g2000pru.googlegroups.com>
	<87aagiclte.fsf@mid.deneb.enyo.de>
	<475d10ca-5d4e-490c-9b88-e12cd3cd3faa@b13g2000prf.googlegroups.com>
	<87d3lejjyv.fsf@mid.deneb.enyo.de>
	<87a51f81-4704-42e6-98a0-dde50c74462e@34g2000pru.googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
X-Trace: ruchba.enyo.de 1301176848 23919 172.17.135.6 (26 Mar 2011 22:00:48
 GMT)
X-Complaints-To: news@enyo.de
Cancel-Lock: sha1:TOnn37dtkU+ifXHvHSSu2Fp9bAQ=
Xref: g2news2.google.com comp.lang.ada:19456
Date: 2011-03-26T23:00:48+01:00
List-Id: <comp.lang.ada>

* ytomino:

> In definition of builtin-functions:
>
> http://gcc.gnu.org/viewcvs/trunk/gcc/builtins.def?view=markup
>> DEF_C99_C90RES_BUILTIN (BUILT_IN_ISINF, "isinf", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_TYPEGENERIC)
>> DEF_EXT_LIB_BUILTIN    (BUILT_IN_ISINFF, "isinff", BT_FN_INT_FLOAT, ATTR_CONST_NOTHROW_LEAF_LIST)
>> DEF_EXT_LIB_BUILTIN    (BUILT_IN_ISINFL, "isinfl", BT_FN_INT_LONGDOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
>
> isinf has a "VAR" argument, it means overload,
> and isinff has an argument that is just float.
>
> This means,  we can call isinff and isinfl, but can not call isinf
> (for double as Long_Float) from Ada. Is it right?

I believe the compiler will resolve the overload internally, but I'm
not sure.

> It seems to me that the compiler shall accept isinf(double only).

I think you mean "isinfl", but that should be accepted.