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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 14:58:49 -0700 (PDT)
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Date: 2011-03-26T14:58:49-07:00
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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?

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