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From: sef@kithrup.com (Sean Eric Fagan)
Subject: Re: ldexp.c fails to compile w/ gcc 2.3.3
Organization: Kithrup Enterprises, Ltd.
References: <SWILDNER.93May26232331@channelz.GUN.de> <3527@bigfoot.first.gmd.de> <1993May30.135241.4970@knobel.GUN.de>
Message-ID: <C7uo1z.8w8@kithrup.com>
Date: Sun, 30 May 1993 17:17:44 GMT
Lines: 86
("comp" is an invalid Distribution: line. By using "comp" as a distribution,
you have caused a large number of sites around the world to drop the article
on the floor, with nary an error. I suspect that is not what you wanted.)
In article <1993May30.135241.4970@knobel.GUN.de> andreas@knobel.GUN.de (Andreas Klemm) writes:
>Therefore I compiled ldexp.c with the old compiler.
>Or is there a solution to configure gcc to accept asm statements ?
>Is there a switch in the config files similar the define which
>enables the pragma pack stuff ....
Here is the updated ldexp.c; the patchkits fix it to this.
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Sean Eric Fagan.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)ldexp.c 5.1 (Berkeley) 4/23/90";
#endif /* LIBC_SCCS and not lint */
/*
* ldexp(value, exp): return value * (2 ** exp).
*
* Written by Sean Eric Fagan (sef@kithrup.COM)
* Sun Mar 11 20:27:09 PST 1990
* Modified by Wolfgang Solfrank (ws@tools.de) for GCC 2.1
* Tue Jun 9 12:56:33 MET DST 1992
*/
/*
* We do the conversion in C to let gcc optimize it away, if possible.
* The "fxch ; fstp" stuff is because value is still on the stack
* (stupid 8087!).
*/
double
ldexp (double value, int exp)
{
double temp, texp, temp2;
texp = exp;
#ifdef __GNUC__
#if __GNUC__ >= 2
asm ("fscale "
: "=u" (temp2), "=t" (temp)
: "0" (texp), "1" (value));
#else
asm ("fscale ; fxch %%st(1) ; fstp%L1 %1 "
: "=f" (temp), "=0" (temp2)
: "0" (texp), "f" (value));
#endif
#else
error unknown asm
#endif
return (temp);
}