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49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
#ifndef MEDLEYFP_H
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#define MEDLEYFP_H 1
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/* $Id: medleyfp.h,v 1.2 1999/01/03 02:06:16 sybalsky Exp $ (C) Copyright Venue, All Rights Reserved */
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/************************************************************************/
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/* */
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/* (C) Copyright 1989-94 Venue. All Rights Reserved. */
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/* Manufactured in the United States of America. */
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/* */
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/************************************************************************/
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/************************************************************************/
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/* */
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/* */
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/* */
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/* */
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/* */
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/************************************************************************/
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/* --------------------------------------------------
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FPCLEAR - clear status as necessary
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FPTEST(result) - check result or status
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Sun 4 compiler w. -O2 moves too much code around
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to use FLTINT.
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-------------------------------------------------- */
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#ifdef FLTINT
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#include <signal.h>
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extern volatile sig_atomic_t FP_error;
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/* Note that a compiler may very likely move code around the arithmetic
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operation, causing this test (set by an interrupt handler) to be
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incorrect. For example, the Sun SPARC compiler with -O2 makes
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this test incorrect.
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*/
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#define FPCLEAR FP_error = 0;
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#define FPTEST(result) FP_error
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#else
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#include <math.h>
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#define FPCLEAR
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#define FPTEST(result) (!isfinite(result))
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#endif /* FLTINT */
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#endif /* MEDLEYFP_H */
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