92 lines
3.3 KiB
C
92 lines
3.3 KiB
C
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#ifndef INCLUDED_IEXMATHFPU_H
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#define INCLUDED_IEXMATHFPU_H
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///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1997, Industrial Light & Magic, a division of Lucas
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// Digital Ltd. LLC
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Industrial Light & Magic nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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///////////////////////////////////////////////////////////////////////////
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//------------------------------------------------------------------------
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//
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// Functions to control floating point exceptions.
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//
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//------------------------------------------------------------------------
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#include "IexMathIeeeExc.h"
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#include "IexNamespace.h"
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IEX_INTERNAL_NAMESPACE_HEADER_ENTER
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//-----------------------------------------
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// setFpExceptions() defines which floating
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// point exceptions cause SIGFPE signals.
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//-----------------------------------------
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void setFpExceptions (int when = (IEEE_OVERFLOW | IEEE_DIVZERO | IEEE_INVALID));
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//----------------------------------------
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// fpExceptions() tells you which floating
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// point exceptions cause SIGFPE signals.
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//----------------------------------------
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int fpExceptions ();
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//------------------------------------------
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// setFpExceptionHandler() defines a handler
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// that will be called when SIGFPE occurs.
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//------------------------------------------
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extern "C" typedef void (* FpExceptionHandler) (int type, const char explanation[]);
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void setFpExceptionHandler (FpExceptionHandler handler);
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// -----------------------------------------
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// handleExceptionsSetInRegisters() examines
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// the exception registers and calls the
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// floating point exception handler if the
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// bits are set. This function exists to
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// allow trapping of exception register states
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// that can get set though no SIGFPE occurs.
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// -----------------------------------------
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void handleExceptionsSetInRegisters();
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IEX_INTERNAL_NAMESPACE_HEADER_EXIT
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#endif
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