114 lines
3.1 KiB
C++
114 lines
3.1 KiB
C++
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///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1997-2012, 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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// A function to control which IEEE floating
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// point exceptions will be translated into
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// C++ MathExc exceptions.
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//
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//-----------------------------------------------------
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#include <IexMathFloatExc.h>
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#include <IexMacros.h>
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#include <IexMathFpu.h>
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#if 0
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#include <iostream>
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#define debug(x) (std::cout << x << std::flush)
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#else
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#define debug(x)
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#endif
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IEX_INTERNAL_NAMESPACE_SOURCE_ENTER
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namespace {
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void
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fpeHandler (int type, const char explanation[])
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{
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switch (type)
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{
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case IEEE_OVERFLOW:
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throw OverflowExc (explanation);
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case IEEE_UNDERFLOW:
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throw UnderflowExc (explanation);
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case IEEE_DIVZERO:
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throw DivzeroExc (explanation);
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case IEEE_INEXACT:
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throw InexactExc (explanation);
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case IEEE_INVALID:
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throw InvalidFpOpExc (explanation);
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}
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throw MathExc (explanation);
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}
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} // namespace
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void
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mathExcOn (int when)
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{
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debug ("mathExcOn (when = 0x" << std::hex << when << ")\n");
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setFpExceptions (when);
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setFpExceptionHandler (fpeHandler);
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}
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int
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getMathExcOn ()
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{
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int when = fpExceptions();
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debug ("getMathExcOn () == 0x" << std::hex << when << ")\n");
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return when;
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}
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void
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MathExcOn::handleOutstandingExceptions()
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{
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handleExceptionsSetInRegisters();
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}
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IEX_INTERNAL_NAMESPACE_SOURCE_EXIT
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