%PDF- %PDF-
Direktori : /usr/include/OpenEXR/ |
Current File : //usr/include/OpenEXR/IexMathFpu.h |
#ifndef INCLUDED_IEXMATHFPU_H #define INCLUDED_IEXMATHFPU_H /////////////////////////////////////////////////////////////////////////// // // Copyright (c) 1997, Industrial Light & Magic, a division of Lucas // Digital Ltd. LLC // // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * 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. // * Neither the name of Industrial Light & Magic 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 COPYRIGHT HOLDERS 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 COPYRIGHT // OWNER 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. // /////////////////////////////////////////////////////////////////////////// //------------------------------------------------------------------------ // // Functions to control floating point exceptions. // //------------------------------------------------------------------------ #include "IexMathIeeeExc.h" #include "IexNamespace.h" IEX_INTERNAL_NAMESPACE_HEADER_ENTER //----------------------------------------- // setFpExceptions() defines which floating // point exceptions cause SIGFPE signals. //----------------------------------------- void setFpExceptions (int when = (IEEE_OVERFLOW | IEEE_DIVZERO | IEEE_INVALID)); //---------------------------------------- // fpExceptions() tells you which floating // point exceptions cause SIGFPE signals. //---------------------------------------- int fpExceptions (); //------------------------------------------ // setFpExceptionHandler() defines a handler // that will be called when SIGFPE occurs. //------------------------------------------ extern "C" typedef void (* FpExceptionHandler) (int type, const char explanation[]); void setFpExceptionHandler (FpExceptionHandler handler); // ----------------------------------------- // handleExceptionsSetInRegisters() examines // the exception registers and calls the // floating point exception handler if the // bits are set. This function exists to // allow trapping of exception register states // that can get set though no SIGFPE occurs. // ----------------------------------------- void handleExceptionsSetInRegisters(); IEX_INTERNAL_NAMESPACE_HEADER_EXIT #endif