| 1 | // |
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| 2 | // ******************************************************************** |
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| 3 | // * License and Disclaimer * |
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| 4 | // * * |
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of * |
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and * |
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| 7 | // * conditions of the Geant4 Software License, included in the file * |
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
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| 9 | // * include a list of copyright holders. * |
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| 10 | // * * |
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| 11 | // * Neither the authors of this software system, nor their employing * |
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| 12 | // * institutes,nor the agencies providing financial support for this * |
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| 13 | // * work make any representation or warranty, express or implied, * |
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| 14 | // * regarding this software system or assume any liability for its * |
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| 15 | // * use. Please see the license in the file LICENSE and URL above * |
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| 16 | // * for the full disclaimer and the limitation of liability. * |
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| 17 | // * * |
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| 18 | // * This code implementation is the result of the scientific and * |
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| 19 | // * technical work of the GEANT4 collaboration. * |
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| 20 | // * By using, copying, modifying or distributing the software (or * |
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| 21 | // * any work based on the software) you agree to acknowledge its * |
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| 22 | // * use in resulting scientific publications, and indicate your * |
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| 23 | // * acceptance of all terms of the Geant4 Software license. * |
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| 24 | // ******************************************************************** |
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| 25 | // |
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| 26 | // |
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| 27 | // $Id: G4FPEDetection.hh,v 1.2 2006/11/15 16:00:18 gcosmo Exp $ |
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| 28 | // GEANT4 tag $Name: geant4-09-03 $ |
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| 29 | // |
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| 30 | // |
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| 31 | // -*- C++ -*- |
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| 32 | // |
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| 33 | // ----------------------------------------------------------------------- |
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| 34 | // This global method should be used on LINUX platforms with gcc compiler |
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| 35 | // for activating NaN detection and FPE signals, and forcing abortion of |
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| 36 | // the application at the time these are detected. |
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| 37 | // Meant to be used for debug purposes, can be activated by compiling the |
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| 38 | // "run" module with the flag G4FPE_DEBUG set in the environment. |
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| 39 | // ----------------------------------------------------------------------- |
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| 40 | |
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| 41 | #ifndef G4FPEDetection_h |
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| 42 | #define G4FPEDetection_h 1 |
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| 43 | |
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| 44 | #ifdef __linux__ |
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| 45 | #ifdef __GNUC__ |
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| 46 | #include <features.h> |
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| 47 | #include <fenv.h> |
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| 48 | #include <csignal> |
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| 49 | |
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| 50 | #include <iostream> |
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| 51 | |
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| 52 | struct sigaction termaction, oldaction; |
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| 53 | |
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| 54 | void TerminationSignalHandler(int sig) |
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| 55 | { |
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| 56 | std::cerr << "ERROR: " << sig; |
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| 57 | std::string message; |
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| 58 | switch (SIGFPE) |
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| 59 | { |
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| 60 | case FPE_INTDIV: |
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| 61 | message = "Integer divide by zero."; |
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| 62 | break; |
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| 63 | case FPE_INTOVF: |
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| 64 | message = "Integer overflow."; |
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| 65 | break; |
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| 66 | case FPE_FLTDIV: |
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| 67 | message = "Floating point divide by zero."; |
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| 68 | break; |
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| 69 | case FPE_FLTOVF: |
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| 70 | message = "Floating point overflow."; |
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| 71 | break; |
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| 72 | case FPE_FLTUND: |
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| 73 | message = "Floating point underflow."; |
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| 74 | break; |
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| 75 | case FPE_FLTRES: |
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| 76 | message = "Floating point inexact result."; |
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| 77 | break; |
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| 78 | case FPE_FLTINV: |
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| 79 | message = "Floating point invalid operation."; |
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| 80 | break; |
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| 81 | case FPE_FLTSUB: |
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| 82 | message = "Subscript out of range."; |
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| 83 | break; |
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| 84 | default: |
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| 85 | message = "Unknown error."; |
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| 86 | break; |
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| 87 | } |
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| 88 | std::cerr << " - " << message << std::endl; |
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| 89 | |
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| 90 | ::abort(); |
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| 91 | } |
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| 92 | |
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| 93 | void InvalidOperationDetection() |
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| 94 | { |
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| 95 | std::cout << std::endl |
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| 96 | << " " |
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| 97 | << "############################################" << std::endl |
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| 98 | << " " |
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| 99 | << "!!! WARNING - FPE detection is activated !!!" << std::endl |
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| 100 | << " " |
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| 101 | << "############################################" << std::endl; |
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| 102 | |
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| 103 | (void) feenableexcept( FE_DIVBYZERO ); |
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| 104 | (void) feenableexcept( FE_INVALID ); |
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| 105 | //(void) feenableexcept( FE_OVERFLOW ); |
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| 106 | //(void) feenableexcept( FE_UNDERFLOW ); |
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| 107 | |
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| 108 | sigset_t *def_set; |
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| 109 | def_set=&termaction.sa_mask; |
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| 110 | sigfillset(def_set); |
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| 111 | sigdelset(def_set,SIGFPE); |
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| 112 | termaction.sa_handler=TerminationSignalHandler; |
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| 113 | termaction.sa_flags=0; |
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| 114 | sigaction(SIGFPE, &termaction,&oldaction); |
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| 115 | } |
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| 116 | #endif |
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| 117 | #else |
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| 118 | void InvalidOperationDetection() {;} |
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| 119 | #endif |
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| 120 | |
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| 121 | #endif |
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