ana::FloatingExceptionOnNaN Class Reference

Alter floating-point exception flag. More...

#include <Utilities.h>

Public Member Functions
	FloatingExceptionOnNaN (bool enable=true)
	~FloatingExceptionOnNaN ()

Protected Attributes
fexcept_t	fBackup

Detailed Description

Alter floating-point exception flag.

Upon going out of scope, restores the previous setting

Definition at line 80 of file sbnana/sbnana/CAFAna/Core/Utilities.h.

Constructor & Destructor Documentation

ana::FloatingExceptionOnNaN::FloatingExceptionOnNaN

(

bool

enable = true

)

Definition at line 67 of file sbnana/sbnana/CAFAna/Core/Utilities.cxx.

  {
    // Don't want any pending FPEs to trigger when we flip exceptions
    // on. Whoever had them off previously had a reason.
    feclearexcept(FE_INVALID);

    fegetexceptflag(&fBackup, FE_INVALID);

#ifndef DARWINBUILD
    if(enable)
      feenableexcept(FE_INVALID);
    else
      fedisableexcept(FE_INVALID);
#else
    std::cerr << "WARNING: CAFAna/Core/Utilities.cxx built on OS X, no feenableexcept available" << std::endl;
#endif
  }

ana::FloatingExceptionOnNaN::~FloatingExceptionOnNaN

(

)

Definition at line 86 of file sbnana/sbnana/CAFAna/Core/Utilities.cxx.

  {
    fesetexceptflag(&fBackup, FE_INVALID);
  }

Member Data Documentation

fexcept_t ana::FloatingExceptionOnNaN::fBackup

protected

Definition at line 86 of file sbnana/sbnana/CAFAna/Core/Utilities.h.

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The documentation for this class was generated from the following files:

• sbnana/sbnana/CAFAna/Core/Utilities.h
• sbnana/sbnana/CAFAna/Core/Utilities.cxx