sigFpe Class Reference

Set up trapping for floating point exceptions (signal FPE). More...

Classes
class	ignore

Public Member Functions
	sigFpe ()
	~sigFpe ()

Static Public Member Functions
static bool	requested ()
static bool	active ()
static bool	nanActive ()
static void	set (bool verbose=false)
static void	unset (bool verbose=false)
static void	fillNan (UList< scalar > &list)

Detailed Description

Set up trapping for floating point exceptions (signal FPE).

Defined by controlDict InfoSwitch entries:

• trapFpe

  Enable floating point exception trapping.

• setNaN

  Initialization all malloced memory to NaN. Combined with trapFpe, this causes usage of uninitialized scalars to trigger an abort.

  Environment variables:

  • FOAM_SIGFPE (true|false)

    overrides trapFpe

  • FOAM_SETNAN (true|false)

    overrides setNaN

    Note that trapping can be set/removed through the static member functions or through the scope of the object (constructor sets trapping; destructor restores original). The class behaves as a singleton.

Source files

• sigFpe.H
• sigFpe.C

Definition at line 69 of file sigFpe.H.

Constructor & Destructor Documentation

sigFpe()

sigFpe

(

)

Definition at line 127 of file sigFpe.C.

References Foam::BitOps::set().

Here is the call graph for this function:

~sigFpe()

~sigFpe

(

)

Definition at line 146 of file sigFpe.C.

References sigFpe::unset().

Here is the call graph for this function:

Member Function Documentation

requested()

bool requested ( )

static

Definition at line 170 of file sigFpe.C.

References isTrue().

Referenced by sigFpe::set().

Here is the call graph for this function:

Here is the caller graph for this function:

active()

static bool active ( )

inlinestatic

Definition at line 116 of file sigFpe.H.

nanActive()

static bool nanActive ( )

inlinestatic

Definition at line 122 of file sigFpe.H.

set()

void set ( bool  verbose = false )

static

Definition at line 176 of file sigFpe.C.

References Foam::endl(), Foam::Info, isTrue(), sigFpe::requested(), and Foam::setHandler().

Referenced by argList::parse(), and sigFpe::ignore::restore().

Here is the call graph for this function:

Here is the caller graph for this function:

unset()

void unset ( bool  verbose = false )

static

Definition at line 234 of file sigFpe.C.

References Foam::abort(), Foam::endl(), Foam::FatalError, FatalErrorInFunction, Foam::Info, and Foam::resetHandler().

Referenced by sigFpe::ignore::ignore(), and sigFpe::~sigFpe().

Here is the call graph for this function:

Here is the caller graph for this function:

fillNan()

void fillNan ( UList< scalar > &  list )

static

Definition at line 270 of file sigFpe.C.

Referenced by dynamicRefineFvMesh::mapFields().

Here is the caller graph for this function:

---

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

• src/OSspecific/POSIX/signals/sigFpe.H
• src/OSspecific/POSIX/signals/sigFpe.C