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zero.H
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2011-2020 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Class
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Foam::zero
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Description
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A class representing the concept of 0 used to avoid unnecessary
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manipulations for objects that are known to be zero at compile-time.
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SourceFiles
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zeroI.H
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\*---------------------------------------------------------------------------*/
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#ifndef zero_H
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#define zero_H
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#include "
label.H
"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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namespace
Foam
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{
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/*---------------------------------------------------------------------------*\
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Class zero Declaration
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\*---------------------------------------------------------------------------*/
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class
zero
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{
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public
:
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typedef
zero
value_type
;
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// Constructors
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//- Construct null
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zero
()
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{}
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// Member Operators
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//- Return 0 for bool
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inline
operator
bool()
const
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{
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return
0;
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}
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//- Return 0 for label
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inline
operator
label
()
const
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{
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return
0;
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}
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//- Return 0 for float
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inline
operator
float()
const
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{
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return
0;
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}
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//- Return 0 for double
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inline
operator
double()
const
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{
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return
0;
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}
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//- Return 0 for double
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inline
operator
long
double()
const
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{
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return
0;
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}
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};
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// Global zero
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static
const
zero
Zero
;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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}
// End namespace Foam
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#include "
zeroI.H
"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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#endif
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// ************************************************************************* //
Foam::zero
A class representing the concept of 0 used to avoid unnecessary manipulations for objects that are kn...
Definition:
zero.H:50
Foam::zero::value_type
zero value_type
Definition:
zero.H:53
Foam::zero::zero
zero()
Construct null.
Definition:
zero.H:58
label.H
Foam
Namespace for OpenFOAM.
Definition:
atmBoundaryLayer.H:214
Foam::Zero
static const zero Zero
Definition:
zero.H:97
Foam::label
intWM_LABEL_SIZE_t label
A label is an int32_t or int64_t as specified by the pre-processor macro WM_LABEL_SIZE.
Definition:
label.H:59
zeroI.H
src
OpenFOAM
primitives
zero
zero.H
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