labelSpecific.H

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    Copyright (C) 2014-2017 OpenFOAM Foundation
    Copyright (C) 2023 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
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Typedef
    Foam::label
 
Description
    label specific functions for which there is no uLabel equivalent
 
\*---------------------------------------------------------------------------*/
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
//- Return 1 if s is greater_equal zero, or otherwise -1
inline label sign(const label s) noexcept
{
    return (s >= 0)? 1: -1;
}
 
 
//- Return 1 if s is greater_equal zero, or otherwise 0
inline label pos0(const label s) noexcept
{
    return (s >= 0)? 1: 0;
}
 
 
//- Return 1 if s is less than zero, or otherwise 0
inline label neg(const label s) noexcept
{
    return (s < 0)? 1: 0;
}
 
 
//- Return 1 if s is less_equal zero, or otherwise 0
inline label neg0(const label s) noexcept
{
    return (s <= 0)? 1: 0;
}
 
 
//- Return the positive part of s, otherwise zero. Same as max(0, s).
inline label posPart(const label s) noexcept
{
    return (s > 0)? s: 0;
}
 
 
//- Return the negative part of s, otherwise zero. Same as min(0, s).
//  Does not change the sign
inline label negPart(const label s) noexcept
{
    return (s < 0)? s: 0;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //