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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2026 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
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.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Global
Foam::*Op
Description
Operation classes containing functions and operators used by
templated reduction and distribution functions.
\*---------------------------------------------------------------------------*/
#ifndef ops_H
#define ops_H
#include "expressionName.H"
#include "VoidT.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class nopOp Declaration
\*---------------------------------------------------------------------------*/
struct nopOp
{
static inline const word::Null prefix;
static inline const word::Null postfix;
static const signed char precedence =
expression::Operation<void>::precedence;
template<class X>
static X value(const X& x)
{
return x;
}
template<class X>
auto operator()(const X& x) const
{
return x;
}
};
/*---------------------------------------------------------------------------*\
Class promoteOp Declaration
\*---------------------------------------------------------------------------*/
struct promoteOp
{
static inline const word::Null prefix;
static inline const word::Null postfix;
static const signed char precedence = 2;
template<class X>
static X value(const X& x)
{
return x;
}
template<class X>
auto operator()(const X& x) const
{
return x;
}
};
/*---------------------------------------------------------------------------*\
Class negateOp Declaration
\*---------------------------------------------------------------------------*/
struct negateOp
{
static inline const char prefix = '-';
static inline const word::Null postfix;
static const signed char precedence = 2;
template<class X>
static auto value(const X& x)
{
return -x;
}
template<class X>
auto operator()(const X& x) const
{
return -x;
}
};
/*---------------------------------------------------------------------------*\
Class notOp Declaration
\*---------------------------------------------------------------------------*/
struct notOp
{
static inline const char prefix = '!';
static inline const word::Null postfix;
static const signed char precedence = 2;
template<class X>
static auto value(const X& x)
{
return !x;
}
template<class X>
auto operator()(const X& x) const
{
return !x;
}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// Unary functions
#define UnaryFunctionOp(Func) \
struct Func##Op \
{ \
static inline const char* prefix = #Func"("; \
static inline const char postfix = ')'; \
\
static const signed char precedence = \
expression::Operation<void>::precedence; \
\
template<class Type> \
static auto value(const Type x) \
{ \
return Func(x); \
} \
\
template<class Type> \
auto operator()(const Type x) const \
{ \
return Func(x); \
} \
};
UnaryFunctionOp(sqr)
UnaryFunctionOp(mag)
UnaryFunctionOp(magSqr)
UnaryFunctionOp(cmptMax)
UnaryFunctionOp(cmptMin)
UnaryFunctionOp(cmptAv)
UnaryFunctionOp(cmptMag)
/*---------------------------------------------------------------------------*\
Class addOp Declaration
\*---------------------------------------------------------------------------*/
struct addOp
{
static inline const word::Null prefix;
static inline const char infix = '+';
static inline const word::Null postfix;
static const signed char precedence = 0;
static const bool associative = true;
template<class A, class B>
using EnableIfDefinedFor =
VoidT<decltype(std::declval<A>() + std::declval<B>())>;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return a + b;
}
template<class A, class B>
auto operator()(const A& a, const B& b) const
{
return a + b;
}
static word name(const word& x)
{
return word("sum(", x, ')');
}
template<class X>
static const X& identity()
{
return pTraits<X>::zero;
}
};
// Alias for addOp for readability of summation reduction operations
using sumOp = addOp;
/*---------------------------------------------------------------------------*\
Class subtractOp Declaration
\*---------------------------------------------------------------------------*/
struct subtractOp
{
static inline const word::Null prefix;
static inline const char infix = '-';
static inline const word::Null postfix;
static const signed char precedence = 0;
static const bool associative = false;
template<class A, class B>
using EnableIfDefinedFor =
VoidT<decltype(std::declval<A>() - std::declval<B>())>;
template<class A, class B>
auto operator()(const A& a, const B& b) const
{
return a - b;
}
template<class A, class B>
static auto value(const A& a, const B& b)
{
return a - b;
}
};
/*---------------------------------------------------------------------------*\
Class multiplyOp Declaration
\*---------------------------------------------------------------------------*/
struct multiplyOp
{
static inline const word::Null prefix;
static inline const char infix = '*';
static inline const word::Null postfix;
static const signed char precedence = 1;
static const bool associative = true;
template<class A, class B>
using EnableIfDefinedFor =
VoidT<decltype(std::declval<A>()*std::declval<B>())>;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return a*b;
}
template<class A, class B>
auto operator()(const A& a, const B& b) const
{
return a*b;
}
};
/*---------------------------------------------------------------------------*\
Class divideOp Declaration
\*---------------------------------------------------------------------------*/
struct divideOp
{
static inline const word::Null prefix;
static inline const char infix = '|';
static inline const word::Null postfix;
static const signed char precedence = 1;
static const bool associative = false;
template<class A, class B>
using EnableIfDefinedFor =
VoidT<decltype(std::declval<A>()/std::declval<B>())>;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return a/b;
}
template<class A, class B>
auto operator()(const A& a, const B& b) const
{
return a/b;
}
};
/*---------------------------------------------------------------------------*\
Class innerOp Declaration
\*---------------------------------------------------------------------------*/
struct innerOp
{
static inline const word::Null prefix;
static inline const char infix = '&';
static inline const word::Null postfix;
static const signed char precedence = 1;
static const bool associative = false;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return a & b;
}
};
/*---------------------------------------------------------------------------*\
Class crossOp Declaration
\*---------------------------------------------------------------------------*/
struct crossOp
{
static inline const word::Null prefix;
static inline const char infix = '^';
static inline const word::Null postfix;
static const signed char precedence = 1;
static const bool associative = false;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return a ^ b;
}
};
/*---------------------------------------------------------------------------*\
Class stabiliseOp Declaration
\*---------------------------------------------------------------------------*/
struct stabiliseOp
{
static inline const char* prefix = "stabilise(";
static inline const char infix = ',';
static inline const char postfix = ')';
static const signed char precedence =
expression::Operation<void>::precedence;
static const bool associative = false;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return stabilise(a, b);
}
template<class A, class B>
auto operator()(const A& a, const B& b) const
{
return stabilise(a, b);
}
};
/*---------------------------------------------------------------------------*\
Class maxOp Declaration
\*---------------------------------------------------------------------------*/
struct maxOp
{
static inline const char* prefix = "max(";
static inline const char infix = ',';
static inline const char postfix = ')';
static const signed char precedence =
expression::Operation<void>::precedence;
static const bool associative = false;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return max(a, b);
}
template<class A, class B>
auto operator()(const A& a, const B& b) const
{
return max(a, b);
}
static word name(const word& x)
{
return word("max(", x, ')');
}
template<class X>
static const X& identity()
{
return pTraits<X>::min;
}
};
/*---------------------------------------------------------------------------*\
Class minOp Declaration
\*---------------------------------------------------------------------------*/
struct minOp
{
static inline const char* prefix = "min(";
static inline const char infix = ',';
static inline const char postfix = ')';
static const signed char precedence =
expression::Operation<void>::precedence;
static const bool associative = false;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return min(a, b);
}
template<class A, class B>
auto operator()(const A& a, const B& b) const
{
return min(a, b);
}
static word name(const word& x)
{
return word("min(", x, ')');
}
template<class X>
static const X& identity()
{
return pTraits<X>::max;
}
};
/*---------------------------------------------------------------------------*\
Class minModOp Declaration
\*---------------------------------------------------------------------------*/
struct minModOp
{
static inline const char* prefix = "minMod(";
static inline const char infix = ',';
static inline const char postfix = ')';
static const signed char precedence =
expression::Operation<void>::precedence;
static const bool associative = false;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return minMod(a, b);
}
template<class A, class B>
auto operator()(const A& a, const B& b) const
{
return minMod(a, b);
}
template<class X>
static const X& identity()
{
return pTraits<X>::max;
}
};
/*---------------------------------------------------------------------------*\
Class cmptMultiplyOp Declaration
\*---------------------------------------------------------------------------*/
struct cmptMultiplyOp
{
static inline const char* prefix = "cmptMultiply(";
static inline const char infix = ',';
static inline const char postfix = ')';
static const signed char precedence = 1;
static const bool associative = true;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return cmptMultiply(a, b);
}
template<class A, class B>
auto operator()(const A& a, const B& b) const
{
return cmptMultiply(a, b);
}
};
/*---------------------------------------------------------------------------*\
Class cmptDivideOp Declaration
\*---------------------------------------------------------------------------*/
struct cmptDivideOp
{
static inline const char* prefix = "cmptDivide(";
static inline const char infix = ',';
static inline const char postfix = ')';
static const signed char precedence = 1;
static const bool associative = false;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return cmptDivide(a, b);
}
template<class A, class B>
auto operator()(const A& a, const B& b) const
{
return cmptDivide(a, b);
}
};
/*---------------------------------------------------------------------------*\
Class cmptPowOp Declaration
\*---------------------------------------------------------------------------*/
struct cmptPowOp
{
static inline const char* prefix = "cmptPow(";
static inline const char infix = ',';
static inline const char postfix = ')';
static const signed char precedence =
expression::Operation<void>::precedence;
static const bool associative = false;
template<class A, class B>
static auto value(const A& a, const B& b)
{
return cmptPow(a, b);
}
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#define EqOp(opName, op) \
struct opName##Op \
{ \
template<class T1, class T2> \
void operator()(T1& x, const T2& y) const \
{ \
op; \
} \
};
EqOp(eq, x = y)
EqOp(addEq, x += y)
EqOp(maxEq, x = max(x, y))
EqOp(minEq, x = min(x, y))
EqOp(minMagSqrEq, x = (magSqr(x) <= magSqr(y) ? x : y))
EqOp(maxMagSqrEq, x = (magSqr(x) >= magSqr(y) ? x : y))
EqOp(andEq, x = (x && y))
EqOp(orEq, x = (x || y))
#undef EqOp
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#define Op(opName, op) \
struct opName##Op \
{ \
template<class T1, class T2> \
auto operator()(const T1& x, const T2& y) const \
{ \
return op; \
} \
};
Op(minMagSqr, (magSqr(x) <= magSqr(y) ? x : y))
Op(maxMagSqr, (magSqr(x) >= magSqr(y) ? x : y))
Op(and, x && y)
Op(or, x || y)
Op(less, x < y)
Op(lessEq, x <= y)
Op(greater, x > y)
Op(greaterEq, x >= y)
#undef Op
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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