| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / 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/>. | |
| Class | |
| Foam::tmp | |
| Description | |
| A class for managing temporary objects | |
| SourceFiles | |
| tmpI.H | |
| See also | |
| Foam::refCount | |
| Foam::autoPtr | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class tmp Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| template<class T> | |
| class tmp | |
| { | |
| // Private Data | |
| //- Object types | |
| enum type | |
| { | |
| REUSABLE_TMP, | |
| NON_RESUSABLE_TMP, | |
| CONST_REF | |
| }; | |
| //- Type of object | |
| type type_; | |
| //- Pointer to object | |
| mutable T* ptr_; | |
| // Private Member Functions | |
| //- Return true if the object is a reusable or non-reusable temporary | |
| inline bool isAnyTmp() const; | |
| // Private Member Operators | |
| //- Increment the reference count | |
| inline void operator++(); | |
| public: | |
| // Public Type Definitions | |
| //- The type | |
| typedef T Type; | |
| //- The reference counting class | |
| typedef Foam::refCount refCount; | |
| // Constructors | |
| //- Store object pointer of a non-reusable or reusable temporary object | |
| inline explicit tmp(T* = 0, bool nonReusable = false); | |
| //- Store object const reference | |
| inline tmp(const T&); | |
| //- Construct copy and increment reference count | |
| inline tmp(const tmp<T>&); | |
| //- Construct copy moving content, does not increment reference count | |
| inline tmp(tmp<T>&&); | |
| //- Construct copy moving content, does not increment reference count | |
| inline tmp(const tmp<T>&&); | |
| //- Construct copy transferring content of temporary if required | |
| inline tmp(const tmp<T>&, bool allowTransfer); | |
| //- Construct from an expression | |
| template<class Expression, class = EnableIfExpression<Expression>> | |
| inline tmp(const Expression& e); | |
| //- Destructor. Deletes temporary object when the reference count is 0. | |
| inline ~tmp(); | |
| // Member Functions | |
| // Access | |
| //- Return true if this is really a temporary object | |
| inline bool isTmp() const; | |
| //- Return true if this temporary object empty, | |
| // ie, a temporary without allocation | |
| inline bool empty() const; | |
| //- Is this temporary object valid, | |
| // ie, it is a reference or a temporary that has been allocated | |
| inline bool valid() const; | |
| //- Return the type name of the tmp | |
| // constructed from the type name of T | |
| inline word typeName() const; | |
| // Edit | |
| //- Return non-const reference or generate a fatal error | |
| // if the object is const. | |
| inline T& ref() const; | |
| //- Return tmp pointer for reuse. | |
| // Returns a clone if the object is not a temporary | |
| inline T* ptr() const; | |
| //- If object pointer points to valid object: | |
| // delete object and set pointer to nullptr | |
| inline void clear() const; | |
| // Member Operators | |
| //- Deprecated non-const dereference operator. | |
| // Use ref() where non-const access is required | |
| inline T& operator()(); | |
| //- Const dereference operator | |
| inline const T& operator()() const; | |
| //- Const cast to the underlying type reference | |
| inline operator const T&() const; | |
| //- Return object pointer | |
| inline T* operator->(); | |
| //- Return const object pointer | |
| inline const T* operator->() const; | |
| //- Assignment to pointer changing this tmp to a temporary T | |
| inline void operator=(T*); | |
| //- Assignment transferring the temporary T to this tmp | |
| inline void operator=(const tmp<T>&); | |
| //- Move assignment transferring the temporary T to this tmp | |
| inline void operator=(tmp<T>&&); | |
| //- Move assignment transferring the temporary T to this tmp | |
| inline void operator=(const tmp<T>&&); | |
| }; | |
| namespace expression | |
| { | |
| template<class Type> | |
| struct Expressionable<tmp<Type>> | |
| : | |
| public NotExpressionable<Type> | |
| {}; | |
| } | |
| template<class T> | |
| Ostream& operator<<(Ostream& os, const tmp<T>& t); | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |