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0026549: Provide move constructors and operators for basic classes

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Move constructor and operator added for opencascade::handle<>
This commit is contained in:
abv 2015-08-11 23:01:05 +03:00
parent 4796758e8d
commit 5d351a0822
1 changed files with 47 additions and 0 deletions
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47
src/Standard/Standard_Handle.hxx
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@ -69,6 +69,12 @@ namespace opencascade {
BeginScope();
}
//! Move constructor
handle (handle&& theHandle) : entity(theHandle.entity)
{
theHandle.entity = 0;
}
//! Destructor
~handle ()
{
@ -104,6 +110,13 @@ namespace opencascade {
return *this;
}
//! Move operator
handle& operator= (handle&& theHandle)
{
std::swap (this->entity, theHandle.entity);
return *this;
}
//! STL-like cast to pointer to referred object
const T* get () const { return static_cast<const T*>(this->entity); }
@ -220,6 +233,14 @@ namespace opencascade {
BeginScope();
}
//! Generalized move constructor
template <class T2, typename = typename std::enable_if <is_base_but_not_same <T, T2>::value>::type>
handle (handle<T2>&& theHandle)
: entity(theHandle.entity)
{
theHandle.entity = 0;
}
//! Generalized assignment operator
template <class T2, typename = typename std::enable_if <is_base_but_not_same <T, T2>::value>::type>
handle operator = (const handle<T2>& theHandle)
@ -228,6 +249,14 @@ namespace opencascade {
return *this;
}
//! Generalized move operator
template <class T2, typename = typename std::enable_if <is_base_but_not_same <T, T2>::value>::type>
handle& operator= (handle<T2>&& theHandle)
{
std::swap (this->entity, theHandle.entity);
return *this;
}
#else
//! Upcast to const reference to base type.
@ -260,6 +289,14 @@ namespace opencascade {
BeginScope();
}
//! Generalized move constructor
template <class T2>
handle (handle<T2>&& theHandle, typename std::enable_if <is_base_but_not_same <T, T2>::value>::type* = nullptr)
: entity(theHandle.entity)
{
theHandle.entity = 0;
}
//! Generalized assignment operator.
template <class T2>
handle operator = (const handle<T2>& theHandle)
@ -270,6 +307,16 @@ namespace opencascade {
return *this;
}
//! Generalized move operator
template <class T2>
handle& operator= (handle<T2>&& theHandle)
{
std::enable_if <is_base_but_not_same <T, T2>::value, void*>::type aTypeCheckHelperVar;
(void)aTypeCheckHelperVar;
std::swap (this->entity, theHandle.entity);
return *this;
}
#else
//! Upcast to const reference to base type.