| std::mask_array< _Tp >(3cxx) | std::mask_array< _Tp >(3cxx) |
NAME¶
std::mask_array< _Tp > - Reference to selected subset of an array.
SYNOPSIS¶
#include <mask_array.h>
Public Types¶
typedef _Tp value_type
Public Member Functions¶
mask_array (const mask_array &)
Copy constructor. Both slices refer to the same underlying array.
template<class _Dom > void operator%=
(const _Expr< _Dom, _Tp > &) const
void operator%= (const valarray< _Tp >
&) const
Modulo slice elements by corresponding elements of v.
template<class _Dom > void operator&=
(const _Expr< _Dom, _Tp > &) const
void operator&= (const valarray< _Tp >
&) const
Logical and slice elements with corresponding elements of v.
template<class _Dom > void operator*=
(const _Expr< _Dom, _Tp > &) const
void operator*= (const valarray< _Tp >
&) const
Multiply slice elements by corresponding elements of v.
template<class _Dom > void operator+=
(const _Expr< _Dom, _Tp > &) const
void operator+= (const valarray< _Tp >
&) const
Add corresponding elements of v to slice elements.
template<class _Dom > void operator-=
(const _Expr< _Dom, _Tp > &) const
void operator-= (const valarray< _Tp >
&) const
Subtract corresponding elements of v from slice elements.
template<class _Dom > void operator/=
(const _Expr< _Dom, _Tp > &) const
void operator/= (const valarray< _Tp >
&) const
Divide slice elements by corresponding elements of v.
template<class _Dom > void
operator<<= (const _Expr< _Dom, _Tp >
&) const
void operator<<= (const valarray< _Tp
> &) const
Left shift slice elements by corresponding elements of v.
template<class _Dom > void operator=
(const _Expr< _Dom, _Tp > &) const
template<class _Ex > void operator=
(const _Expr< _Ex, _Tp > &__e) const
void operator= (const _Tp &) const
Assign all slice elements to t. mask_array &
operator= (const mask_array &)
Assignment operator. Assigns elements to corresponding elements of a.
void operator= (const valarray< _Tp >
&) const
template<class _Dom > void operator>>=
(const _Expr< _Dom, _Tp > &) const
void operator>>= (const valarray< _Tp
> &) const
Right shift slice elements by corresponding elements of v.
template<class _Dom > void operator^=
(const _Expr< _Dom, _Tp > &) const
void operator^= (const valarray< _Tp >
&) const
Logical xor slice elements with corresponding elements of v.
template<class _Dom > void operator|=
(const _Expr< _Dom, _Tp > &) const
void operator|= (const valarray< _Tp >
&) const
Logical or slice elements with corresponding elements of v.
Friends¶
class valarray< _Tp >
Detailed Description¶
template<class _Tp>¶
class std::mask_array< _Tp >"Reference to selected subset of an array.
A mask_array is a reference to the actual elements of an array specified by a bitmask in the form of an array of bool. The way to get a mask_array is to call operator[](valarray<bool>) on a valarray. The returned mask_array then permits carrying operations out on the referenced subset of elements in the original valarray.
For example, if a mask_array is obtained using the array (false, true, false, true) as an argument, the mask array has two elements referring to array[1] and array[3] in the underlying array.
Parameters
Definition at line 62 of file mask_array.h.
Member Typedef Documentation¶
template<class _Tp > typedef _Tp std::mask_array< _Tp >::value_type¶
Definition at line 65 of file mask_array.h.
Friends And Related Symbol Documentation¶
template<class _Tp > friend class valarray< _Tp > [friend]¶
Definition at line 127 of file mask_array.h.
Author¶
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