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std::mask_array.3cxx

NAME

std::mask_array -

Reference to selected subset of an array.

SYNOPSIS

Public Types

typedef _Tp value_type

Public Member Functions

mask_array (const mask_array &)

template<class _Dom > void operator%= (const _Expr< _Dom, _Tp > &) const

void operator%= (const valarray< _Tp > &) const

void operator&= (const valarray< _Tp > &) const

template<class _Dom > void operator&= (const _Expr< _Dom, _Tp > &) const

template<class _Dom > void operator*= (const _Expr< _Dom, _Tp > &) const

void operator*= (const valarray< _Tp > &) const

template<class _Dom > void operator+= (const _Expr< _Dom, _Tp > &) const

void operator+= (const valarray< _Tp > &) const

void operator-= (const valarray< _Tp > &) const

template<class _Dom > void operator-= (const _Expr< _Dom, _Tp > &) const

template<class _Dom > void operator/= (const _Expr< _Dom, _Tp > &) const

void operator/= (const valarray< _Tp > &) const

void operator<<= (const valarray< _Tp > &) const

template<class _Dom > void operator<<= (const _Expr< _Dom, _Tp > &) const

template<class _Dom > void operator= (const _Expr< _Dom, _Tp > &) const

mask_array & operator= (const mask_array &)

void operator= (const valarray< _Tp > &) const

template<class _Ex > void operator= (const _Expr< _Ex, _Tp > &__e) const

void operator= (const _Tp &) const

void operator>>= (const valarray< _Tp > &) const

template<class _Dom > void operator>>= (const _Expr< _Dom, _Tp > &) const

void operator^= (const valarray< _Tp > &) const

template<class _Dom > void operator^= (const _Expr< _Dom, _Tp > &) const

void operator|= (const valarray< _Tp > &) const

template<class _Dom > void operator|= (const _Expr< _Dom, _Tp > &) const

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:

Tp Element type.

Definition at line 61 of file mask_array.h.

Member Function Documentation

template<class _Tp> void std::mask_array< _Tp >::operator%= (const valarray< _Tp > &) const

Modulo slice elements by corresponding elements of v.

template<class _Tp> void std::mask_array< _Tp >::operator&= (const valarray< _Tp > &) const

Logical and slice elements with corresponding elements of v.

template<class _Tp> void std::mask_array< _Tp >::operator*= (const valarray< _Tp > &) const

Multiply slice elements by corresponding elements of v.

template<class _Tp> void std::mask_array< _Tp >::operator+= (const valarray< _Tp > &) const

Add corresponding elements of v to slice elements.

template<class _Tp> void std::mask_array< _Tp >::operator-= (const valarray< _Tp > &) const

Subtract corresponding elements of v from slice elements.

template<class _Tp> void std::mask_array< _Tp >::operator/= (const valarray< _Tp > &) const

Divide slice elements by corresponding elements of v.

template<class _Tp> void std::mask_array< _Tp >::operator<<= (const valarray< _Tp > &) const

Left shift slice elements by corresponding elements of v.

template<class _Tp> void std::mask_array< _Tp >::operator>>= (const valarray< _Tp > &) const

Right shift slice elements by corresponding elements of v.

template<class _Tp> void std::mask_array< _Tp >::operator^= (const valarray< _Tp > &) const

Logical xor slice elements with corresponding elements of v.

template<class _Tp> void std::mask_array< _Tp >::operator|= (const valarray< _Tp > &) const

Logical or slice elements with corresponding elements of v.

Author

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