Manpages - std_mask_array.3

NAME
SYNOPSIS
Detailed Description
- “template<class _Tp>
Member Typedef Documentation
- template<class _Tp > typedef _Tp *std::mask_array*< _Tp >::value_type
Friends And Related Function Documentation
- template<class _Tp > friend class *valarray*< _Tp >= [friend]=
Author

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

Tp Element type.

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 Function Documentation

template<class _Tp > friend class valarray< _Tp >= [friend]=

Definition at line 127 of file mask_array.h.

Author

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