std::mask_array(3)

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
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
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
void operator<<= (const valarray< _Tp > &) const
template<class _Ex > void operator= (const _Expr< _Ex, _Tp > &__e) const
template<class _Dom > void operator= (const _Expr< _Dom, _Tp > &) const
void operator= (const _Tp &) const
void operator= (const valarray< _Tp > &) const
mask_array & operator= (const mask_array &)
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
void operator|= (const valarray< _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 66 of file mask_array.h.

Author

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