std::mask_array< _Tp > Class Template Reference
[Numeric Arrays]

Reference to selected subset of an array. More...

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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.


The documentation for this class was generated from the following file:

Generated on Thu Jul 23 21:18:01 2009 for libstdc++ by  doxygen 1.5.8