Returns a reference to an element or its value at specified index or a specified subset.
Type& operator[](
size_t _Off
);
slice_array<Type> operator[](
slice _Slicearray
);
gslice_array<Type> operator[](
const gslice& _Gslicearray
);
mask_array<Type> operator[](
const valarray<bool>& _Boolarray
);
indirect_array<Type> operator[](
const valarray<size_t>& _Indarray
);
Type operator[](
size_t _Off
) const;
valarray<Type> operator[](
slice _Slice
) const;
valarray<Type> operator[](
const gslice& _Gslicearray
) const;
valarray<Type> operator[](
const valarray<bool>& _Boolarray
) const;
valarray<Type> operator[](
const valarray<size_t>& _Indarray
) const;
Parameters
_Off
The index of the element to be assigned a value._Slicearray
A slice_array of a valarray that specifies a subset to be selected or returned to a new valarray._Gslicearray
A gslice_array of a valarray that specifies a subset to be selected or returned to a new valarray._Boolarray
A bool_array of a valarray that specifies a subset to be selected or returned to a new valarray._Indarray
An indirect_array of a valarray that specifies a subset to be selected or returned to a new valarray.
Return Value
A reference to an element or its value at specified index or a specified subset.
Remarks
The member operator is overloaded to provide several ways to select sequences of elements from among those controlled by ***this. The first group of five member operators work in conjunction with various overloads of operator= (and other assigning operators) to allow selective replacement (slicing) of the controlled sequence. The selected elements must exist.
When compiling with _SECURE_SCL 1, a runtime error will occur if you attempt to access an element outside the bounds of the valarray. See Checked Iterators for more information.
Example
See the examples for slice::slice and gslice::gslice for an example of how to declare and use the operator.
Requirements
Header: <valarray>
Namespace: std