29 Numerics library [numerics]

29.6 Numeric arrays [numarray]

29.6.7 Class template gslice_array [template.gslice.array]

29.6.7.2 Assignment [gslice.array.assign]

void operator=(const valarray<T>&) const; const gslice_array& operator=(const gslice_array&) const;
These assignment operators have reference semantics, assigning the values of the argument array elements to selected elements of the valarray<T> object to which the gslice_array refers.