25 Numerics library [numerics]

25.7 Numeric arrays [numarray]

25.7.5 Class template slice_­array [template.slice.array]

25.7.5.4 Fill function [slice.arr.fill]

void operator=(const T&) const;
This function has reference semantics, assigning the value of its argument to the elements of the valarray<T> object to which the slice_­array object refers.