__valarray_fill
__valarray_fill (_Array<_Tp> __a, size_t __n, const _Tp& __t)
__valarray_fill (_Array<_Tp> __a, size_t __n, size_t __s, const _Tp& __t)
__valarray_fill (_Array<_Tp> __a, _Array<size_t> __i,
__valarray_fill (_Tp* __restrict__ __a, size_t __n, const _Tp& __t)
__valarray_fill (_Tp* __restrict__ __a, size_t __n,
__valarray_fill(_Tp* __restrict__ __a, const size_t* __restrict__ __i,