[Bug libstdc++/113160] Const valarray (g)slice and indirect_array fail to match valarray in template functions

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113160

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Or more precisely, you can't deduce a const valarray<T> from it.