The <locale> synopsis in [locale.syn] calls out an explicit specialization for ctype_byname<char>, however no such specialization is defined in the standard. The only reference I can find to ctype_byname<char> is [locale.facet]:Table 77 — Required specializations (for facets) which also refers to ctype_byname<wchar_t> which has no special consideration.

Is the intent an explicit instantiation which would use a slightly different syntax? Should the explicit specialization simply be struck?