25 Localization library [localization]

25.4 Standard locale categories [locale.categories]

25.4.1 The ctype category [category.ctype]

25.4.1.3 ctype specializations [facet.ctype.special]

25.4.1.3.3 ctype<char> static members [facet.ctype.char.statics]

static const mask* classic_table() noexcept;

Returns: A pointer to the initial element of an array of size table_­size which represents the classifications of characters in the "C" locale.