...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
(Inherited from grammar::string_view_base
)
Return the position of matching characters.
constexpr size_type rfind( char const* s, size_type pos = string_view::npos) const;
See string_view::rfind