Find the last occurrence of a string within the string.

Synopsis

template<
    typename T,
    [role red error.class-detail-template.1][role red error.class-detail-template.2] = detail::enable_if_viewable_t<T, CharT, Traits>>
BOOST_STATIC_STRING_CPP14_CONSTEXPR size_type
rfind(
    const T& t,
    size_type pos = npos) const;

Description

Constructs a temporary string_view_type object sv from t, and finds the last occurrence of sv within the string starting before or at the index pos.

Complexity

Linear.

Template Parameters

Constraints

std::is_convertible<const T&, string_view>::value && !std::is_convertible<const T&, const CharT*>::value.

Return Value

The highest index idx less than or equal to pos where each element of [sv.begin(), sv.end()) is equal to that of [begin() + idx, begin() + idx + count) if one exists, and basic_static_string::npos otherwise.

Parameters