Finds the last occurrence of needle in haystack. The result is the offset reported to the beginning of haystack, or string::npos if needle wasn't found.

Synopsis

Declared in <folly/Range.h>

template<class Iter>
size_t
rfind(
    Range<Iter> const& haystack,
    Range<Iter>::value_type const& needle);

Specializations

Name

rfind<char const*>

rfind<unsigned char const*>

Return Value

The offset of the last match, or npos if not found.

Parameters

Name

Description

haystack

The range to search within.

needle

The element to search for.

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