Find the last occurrence of a sequence in this string.
Declared in <bslstl_string.h>
size_type
rfind(
CHAR_TYPE const* characterString,
size_type position,
size_type numChars) const;Return the starting position of the last occurrence of a substring whose value equals that of the specified characterString of the optionally specified numChars length, if such a substring can be found in this string (on or before the optionally specified position if such a position is specified), and return npos otherwise. If numChars is not specified, CHAR_TRAITS::length(characterString) is used.
position of the match, or npos if not found
| Name | Description |
|---|---|
| characterString | pointer to characters |
| position | starting index |
| numChars | number of characters |