Standard Template Library Programmer's Guide

size_type rfind(charT c, size_type pos = npos) const basic_string Searches backward for the character c, beginning at character position min(pos, size(). size_type find_first_of(const basic_string& s, size_type pos = 0) const basic_string Searches within *this, beginning at pos, for the first character that is equal to any character within s. size_type find_first_of(const charT* s, size_type pos, size_type n) const basic_string Searches within *this, beginning at pos, for the first character that is equal to any character within the first n characters of s. size_type find_first_of(const charT* s, size_type pos = 0) const basic_string Searches within *this, beginning at pos, for the first character that is equal to any character within s. size_type find_first_of(charT c, size_type pos = 0) const basic_string Searches within *this, beginning at pos, for the first character that is equal to c. size_type find_first_not_of(const basic_string& s, size_type pos = 0) const basic_string Searches within *this, beginning at pos, for the first character that is not equal to any character within s. size_type find_first_not_of(const charT* s, size_type pos, size_type n) const basic_string Searches within *this, beginning at pos, for the first character that is not equal to any character within the first n characters of s. size_type find_first_not_of(const charT* s, size_type pos = 0) const basic_string Searches within *this, beginning at pos, for the first character that is not equal to any character within s. size_type find_first_not_of(charT c, size_type pos = 0) const basic_string Searches within *this, beginning at pos, for the first character that is not equal to c. size_type find_last_of(const basic_string& s, size_type pos = npos) const basic_string Searches backward within *this, beginning at min(pos, size()), for the first character that is equal to any character within s. size_type find_last_of(const charT* s, size_type pos, size_type n) const basic_string Searches backward within *this, beginning at min(pos, size()), for the first character that is equal to any character within the first n characters of s. size_type find_last_of(const charT* s, size_type pos = npos) const basic_string Searches backward *this, beginning at min(pos, size()), for the first character that is equal to any character within s. size_type find_last_of(charT c, size_type pos = npos) const basic_string Searches backward *this, beginning at min(pos, size()), for the first character that is equal to c.