Method find_last_of

ext/src/llvm/StringRef.cpp:277–287

find_last_of - Find the last character in the string that is in \arg C, or npos if not found. Note: O(size() + Chars.size())

///
/// Note: O(size() + Chars.size())
StringRef::size_type StringRef::find_last_of(StringRef Chars,
                                             size_t From) const {
  std::bitset<1 << CHAR_BIT> CharBits;
  for (size_type i = 0; i != Chars.size(); ++i)
    CharBits.set((unsigned char)Chars[i]);

  for (size_type i = std::min(From, Length) - 1, e = -1; i != e; --i)
    if (CharBits.test((unsigned char)Data[i]))
      return i;
  return npos;
}

/// find_last_not_of - Find the last character in the string that is not
/// \arg C, or npos if not found.