Method find_first_not_of

be/src/gutil/strings/stringpiece.cc:144–158

}

int StringPiece::find_first_not_of(StringPiece s, size_type pos) const {
  if (length_ <= 0) return npos;
  if (s.length_ <= 0) return 0;
  // Avoid the cost of BuildLookupTable() for a single-character search.
  if (s.length_ == 1) return find_first_not_of(s.ptr_[0], pos);

  bool lookup[UCHAR_MAX + 1] = { false };
  BuildLookupTable(s, lookup);
  for (int i = pos; i < length_; ++i) {
    if (!lookup[static_cast<unsigned char>(ptr_[i])]) {
      return i;
    }
  }
  return npos;
}

int StringPiece::find_first_not_of(char c, size_type pos) const {
  if (length_ <= 0) return npos;