32   int           length_;  variable
38   StringPiece() : ptr_(NULL), length_(0) { }  in StringPiece()
40     : ptr_(str), length_((str == NULL) ? 0 : static_cast<int>(strlen(str))) { }  in StringPiece()
42     : ptr_(str.data()), length_(static_cast<int>(str.size())) { }  in StringPiece()
43   StringPiece(const char* offset, int len) : ptr_(offset), length_(len) { }  in StringPiece()
50   int size() const { return length_; }  in size()
51   int length() const { return length_; }  in length()
52   bool empty() const { return length_ == 0; }  in empty()
54   void clear() { ptr_ = NULL; length_ = 0; }  in clear()
55   void set(const char* data, int len) { ptr_ = data; length_ = len; }  in set()
59       length_ = static_cast<int>(strlen(str));  in set()
61       length_ = 0;  in set()
65     length_ = len;  in set()
72     length_ -= n;  in remove_prefix()
76     length_ -= n;  in remove_suffix()
80     int r = memcmp(ptr_, x.ptr_, std::min(length_, x.length_));  in compare()
82       if (length_ < x.length_) r = -1;  in compare()
83       else if (length_ > x.length_) r = +1;  in compare()
105     return ((length_ >= x.length_) &&  in starts_with()
106             (memcmp(ptr_, x.ptr_, x.length_) == 0));  in starts_with()
111     return ((length_ >= x.length_) &&  in ends_with()
112             (memcmp(ptr_ + (length_-x.length_), x.ptr_, x.length_) == 0));  in ends_with()
128   iterator end() const { return ptr_ + length_; }  in end()
130     return const_reverse_iterator(ptr_ + length_);  in rbegin()
136   int max_size() const { return length_; }  in max_size()
137   int capacity() const { return length_; }  in capacity()