49   StringPiece() : ptr_(NULL), length_(0) { }  in StringPiece()
51     : ptr_(str), length_((str == NULL) ? 0 : strlen(str)) { }  in StringPiece()
53     : ptr_(str.data()), length_(str.size()) { }  in StringPiece()
55     : ptr_(offset), length_(len) { }  in StringPiece()
62   size_type size() const { return length_; }  in size()
63   size_type length() const { return length_; }  in length()
64   bool empty() const { return length_ == 0; }  in empty()
68     length_ = 0;  in clear()
72     length_ = len;  in set()
76     length_ = str ? strlen(str) : 0;  in set()
80     length_ = len;  in set()
87     length_ -= n;  in remove_prefix()
91     length_ -= n;  in remove_suffix()
96         ptr_, x.ptr_, (length_ < x.length_ ? length_ : x.length_));  in compare()
98       if (length_ < x.length_) r = -1;  in compare()
99       else if (length_ > x.length_) r = +1;  in compare()
114     return ((length_ >= x.length_) &&  in starts_with()
115             (wordmemcmp(ptr_, x.ptr_, x.length_) == 0));  in starts_with()
120     return ((length_ >= x.length_) &&  in ends_with()
121             (wordmemcmp(ptr_ + (length_-x.length_), x.ptr_, x.length_) == 0));  in ends_with()
125   iterator end() const { return ptr_ + length_; }  in end()
127     return const_reverse_iterator(ptr_ + length_);  in rbegin()
133   size_type max_size() const { return length_; }  in max_size()
134   size_type capacity() const { return length_; }  in capacity()
164   size_type     length_;  variable