53   StringPiece(const char* offset, int len) : ptr_(offset), length_(len) { }  in StringPiece()  argument
68   void set(const char* data, int len) {  in set()  argument
70     length_ = len;  in set()
79   void set(const void* data, int len) {  in set()  argument
81     length_ = len;  in set()
162   int len = x.size();
163   if (len != y.size()) {
172   if (len <= 0) {
177   if (p1[len-1] != p2[len-1]) return false;
178   if (len == 1) return true;
182   len &= ~1;
184   return memcmp(p1, p2, len) == 0;