ref: 0aa3903a4adf4aaa9b211cfac51d6ebb1d714493 dir: /libentcode/bitrenc.c/
#include "bitrenc.h" void ec_bitree_update(unsigned *_this,int _sz,int _sym,int _val){ do{ _this[_sym]+=_val; _sym+=_sym+1&-(_sym+1); } while(_sym<_sz); }