А>std::vector<char> cont;
А>std::vector<char>::iterator it = cont.begin();
А>while ((it = std::search(it, cont.end(), from.begin(), from.end())) != cont.end())
А>{
А>    it = cont.erase(it, it + from.size());
А>    cont.insert(it, to.begin(), to.end());
А>}
А>