// -*- mode: c++ -*- // $Id: hash2.g++,v 1.2 2001/06/20 03:20:02 doug Exp $ // http://www.bagley.org/~doug/shootout/ #include <stdio.h> #include <iostream> #include <hash_map.h> using namespace std; struct eqstr { bool operator()(const char* s1, const char* s2) const { return strcmp(s1, s2) == 0; } }; int main(int argc, char *argv[]) { int n = ((argc == 2) ? atoi(argv[1]) : 1); char buf[16]; typedef hash_map<const char*, int, hash<const char*>, eqstr> HM; HM hash1, hash2; for (int i=0; i<10000; i++) { sprintf(buf, "foo_%d", i); hash1[strdup(buf)] = i; } for (int i=0; i<n; i++) { for (HM::iterator k = hash1.begin(); k != hash1.end(); ++k) { hash2[(*k).first] += hash1[(*k).first]; } } cout << hash1["foo_1"] << " " << hash1["foo_9999"] << " " << hash2["foo_1"] << " " << hash2["foo_9999"] << endl; }