#ifndef CORE_USING_H_
#define CORE_USING_H_

// Convenience things to just have in the namespace
// Include this file last, and only ever in cpp files, not other header files.
using std::vector;
using std::string;
using std::cout;
using std::cerr;
using std::cin;
using std::endl;
using std::istream;
using std::ostream;
using std::ifstream;
using std::ofstream;
using std::ostringstream;
using std::istringstream;

#endif
