source: doc/papers/OOPSLA17/evaluation/cpp-print.hpp@ 6b228cae

#pragma once
#include <iomanip>
#include <iostream>
#include "cpp-pair.hpp"

template<typename T> void print(std::ostream& out, const T& x) { out << x; }

template<> void print<bool>(std::ostream& out, const bool& x) { out << (x ? "true" : "false"); }

template<> void print<char>(std::ostream& out, const char& x ) {
        if ( 0x20 <= x && x <= 0x7E ) { out << "'" << x << "'"; }
        else { out << "'\\" << std::hex << (unsigned int)x << std::setbase(0) << "'"; }
}

template<typename R, typename S> 
std::ostream& operator<< (std::ostream& out, const pair<R, S>& x) {
        out << "[";
        print(out, x.first);
        out << ", ";
        print(out, x.second);
        return out << "]";
}

template<typename T, typename... Args> 
void print(std::ostream& out, const T& arg, const Args&... rest) {
        out << arg;
        print(out, rest...);
}