Stream-based logging test

main.cpp

#include <iostream>
#include <string>
#include <sstream>

using namespace std;


class LogHelper : public stringstream {
public:
    LogHelper(string level) {
        *this << "[" << level << "] ";
    }

    ~LogHelper() {
        // TODO: lock
        printf("%s\n", str().c_str());
        // TODO: unlock
    }
};

#define LOG(level) LogHelper(level)

int main(int argc, char** argv) {
    LOG("INIT") << "init text";
    LOG("ERROR") << "error text";

    return 0;
}

makefile

all: main

main: main.cpp
	clang++ -g -std=c++11 -o main main.cpp

run: main
	./main