Simple example of using the readline library from C++

Makefile

CXXFLAGS=-I/usr/local/include --std=c++11
LDFLAGS=-L/usr/local/lib -lreadline

rltest: rltest.cpp

clean:
	- /bin/rm rltest

rltest.cpp

// Simple test of readline

#include <iostream>

#include "readline/readline.h"
#include "readline/history.h"

using namespace std;

int main(int argc, char** argv)
{
    const char *line;
    while ((line = readline("? ")) != nullptr) {
        cout << "[" << line << "]" << endl;
        if (*line) add_history(line);
        free(line);
    }

    return 0;
}

This code is very helpful, thanks for this example!