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;
}

Just what I needed, thank you!

Changed slightly to work on Mac OS X 10.12:

#include
#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((void *)line);
}
return 0;
}

And compiled directly with g++ rl.cpp -lreadline

I love this code, thanks very much

This code is very helpful, thanks for this example!