main.cpp

#include <cstdio>
#include <string>
#include <iostream>
using namespace std;
#include "lib.h"

Software::Software() {
    this->name = "unknown";
    this->type = "unknown";
    this->author = "unknown";
}

Software::Software(string name, string type, string author) {
    this->name = name;
    this->type = type;
    this->author = author;
}

string Software::get(int var) {
    if (var >= 0 && var <= 2) {
        if (var)
            return (var == 1) ? this->type : this->author;
        else
            return this->name;
    }
    else
        return "";
}

void Software::set(int var, string value) {
    if (var >= 0 && var <= 2) {
        if (var == 0)
            this->name = value;
        else if (var == 1)
            this->type = value;
        else
            this->author = value;
    }
}

void Software::print() {
    printf("Software:\nname: %s\ntype: %s\nauthor: %s\n", this->name.c_str(), this->type.c_str(), this->author.c_str());
}

int main(void) {
    Software a("name", "type", "author");
    a.print();
    printf("\n");
    a.set(sw_name, "---");
    a.print();

    return 0;
}