c++ 2 Constructor 1 Object, How to? - c++

Question

I have to set up an object and, after an user chose, i have to change some param into the object but not every each.
example:
{
class Champ
{
private:
int hp;
std::string class;
public:
Champ();
Champ(std::string chose);
};
Champ::Champ() {hp=10; class="";}
Champ::Champ(std::string chose) {class = chose;}
main()
{
Champ Test;
std::string chose;
getline(cin,chose);
Test(chose);
return 0;
}
this code give me an error.
i need hp equal for all "Champ" created but class can be changed.
The hp can't be "const" because this value may undergo changes...
how can i do this? :/

Answer 1

The comments in the code below should explain what is going on well enough...
#include <iostream>
#include <string>
class Champ {
int hp;
std::string job;
public:
Champ():
hp(10) { } // don't need to explicitly initialize `job` because the default constructor for string does what we want.
explicit Champ(const std::string& choose):
hp(10),
job(choose) { }
};
int main(int argc, const char * argv[]) {
using namespace std;
// this is most like how you had it with the compile error fixed.
{
Champ test; // this creates a Champ object using the default constructor
string choose;
getline(cin, choose);
test = Champ(choose); // this creates a new Champ object and assigns it to test... Throwing away the one that was created earlier.
}
// this is, imho, a better way to do it:
{
string choose;
getline(cin, choose);
auto test = Champ(choose); // declare the variable as late as possible, and after you have all the data for its construction. That way, you only make one of them.
}
return 0;
}