#ifndef __COORDONNEES_
#define __COORDONNEES_

#include "stdint.h"

class Coordonnees
{
    private : 
        int         _x;
        int         _y;
        int16_t         _angle;
        const int16_t   _maxX;
        const int16_t   _maxY;
        const int16_t   _minAngle;
        const int16_t   _maxAngle;
        
        bool            _depassementX;
        bool            _depassementY;
    
    public  :
        Coordonnees(int x, int y);
};

#endif

#include "Coordonnees.hpp"

Coordonnees::Coordonnees(int x, int y){
    _x              =   x;
    _y              =   y;
    
    _angle          =   0;
    
    _maxX           =   300;
    _maxY           =   800;
    _minAngle       =   0;
    _maxAngle       =   360;
    
    _depassementX   =   false;
    _depassementY   =   false;
}
    

Hi everyone! I'm new to mbed and i'm trying to create my first class on this platform. But the problem is, i don't understand how to do it. I tried something which don't work... That's it : <<code title=Coordonnees.hpp>> #ifndef __COORDONNEES_ #define __COORDONNEES_ #include "stdint.h" class Coordonnees { private : int _x; int _y; int16_t _angle; const int16_t _maxX; const int16_t _maxY; const int16_t _minAngle; const int16_t _maxAngle; bool _depassementX; bool _depassementY; public : Coordonnees(int x, int y); }; #endif <</code>> <<code title=Coordonnees.cpp>> #include "Coordonnees.hpp" Coordonnees::Coordonnees(int x, int y){ _x = x; _y = y; _angle = 0; _maxX = 300; _maxY = 800; _minAngle = 0; _maxAngle = 360; _depassementX = false; _depassementY = false; } <</code>> I think that i made everything like the Flasher example available on mbed... [[https://os.mbed.com/cookbook/Writing-a-Library]] But when i try to build it, i have this error : <<quote>>Error: "Coordonnees::Coordonnees(int, int)" provides no initializer for in "Coordonnees.cpp", Line: 3, Col: 40<</quote>> What am i doing wrong?

Coordonnees::Coordonnees(int x, int y) : _maxX(300), _maxY(800), _minAngle(0), _maxAngle(360) {    
    _x              =   x;
    _y              =   y;
    
    _angle          =   0;
    
    _depassementX   =   false;
    _depassementY   =   false;
}

For those ##const## variable, you should initialize them by <<code>> Coordonnees::Coordonnees(int x, int y) : _maxX(300), _maxY(800), _minAngle(0), _maxAngle(360) { _x = x; _y = y; _angle = 0; _depassementX = false; _depassementY = false; } <</code>>

Hi , it works! Thank you very much!

hello bro