Custom Classes?

[JPruim]

How would I go about creating a custom class? For example, I want a class that has a digitalInput encapsulated within it. In simple terms, How would I convert my existing LimitSwitch class (https://github.com/itguy51/FRC4014-2012/blob/main/src/com/hightechhighfives/yearone/LimitSwitch.java) into C++? I have never actually used C++ in Object-Oriented programming other than simple things like in Visual Studio for demonstrations. I guessed how, and got this:

class limitSwitch
{
DigitalInput di;
limitSwitch::limitSwitch(UINT32 port){
di(port);
}
bool limitSwitch::getState(){
return di.Get() == 1;
}
};

which is FULL of errors, there are more lines in the error log than there are in the cpp file. I get "Error: Expected ')' before "port"" and am confused because that makes no sense. I want to pass an argument to the constructor so that it assigns the DigitalInput to the initialized port.
getState is supposed to return true/false based on the state of the switch.

[virtuald]

Two ways of doing it. One is totally inline as you're doing it (which isn't really the C++ way of doing it).


#include <wpilib.h>

class LimitSwitch
{
public:

LimitSwitch(UINT32 port) :
di(port)
{}

bool getState()
{
return di.Get() != 0;
}

private:
DigitalInput di;
};


Or split into cpp/h files. Here's LimitSwitch.h:


#ifndef __LIMITSWITCH_H
#define __LIMITSWITCH_H

class LimitSwitch
{
public:

LimitSwitch(UINT32 port);

bool getState();

private:
DigitalInput di;
};
#endif


And LimitSwitch.cpp:


#include <wpilib.h>
#include "LimitSwitch.h"

LimitSwitch::LimitSwitch(UINT32 port) :
di(port)
{}

bool LimitSwitch::getState()
{
return di.Get() != 0;
}