I have TestMethods.h
#pragma once
// strings and c-strings
#include <iostream>
#include <cstring>
#include <string>
class TestMethods
{
private:
static int nextNodeID;
// I tried the following line instead ...it says the in-class initializer must be constant ... but this is not a constant...it needs to increment.
//static int nextNodeID = 0;
int nodeID;
std::string fnPFRfile; // Name of location data file for this node.
public:
TestMethods();
~TestMethods();
int currentNodeID();
};
// Initialize the nextNodeID
int TestMethods::nextNodeID = 0;
// I tried this down here ... it says the variable is multiply defined.
I have TestMethods.cpp
#include "stdafx.h"
#include "TestMethods.h"
TestMethods::TestMethods()
{
nodeID = nextNodeID;
++nextNodeID;
}
TestMethods::~TestMethods()
{
}
int TestMethods::currentNodeID()
{
return nextNodeID;
}
I've looked at this example here: Unique id of class instance
It looks almost identical to mine. I tried both the top solutions. Neither works for me. Obviously I'm missing something. Can anyone point out what it is?
static int nextNodeID = 0;
in the class? You can still increment it in your constructor.