CountLT Code

CountLT.cpp

//CountLT.cpp
//Aryelle Young
//Sep 23 2014
//Defines the CountLT class

#include "CountLT.h"

//Default Constructor
	//takes a value from client code to use as initial bound
CountLT::CountLT(double bound) : the_bound(bound), count(0)
{

}

//Destructor
CountLT::~CountLT()
{

}

//Mutators

//Post: entry has been added to the collection tracked by CountLT.
void CountLT::put(double entry)
{
	if (entry < the_bound)
	{
		count++;
	}
}

//Accessors

//Post: the number of items less than the_bound has been returned.
int CountLT::get()
{
	return count;
}

CountLT.h

//CountLT.h
//Aryelle Young
//Sep22 2014
//An accumulator class whose objects
//count the number of entries in a
//sequence that are less than a given bound.


#ifndef _COUNTLT_H_
#define _COUNTLT_H_

class CountLT
{
	public:
		//Default constructor
		CountLT(double bound);

		//Destructor
		~CountLT();

		//Mutators
		void put(double entry);

		//Accessors
		int get();


	private:
		//Data members
		int count;
		double the_bound;
};
#endif

CountLT_Driver.cpp

//CountLT_Driver.cpp
//Aryelle Young
// Sep 24 2014
//Intended as a driver to test the functionality of class CountLT.

#include "CountLT.h"
#include <iostream>
#include <iomanip>

using namespace std;


int main()
{
	//Initial test of CountLT
	CountLT testLessThan(13.13);
	cout << "Count for new object testLessThan is " << testLessThan.get() << endl;

	testLessThan.put(0.98);
	testLessThan.put(-87.322);
	testLessThan.put(14.1);
	testLessThan.put(13.780);
	testLessThan.put(51.00);

	cout << endl;
	cout << "After adding the quantities 0.98, -87.322, 14.1, 13.780, and 51.00 ";
	cout << "to the collection tracked by the testLessThan object, the count is ";
	cout << testLessThan.get() << endl;

	testLessThan.put(13.109);
	testLessThan.put(0);
	testLessThan.put(7564.932);

	cout << endl;
	cout << "After adding the quantities 13.109, 0, and 7564.932 to the ";
	cout << "collection tracked by testLessThan, the count is " << testLessThan.get();
	cout << endl;

	cout << endl;

	double sequence[] = { -54.88, 99.15, 49.821, 100.936, 1.234, 0.7562, -0.624, 8256.777, 30.826, 71 };
	double upper_bound = 55.00;
	double lower_bound = 5.00;

	cout << "Given the sequence: " << endl;
	for (int i = 0; i < 10; i++)
	{
		cout << setw(14) << sequence[i] << endl;
	}

	CountLT upper_tracker(upper_bound);
	CountLT lower_tracker(lower_bound);

	for (int i = 0; i < 10; i++)
	{
		upper_tracker.put(sequence[i]);
		lower_tracker.put(sequence[i]);
	}

	int countBetween = upper_tracker.get() - lower_tracker.get();

	cout << endl;
	cout << "The number of entries between " << upper_bound;
	cout << " and " << lower_bound << " is " << countBetween;
	cout << "." << endl;

	return 0;
}

Errors

Undefined symbols for architecture x86_64:
  "CountLT::get()", referenced from:
      _main in CountLT_Driver-9c7b61.o
  "CountLT::put(double)", referenced from:
      _main in CountLT_Driver-9c7b61.o
  "CountLT::CountLT(double)", referenced from:
      _main in CountLT_Driver-9c7b61.o
  "CountLT::~CountLT()", referenced from:
      _main in CountLT_Driver-9c7b61.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
[Finished in 0.3s with exit code 1]
[shell_cmd: g++ "/Users/ayoung92/Desktop/COSC_2030/CountLT_Driver.cpp" -o "/Users/ayoung92/Desktop/COSC_2030/CountLT_Driver"]
[dir: /Users/ayoung92/Desktop/COSC_2030]
[path: /usr/bin:/bin:/usr/sbin:/sbin]

Works just fine for me, I created a fork with a Makefile in it. Give that a try with:

git clone https://gist.github.com/bemasher/ba32346393a1d112f63a CountLT
cd CountLT
make
./main