Taking C++ w/ MS Visual Studio, don't want to be damaged goods...

[earthpigg]

Question about porting code from Visual Studio to Geany.

We're doing functions now.

I can make it all be one big file, but is there a way to have it as three separate files that reference each other?

He wants to have it in three separate files: header file that describes functions, file that defines them, and main() file for reasons X, Y, and Z that I've no choice but to accept and that thus aren't particularly relevant.

Snip from today's introductory example (ignore the 'math' in the filenames, mentally replace it with an appropriate name - I also haven't done data validation yet, so ignore that too):

math_H.h

#include <iostream>
using namespace std;

#ifndef randomManip
#define randomManip

double employeeGrossPay (int hours, double wage);
//Preconditions: both are non-negative numbers, hours is an intiger and wage is a decimal value.
//Postconditions: Returns the gross pay of one employee, giving time and a half for hours past 40.

double totalGrossPay (double currentTotal, double latestEmployee);
//Preconditions: both are non-negative numbers, currentTotal is the running tally and latestEmployee
// is to be added to that.
//Postconditions: Running tally of total gross pay is updated by summing the two numbers.

#endif

math_Imp.cpp

#include <iostream>
#include "math_H.h"
using namespace std;

#ifndef randomManipImp
#define randomManipImp

double employeeGrossPay (int hours, double wage)
{
	int hoursOver40 = 0;
	double grossPay = 0.0;
	if (hours > 40) // separate normal time from overtime hours
	{
		hoursOver40 += hours - 40;
		hours = 40;
	}
	grossPay = (hours * wage) + (hoursOver40 * 1.5 * wage);
	return grossPay;
}

double totalGrossPay (double currentTotal, double latestEmployee)
{
	return currentTotal + latestEmployee;
}

math_test.cpp

#include <iostream>
#include <ctime>
#include <iomanip>
#include "math_H.h"
using namespace std;

int main()
{
	int hours = 0;
	double wage = 0.0;
	char more = 'y';
	int counter = 0;
	double allEmployeesTotal = 0;

	do // main loop for entering employee info
	{
		counter++;
		cout << "Enter hours for employee #" << counter << ":\t";
		cin >> hours;
		cout << "Enter wage for employee:\t$";
		cin >> wage;
		cout << "Gross Pay for that employee:\t$" << setprecision(2) << fixed 
			<< employeeGrossPay(hours, wage) << endl;

		//update running total for total pay for all employees.
		allEmployeesTotal = totalGrossPay(allEmployeesTotal, employeeGrossPay(hours, wage)); 
		cout << "More employees? (y/n)\t";
		cin >> more;
		more = tolower(more);
	} while (more != 'n');

	cout << "Total gross pay for all " << counter << " employees:\t$" << setprecision(2) << fixed 
		<< allEmployeesTotal << "." << endl;
	return 0;
}

[muteXe]

What are you asking? Are you saying these 3 files moved to geany doesn't compile anymore?

[earthpigg]

If I put the three files in the same directory and then open them at once in geany in three different tabs, it doesn't seem to automatically recognize that they're related. Replacing #include "math_H.h" with #include "/path/to/math_H.h" doesn't seem to do it either.

If I amalgamate them into one .cpp file, it works fine. But, trying to go along with the way we're being taught in class I'd like them in three.

EDIT: In Visual Studio, we are taught to start off the lab time by creating a new "project", and through some wizardry any files just created or added are thus automatically associated and through some other magic I do not understand built/compiled together. I see a "project" menu in geany, but the paradigm stops there and I don't seem to see a "add file to project" dialog anywhere.

Trying to stomp the vendor lock-in bugs as they pop up.

[muteXe]

I've not used geany i'm afraid (visual studio all the way for me), but yea there should be a project file somewhere.
maybe create a blank project in geany with a few cpp and h files, then try and locate the project file created and use this as a basis for creating your own project file.

In fact, even better. Create a new project with files called the same as yours and just copy your code into each of the files.

[r-senior]

I think I'd go the route of getting the program to compile from the command line. Geany is a lightweight tool rather than a complete IDE and you'll probably need a makefile or at least modify Geany's build command for the project. Geany's project file is just a collection of open files and overall project preferences.

Something like

g++ -o mathimp math_Imp.cpp math_test.cpp

[earthpigg]

OK thanks for the advice. I got it working the way we were taught in codeblocks (see screenshot).

Would still be interested if someone is aware of a way to make geany do that.

[dwhitney67]

OK thanks for the advice. I got it working the way we were taught in codeblocks (see screenshot).

Would still be interested if someone is aware of a way to make geany do that.

My $0.02... focus more on the quality of your code and not so much on the IDE.


Here's some issues I saw in your code:

1. Unnecessary header files included in the .h file

2. Unwarranted "using namespace" directive in .h file; NEVER do this.

3. Unnecessary header files and/or "using namespace" directive included in .cpp file(s).

4. System header files should not be included before project header files.

5. Redundant code.

[matt_symes]

Hi

employeeGrossPay (int hours,

Preconditions: both are non-negative numbers, hours is an integer

If the above is so, why is hours a signed integer ?

Kind regards

[earthpigg]

A lot of that is

for reasons X, Y, and Z that I've no choice but to accept and that thus aren't particularly relevant.

And some because he isn't being nit-picky, and why should I be? Once we're done with the lab assignment, we're done and can leave. The above is good enough for 30/30 on the lab assignment. On my own time out of school, I've at this point got a nifty little pong game up and running using SDL and OpenGL.

[earthpigg]

The only reason I "worry" about the IDE is so I don't have to do the homework assignments in class and can do them at home. It's cool though, codeblocks solved it for me.