Weird Borland Warning

[Thantos]

Ok trying to help a friend out that is in my class. When hey compile they get the following error

Warn : HW4_HEADER.H(15,16):Cannot create pre-compiled header: initialized data in header

The header is as follows (line bolded for the warning)

#ifndef MYHEADER_H_
#define MYHEADER_H_

#include <iostream.h>
#include <stdio.h>
#include <stdlib.h>

#define password 123
#define bouns_min 50
#define time_add_bouns 451

#ifdef exturnvariable
   extern int bonus;
#else
   int bonus;
#endif

#define full_time 40
#define per 1.5


enum option {Hourly=1, Salary, Commission, Quit};

void Password_check(int);       //funtion prototype
int Init();
option Display_menu();
void Process(option choose);
void Hourly_salary(int, float);
void Hourly_salary(int &,double &);
void Commission_day(int);
double Commission_earn(int);
double Grand_total(double);
void Pattern();
#endif

And yes I realize its pretty fugly but thats how our teacher wants it

It does compile but I hate stupid warnings

[VirtualAce]

You can't initialize data in header files. If you do, Borland will not be able to create a pre-compiled header for you. It's really no big deal but pre-compiled headers will make compilation faster because unless you change the header...your compiler will not re-parse your version..it will use the pre-compiled one.

[Thantos]

But the data is not being initalized....

[Salem]

If you have K&R-2 (and why wouldn't you ), you'll read that
int bonus;
is a tentative definition.

This is a kind of halfway house between a true declaration like
extern int bonus;
and a true definition like
int bonus = 2;

If you never get around to an explicit definition, the compiler will assume you meant
int bonus = 0;

If that's the way you're "supposed" to do it, I guess you have to turn off precompiled headers.

[Thantos]

Thanks Salem. No I don't have any books from K&R because I'm a cheap bastard.

Personally I hate the fact that we have to use a global variable and that for the extra credit we have to move it into the header.

Combine that with my distain for Borland and there is a lot of hate flying around

[WaltP]

Originally posted by Thantos
Thanks Salem. No I don't have any books from K&R because I'm a cheap bastard.

Personally I hate the fact that we have to use a global variable and that for the extra credit we have to move it into the header.

Combine that with my distain for Borland and there is a lot of hate flying around

Hmm, requiring a bad practice for extra credit. Sounds like in medical school giving extra credit to using leeches. Your instructor should be slapped.

And what the 7734's wrong with Borland? Do you prefer that M$ crap better?

And get a book. It's an investment. Be a cheap bastard where it counts. (again)

[Salem]

Does you tutor even know what a tentative definition is?

Or for that matter why you're mixing C and C++ headers (and its the old C++)

[Thantos]

I agree on slapping my instructor
The reason I hate Borland is because it lets you get away with a lot, throws in its own functions, and seems to give a lot of lame warnings.
I don't have any tutor but I don't think my instructor knows what a tentative definition is. The reason for the mixing of C & C++ headers is because its a "C" class that is being compiled as C++ and people can use the iostreams if they want.
I have to go to my happy place during class to keep from screaming. For God's sake he thinks void main() is perfectly fine.