Re: c / include files

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#8463

From: Luc Kumps
Date: Thu, 27 Jun 2002 12:35

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"Klashma" <klash@noemail.invalid> wrote in message
news:Xns923A912658EDFkeanunoemailcom@195.130.132.65...
> Heb 2 globals vars die ik in 2 .c files nodig heb
> deze init ik in een .h file, als ik in beide .c files die .h include en
die
> dan samen link krijg ik altijd error van
> server.o: Definition of symbol `_plHead' (multiply defined)
> player.o: Definition of symbol `_plEnd' (multiply defined)
>
> Wat is de juiste manier om dit te doen?

De juiste ken ik niet, maar hier is er alvast ��n ;-)

In je .h file gebruik je:

#ifdef MAIN_PROG
#define EXTERN_VAR
#else
#define EXTERN_VAR extern
#endif

EXTERN_VAR long * plHead;
EXTERN_VAR long * plEnd;

In 1 van je C files gebruik je:
#define MAIN_PROG
#include xxx.h

In de andere doe je:
#include xxx.h


Luc

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From: "Luc Kumps" <NOkumpsSPAM@pandora.be>
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Subject: Re: c / include files
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