Simple #ifndef problem

**knutso** · 06-02-2003

I always include an #ifndef.. #define in my header files to avoid mulltiple includes. This, however, doesn't seem to work under C. I get the following errors:

stdhdrs.h(237): Warning! W129: #endif matches #if in different source file 'datatypes.h'
eanfunc.h(237): Warning! W129: #endif matches #if in different source file 'datatypes.h'

Here's thye code:

Code:

#ifndef DATATYPES_H_DEFINED
#define DATATYPES_H_DEFINED
//Code
#endif

Suggestions?

**TeQno** · 06-02-2003

shouldnt it be

Code:

#ifndef DATATYPES_H
#define DATATYPES_H

//CODE

#endif

**CornedBee** · 06-02-2003

The actual macro name is irrelevant, as long as it's the same for both the ifndef and the define.

Can you post stdhdrs.h and eanfunc.h too? It's something in the way the use datatypes.h that causes the problem.

**knutso** · 06-02-2003

Thanks for the replies. I'm using Watcom C for my C projects. When I'm using the same methods on MsVC++ 6.0, everything works as intended.

Stdhdrs.h, this file includes all the common headers for the project:

Code:

#ifndef STDHDRS_H_INCLUDED
#define STDHDRS_H_INCLUDED

#include <fcntl.h>
#include <string.h>
#include <stdio.h>
#include <io.h>
#include <conio.h>
#include <memory.h>
#include <bios.h>
#include <graph.h>
#include <stdlib.h>
#include <math.h>
#include <share.h>

#include "datatypes.h"
#include "mylib.h"

#endif

Datatypes.h, this file includes all the struct declarations, etc.. for the prog:

Code:

#ifndef DATATYPES_H_DEFINED
#define DATATYPES_H_DEFINED

#define word unsigned short

#define DEBUG 0

//....Lots of other types

typedef struct keyboard_map{
	char *name;
	unsigned char value;
} LOOKUP;

#endif

//Eanfunc.h
#ifndef EANFUNC_H_INCLUDED
#define EANFUNC_H_INCLUDED

#include "datatypes.h"

int ai[] = {
  {18},{14},{14},{14},{16},{0},{0},{0},{0},{0},{0},{6},{6},{6},{6},{6},{6},{6},{6},{6},
  {2},{0},{0},{0},{0},{0},{0},{0},{0},{0},{0},{6},{6},{6},{6},{6},{6},{0},{0},{0},
  {0},{13}
};

char *fett[] = {
  {"1-"},{"1 "},{"1+"},{"2-"},{"2 "},{"2+"},{"3-"},{"3 "},{"3+"},{"4-"},{"4 "},{"4+"},{"5-"},{"5 "},{"5+"},{0}
};

char Ean13Read(char *kode, BC_13 *bar, char *type);
void Ean13Write(char *achKode, double *dMenLev);
char Ean13Check(char *achKode);
char Ean128Read(char *kode, BC_128 *bar);

#endif

The only time i've seen this error elsewhere, is when i've given two macros the same name.

Edited: I forgot to add Eanfunc.h

**DavT** · 06-02-2003

Are there any more #ifs in Datatypes.h. For example do you use "#if DEBUG == 0" or anything? It looks to me that you open a #if without closing it with #endif somewhere in the section marked "//....Lots of other types" since what you have given us looks ok to me.

**knutso** · 06-02-2003

There are no mismatching #if..#endif statements.
I've scanned through the whole project for this, and found none..

I wonder if this could be a compiler issue?

**CornedBee** · 06-02-2003

The error message sounds as if there was one #if* too many in datatypes.h.

**knutso** · 06-02-2003

I can't see any mismatch, attaching datatypes.h

**CornedBee** · 06-02-2003

Very weird indeed...

**knutso** · 06-02-2003

I tried the #if !defined(), with the same result as #ifndef..

Thread: Simple #ifndef problem

Thread Tools

Search Thread

Display

Simple #ifndef problem

Similar Threads

A simple file I/O problem

Problem in simple code.

Problem in very simple code

Simple File I/O problem

Simple Initialization Problem