#include repetition

Question

Context: I've got one class which has two include clauses:

#ifndef VAR_RECORD_SONG_H
#define VAR_RECORD_SONG_H

#include "VarRecord.h"
#include "Compressor.h"

class VarRecordSong : public VarRecord
{
    public:
        VarRecordSong();
        ~VarRecordSong();
};

#endif /* VAR_RECORD_SONG_H */

Problem: both VarRecord.h and Compressor.h include the same file GlobalConstants.h, so obviously the compiler complains.

Put [Include guard](http://en.wikipedia.org/wiki/Include_guard) to `GlobalConstants.h` as you did for `VarRecordSong.h`? — Alexander Shukaev, Apr 14 '13 at 02:25

score 2 · Accepted Answer · answered Apr 14 '13 at 02:37

2

The file GlobalConstants.h should be like this:

#ifndef GLOBAL_CONSTANTS_H
#define GLOBAL_CONSTANTS_H

file contents...

#endif

So this file will only appear once in the pre-processed codes.

answered Apr 14 '13 at 02:37

chncwang

148
1
6

#include repetition

1 Answers1