error of compilation (i use code::blocks)

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Hello everybody
My question is simple, when I compile my program ( a group of file source(, and of files headers) I have the following error message:

Error: conflicting typify for ' coef '
Note: previsous declaration of ' coef ' was here

The declaration of coef is the following one:
typedef struct {float c[6];} coef;

This declaration is in a file .c
I also have the same error message in what conserne prototype of function (which is in a fichier.h)

If somebody has confronted to the same error , either that he have an idea of the probleme :(

Posted 14-Feb-11 22:31pm

feriel

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LaxmikantYadav 15-Feb-11 5:39am

Can you show us the code so it is easy to point out the error

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CPallini · Answer 1 · 2011-02-14T22:38:00

Solution 1

You have multiple declarations of the symbol coef and you must fix it: if many source files need it then declare it in a header file. On the other hand, if you need it just in one source file then you may declare it there.

By the way, are you using guards against header multiple inclusions?

For instance:

C

// fichier.h
#ifndef __FICHIER_H__
#define __FICHIER_H__

// declarations here...
// ...

#endif // __FICHIER_H__

Posted 14-Feb-11 22:38pm

CPallini

v2

Comments

Sandeep Mewara 15-Feb-11 6:36am

Comment from OP:No i did not used a guards against header multiple inclusion( thanks for information Smile , but for declaration of variable i read that it must be write in file.c

CPallini 15-Feb-11 6:51am

Variable DEFINITIONS must be written in source (*.c) files (for instance you might declare a variable as 'extern' inside a header file). In any case, you posted about a 'typedef', not a variable.

Sergey Alexandrovich Kryukov 15-Feb-11 22:18pm

Correct, my 5.
--SA