| From: | |
| Date: | 26 Feb 2001 at 14:38:44 |
| Subject: | Re: Link together C and C++ |
Hi Vassili,
--- Vassili Smirnov <backa@compic.ee> a �crit : > Hi!
>
> I got troubles when mixing C++ and C source,
> for example:
>
>
> /*--------------------------*/
> /*--------- test.h ---------*/
> /*--------------------------*/
> #ifndef TEST_H
> #define TEST_H
>
> void myFunc(void);
>
> #endif
>
> /*--------------------------*/
> /*-------- test.cpp --------*/
> /*--------------------------*/
> #include <stdio.h>
> #include "test.h"
>
> void myFunc(void)
> {
> printf("Just a test.\n");
> }
>
> /*--------------------------*/
> /*-------- testmain.c ------*/
> /*--------------------------*/
> #include "test.h"
>
> void main (void)
> {
> myFunc();
> }
>
>
> When I link objects, SAS doesn't find define symbol
> for _myFunc.
It's normal because a C++ compiler generate functions
with some informations like parameters, return type,
... into the name of the function. It's for
overloading purpose.
> What is going? When I rename "test.cpp" to "test.c"
> , compile
> and link, all is OK!
>
> I need classes in myFunc, and I can't use C++ in
> main()!
No, the solution is to have a C++ testmain (so you
have only to remove testmain.c into testmain.cxx, or
.cpp).
As a conclusion :
- C++ may call C function
- it's difficult to call C++ from C.
Bye
Laurent
=====
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