class redifinition error
Author
I made a class and saved it as a .h file, but wheni make the main file, it says that it is a ''class'' type redifinition. I have know idea why that is happening can someone help?
try putting #pragma once at the top of the .h file. You may be including the .h file more than once, which would cause class redefinition. An inclusion guard like #pragma once (you can also do it with preprocessor conditionals, but most new compilers support pragmas) will make sure each header is only included once in each code segment.
or, if you want standard compatibility between compilers (i think that pragma commands are compiler specific...) wrap your .h file in some kind of #ifndef #define #endif tags like the following
all that means is that if the constant _CLASS_YOURCLASSNAME is not already defined, define it and include the enclosed code. your problem is that you are including in your file a .h file that is also included by another of the .h files that you are #including. the system above avoids re-includes of the same code during compile.
-me
#ifndef _CLASS_YOURCLASSNAME#define _CLASS_YOURCLASSNAME//contents of .h file hereclass YourClassName {};#endif all that means is that if the constant _CLASS_YOURCLASSNAME is not already defined, define it and include the enclosed code. your problem is that you are including in your file a .h file that is also included by another of the .h files that you are #including. the system above avoids re-includes of the same code during compile.
-me
yeah thats what i was getting at...but VC++ and most other popular compilers support it...maybe not like gcc or mingw...
Author
Yeah thanks for the help, i did that and it worked. I have another error it says that one of my functions "already has a body" but it dosnt. I don't know how to fix that either. Its in another cpp file BTW.
[edited by - Nothingness on December 2, 2002 8:18:47 PM]
[edited by - Nothingness on December 2, 2002 8:18:47 PM]
quote:Original post by bjmumblingmiles
yeah thats what i was getting at...
damn. my reading comprehension today is zero. i don't think i even read the sentance where you commented on compiler specificity. heh.
-me
[edited by - Palidine on December 2, 2002 8:19:08 PM]
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