Author: Dann Corbit
Date: 13:44:24 02/24/03
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On February 24, 2003 at 16:27:09, Uri Blass wrote: >I try to change my C files to C++ after advice that I got when people told me >that inline functions are better macro(note that I do not know why they are >better but I found that C++ give me better warning than C for some reason. > >The problem is that for some reason I also get errors that I do not understand. > >I get the following errors for some varaibles when I change my C files to CPP >files > >error LNK2001: unresolved external symbol "int * info" (?info@@3QAHA) > >Note that it is only for varaibles that I used for them the following trick > >int PADDED_info[80]; >int * const info = PADDED_info+8; > >I have in data.h >extern int * const info; >I do not understand what is the problem. Probably, you have a mix of C and C++ files. If so, the C++ routines will not see the C functions because of something called "name mangling" that changes the format of the name that the linker will see. There are several ways to fix it. Here are two possibilities: 1. Change all the files to C++ files at the same time. 2. Use extern "C" declarations for the C functions you must access
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