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Hi, I've split my project into files. I've defined some global variables in one of the header files as follows: unsigned char ToneDisp[16] = {'D','1','2','3','4','5','6','7','8','9','0',0x2A,0x23,'A','B','C'}; struct channel xdata Ch[16]; unsigned char CHANNELTYPE[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; These variables are used in other files too. Compiling the files individually everything goes fine while building the project results in: *** ERROR L104: MULTIPLE PUBLIC DEFINITIONS How can I avoid this? Shouldn't I 've defined the global variable that way?? Thanks for your attention in advance A.E.
Also, your interface should not change so often that it's really a problem. Even if you need to make a global variable part of the interface to a module, once you choose to do so, that decision is fixed. You shouldn't be updating the definition all the time, any more than you would gratuitiously rename a function constantly. When making several 'somewhat similar' projects you do everything stated above that you "do not do" after each 'steal' from the previous project. I would, somewhat, agree with Drew if everything you made was started from scratch, but how often do you do that? Erik