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Hello!
I want to include the same headerfile in more than one sourcefile and of course have to take care that each Headerfile is included just once.
I really have no clue, why this works for the Headers provided by Keil but not with my own ones:
#ifndef _MYHEADER_H_ #define _MYHEADER_H_
//Headerfile content . ..
#endif
Obviously the preprocessor includes the Headerfile more than once and so i get errors.
When i add a statement within my Header like:
#warning "included more than once"
the warning message appears twice. (so the header is really included twice).
Can anyone tell me the problem please?!
Kind regards
Example 2 should have read:
Example 2: global.h header1.h -> includes global.h header2.h -> includes global.h as well file1.c -> include header1.h -> OK include header2.h -> ERROR, global.h already included file2.c -> include header1.h -> OK include header2.h -> ERROR, global.h already included
Sorry about that...
-- J