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What's wrong with C51 conditional compiled?

Nantian Gumo 

#define RR0  1
#define RR1  0

void main()
{
...
#if RR0
precedure0();
#elif RR1
precedure1();
#endif
...
}
when compiled ,main() 'LCALL' precedure0(),just right.but when definition changed ,as following:
#define RR0 0
#define RR1 1

the program can never be compiled and link.can you tell me what the matter is ?

Best regards,
Nantiangumo

Parents
  • 0 in reply to Nantian Gumo

    "There is mistake with 'procedure1()',so it can't be compiled and linked."

    It's always best to pay attention to the specific error messages first.

    Remember, if you double-click a compiler error message, it will take you straight to the relevant 'C' source line;

    Also, select any error message, then press F1, and you will get help on the specific message.

Reply
  • 0 in reply to Nantian Gumo

    "There is mistake with 'procedure1()',so it can't be compiled and linked."

    It's always best to pay attention to the specific error messages first.

    Remember, if you double-click a compiler error message, it will take you straight to the relevant 'C' source line;

    Also, select any error message, then press F1, and you will get help on the specific message.

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