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Felix Althaus
Joined: 09 Sep 2003
Posts: 67
Location: Winterthur, Switzerland
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| temporary undoing a #define (?) |
 Posted: Wed Jan 14, 2004 10:30 am |
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Hello
I have this code:
#define BUTTON PIN_A1
[...]
#if(BUTTON / 8 != 5)
#error BUTTON has to be on PortA
#endif
I want to check, if BUTTON was assigned to a pin on Port A. If not a message should appear. The problem is, that in the error message BUTTON is replaced by the internal compiler value (ok, I know, the pre-processor does here what he sould do...).
Is there a way I can "undefine" BUTTON just for this time so it will print "BUTTON" instead of a number?
Many thanks
Felix |
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Ttelmah
Guest
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| Re: temporary undoing a #define (?) |
| Posted: Wed Jan 14, 2004 11:24 am |
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| Felix Althaus wrote: | Hello
I have this code:
#define BUTTON PIN_A1
[...]
#if(BUTTON / 8 != 5)
#error BUTTON has to be on PortA
#endif
I want to check, if BUTTON was assigned to a pin on Port A. If not a message should appear. The problem is, that in the error message BUTTON is replaced by the internal compiler value (ok, I know, the pre-processor does here what he sould do...).
Is there a way I can "undefine" BUTTON just for this time so it will print "BUTTON" instead of a number?
Many thanks
Felix |
#if(BUTTON / 8 != 5)
#undef BUTTON
#error BUTTON has to be on PortA
#endif |
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