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Can anyone tell me why this piece of code builds with error 143, and how to get it to build without errors?
typedef unsigned char U8; typedef unsigned long int U32; #define B0(x) ((U8) ((U32)x&0xFF)) #define B1(x) ((U8)(((U32)x&0xFF00)>>8)) #define B2(x) ((U8)(((U32)x&0xFF0000)>>16)) #define B3(x) ((U8)(((U32)x&0xFF000000)>>24)) void foo(void); BYTE abc[]={ B0(foo), B1(foo), B2(foo), B3(foo) }; void foo(void){ }
"I don't have the C166 compiler, so I don't know what error 143 is." Neither do I! Dave, you'd really help yourself in getting an answer to your question if you posted the full text of the message. Have you looked up this error in the Manual? Did that add anything? Did it help?
MY BAD...! I thought only C16x tool user's would've attempted to answer my question, although I do appreciate your help. FWIW, KEIL's user's manuals are online now. Not sure how long they've been online, but... the compiler reports:
MAIN.C(35): error 143: 'scalar': initializer is not a constant
"initializer is not a constant" It often pays to simply read the text of an error message out loud - it is telling you exactly what Drew has been saying! The value of foo is not known at compile time; thus it is not a constant!