const array of structs

[rdwebb]

Hello all, I've been happily using my old version of the PCWH compiler (version 3.114) for ages. I've now upgraded to version 3.217 of the compiler. Unfortunately some of my code which happily compiled before no longer compiles, and I can't understand why! Here is the code that is causing the problem:


enum tasks { doNothing, doSomething, displayStart, displayEnd };
enum states { first, second, third, fourth };

// Create a struct
struct stateTable
{
tasks task_to_run;
states nextState;
};

// Create an array of structs.
const struct stateTable theTable[2][2] = { { {doNothing, first}, {doSomething, second} },
{ {displayStart, third}, {displayEnd, fourth} } };


This code when compiled gives the error 'Expression must evaluate to a constant'. The code will compile on the old version of the compiler, and will compile on other C compilers .. but not V3.217 that I now have!

Can anyone shed some light on this for me?
Thanks,
Rich.

[Ken Macfarlane]

I had exactly the same problem, but with an array of 30 structs, each containing 2 strings & some ints: 1080 bytes in all. Some other members suggested in other therads that the compiler will not handle structs bigger than 1024 due to the length of some pointer (smaller than 16 bits long), but I never did get a definitive answer on that, even from CCS. So I chopped my lovely structs up into 4 arrays, and the nasty compiler dragon went back to sleep.