printf not working on C32 compiler

Question

Why isn't the printf working on PIC32 like with PIC18?

For example this code works fine on PIC18, but not on PIC32,

printf("%lu",value);

With C32 compiler there is not output message, what did I miss?

Answer 1

The sizeof(unsigned) on a PIC18 is 2
The sizeof(unsigned) on a PIC32 is 4
I suspect value is not long unsigned and so you have UB in

printf("%lu",value);

If so, insure the format specifier matches the variable type.