Help needed to get my 7i76E + 7i85S + 7i73 on my mill going.

And move declarations of to before the for loop, together with the other declarations.

Now it compiled, did move int i;
FUNCTION(_) {
int i;

You guys have still got a type mismatch on this line assigning an int to an s32 which is a long. Refer my earlier post.
I've never had a problem with this style in components. IF its not compiling or its generating compiler warnings that a syntax error in your code

But it compiled as per last edits.

Int and long is not a problem, there is automatic casting as needed.

And in this environment an int is 4 bytes = length of s32.

int is 16 bits
long is 32 bits (which is where the 32 comes from in S32)

I'm not really sure how halcompile modifies things with S32 data types. In most computer architectures, the low order 16 bits of a 32 bit variable are usually compatible with a 16 bit variable so its probably OK.

Over the years I've learnt to obsess over getting the typdefs 100% right and use implicit type declarations to convert between types without leaving it to chance as you can get bitten.

The other gotcha is assigning values to longs (hence the L modifier eg 0L) to make sure the compiler gets the full 32 bit value. I have been caught with code where the L is omitted hence my caution. Always treat compiler warnings as potential errors.