Token-pasting support for number##identifier

[dwilliamson]

This code:

#define K_DOUBLE(x) x##l
K_DOUBLE(0.5)

currently emits:

0.5�l

In an IDE the intermediate token is usually invisible leading to a very confusing compile error. However, it's just the TOK_SEP character being inserted where a concat operation hasn't been detected.

I've "fixed" the issue here: Celtoys@b6f4e10

That may not be the best way of going about this so would appreciate your feedback.

Thanks!

[bagder]

Thanks! Please submit it as a pull request here so that we can review it easier. There's also that typo that's already been commented on which seems to imply that you didn't build and test exactly that version of the patch?

[dwilliamson]

It was a copy/paste typo from another branch. I've just done a block copy to eliminate such issues.

Sorry, I can't submit a PR as I use fcpp on multiple projects in its single file form.