[Snowball-discuss] floating labels in generated C

[Martin Porter]

(Vineet, it would be best if your messages were posted into
snowball-discuss, as here.)

Vineet Gupta notes:

>....  some minor problems:
>1. The snowball compiler does not put a semicolon after a label if there is
>no statement after it, for example
>		lab5:
>		}
>My compiler, Visual C++ on Windows 2000, gives an error, which I fix by
>adding a semicolon:
>		lab5: 
>		    ;
>            }

I have put a delicate adjustment into the ANSI C generator to add in a line
with the semicolon in just these circumstances. A few, but not all, of the
stem.c files are thereby affected. (Should be on sourceforge in a few hours.)

In ANSI C, labels attach to commands, and it is incorrect to leave them
floating at the ends of blocks. I was aware of this, but since gcc does not
complain, I thought I could get away with it in all circumstances. Clearly not.

Presumably you could fix the problem by adding ';' after every label, or
indeed before every block closure, but how ugly!

Viveet raises a number of other points which will be addressed in due course,

Martin 


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