On Mon, 25 Feb 2019, Timur Tabi wrote:
> I have lots of code that looks like this:
>
> #define MY_ITERATOR(x, y) for (x=0; x<y; x++)
>
> MY_ITERATOR(v, 20)
> {
> printf("%i\n", v);
> }
>
> Spatch chokes on this because it thinks MY_ITERATOR() should end with
> a semicolon:
>
> ...
> bad: MY_ITERATOR(v, 20)
> BAD:!!!!! {
> bad: printf("%i\n", v);
> ...
>
> I tried specifying "--undefined MY_ITERATOR", but that did nothing.
If you just want to get it to parse, but don't care about the iterator
behavior, you can put the following in standard.h
#define MY_ITERATOR(x) MACROSTATEMENT
A feature that was considered, but I don't remember whether it was
implemented, was to put
iterator name MY_ITERATOR;
in some rule of the semantic patch. Then Coccinelle would know about the
looping behavior as well. But I don't know if that works.
--undefined is for choosing ifdef branches.
julia
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