Hi,
> The patch does not work with Visual C++ 9.0 2008. The main problem is
> this macros
>
> +#define PUSH(s) { \
> + if (stackp >= stack_end)\
> + return NULL; \
> + *stackp++ = s; \
> + }
> +
> +#define POP() ({ \
> + if (stackp <= stack) \
> + return NULL; \
> + *--stackp; \
> + })
>
> But even though I have changed those macros to
>
> #define PUSH(s) if (stackp >= stack_end) return NULL; *stackp =
> s; ++stackp;
> #define POP(var) if (stackp <= stack) return NULL; --stackp; var
> = *stackp;
>
> the resulting gvim executable seems to be losing its regex capability,
> for example typing abc and then searching for a does not work.
({ ... }) is a gcc extension that converts statements to expressions.
The expression has the value of the last statement in the block (
http://gcc.gnu.org/onlinedocs/gcc-2.95.3/gcc_4.html#SEC62
). That is, the macro can be used as
a = PUSH(s);
or in other places where an expression is expected. If you convert the
macro to a function, it should work on all compilers (and I guess it
won't even be slower since the compiler will inline the function call
automatically).
Nico
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