Erick Tryzelaar wrote:
> Jonathan Kelly wrote:
>> Hi,
>>
>> I'm trying to wrap "signal" like this ...
>>
>> //------------------
>> const SIGINT:int = "SIGINT";
>> proc signal:int*(int->void) = "signal($1, $2)";
>> proc finish(sig:int) {
>> C_hack::ignore(endwin());
>> print$ f"finish got signal %d\n" sig;
>> C_hack::ignore(gc());
>> System::exit(0);
>> } signal(SIGINT, finish);
>
> The problem you're running into will be solved if you use "the":
>
> signal(SIGINT, the finish);
>
>
>
> Of course, this leads to a new bug :) This errors out with this:
>
> foo2.cpp: In function 'void
> flxusr::foo2::_init_(flxusr::foo2::thread_frame_t*)':
> foo2.cpp:67: error: cannot convert 'flxusr::foo2::_pt6472*' to 'void
> (*)(int)' for argument '2' to 'void (* signal(int, void (*)(int)))(int)'
> compilation terminated due to -Wfatal-errors.
>
>
> Looking at the generated code, it's easy to see what the problem is.
> Here's the function:
>
> void FLX_REGPARM _init_(FLX_APAR_DECL_ONLY){
> {
> _pt6472* _tmp6500 = (FLX_NEWP(finish)(FLX_FPAR_PASS_ONLY));
> signal(SIGINT, _tmp6500)
> }
> }
>
> and the type for _pt6472:
>
> //TYPE 6472: int<1848> -> void
> struct _pt6472: con_t {
> typedef void rettype;
> typedef int argtype;
> virtual con_t *call(con_t *, int const &)=0;
> virtual _pt6472 *clone()=0;
> virtual con_t *resume()=0;
> };
>
> This obviously cannot be cast to "void (*)(int)" as it's a struct. I
> think there's some fancy thing you can do with "callback" and "-->",
> but I haven't figured it out yet.
>
> -e
>
>
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