Jordan Rose via swift-users <swift-users@swift.org> schrieb am Mi. 17. Jan. 2018 um 01:38:
> Oh no, you're right, I'm sorry. You can only do that with arrays at the > moment. We do have a bug for this already. > > Jordan > But couldn’t you call it like this: lgs_notify_params_t(notify: [lgs_notify_did_enter_background]) For exactly that reason? - Geordie > > On Jan 16, 2018, at 16:37, Roderick Mann <rm...@latencyzero.com> wrote: > > Xcode can't properly parse the C header to show me the Swift signature, > but if I try calling it like this: > > let p = lgs_notify_params_t(notify: lgs_notify_did_enter_background) > lgs_notify(self.ctx, p) > > I get this error: > > Cannot convert value of type 'lgs_notify_params_t' to expected argument > type 'UnsafePointer<lgs_notify_params_t>!' > > > On Jan 16, 2018, at 13:22 , Jordan Rose <jordan_r...@apple.com> wrote: > > You can do this if you don't write '&', which incorporates the caveat that > you're not passing a stable address. But please file a bug anyway, because > the diagnostic should tell you that! > > Jordan > > > On Jan 16, 2018, at 13:10, Rick Mann via swift-users < > swift-users@swift.org> wrote: > > Is it not possible for Swift to treat C API const pointers as something > that can take let arguments? > > > LGS_EXPORT bool lgs_notify(struct lgs_context_t* ctx, const > lgs_notify_params_t* params); > . > . > . > let p = lgs_notify_params_t(...) > lgs_notify(self.ctx, &p) > ^Cannot pass immutable value as inout argument: 'p' is > a 'let' constant > > > Why isn't the "const" in the C declaration enough to let Swift know it's > const and just allow it to be a let? > > -- > Rick Mann > rm...@latencyzero.com > > > _______________________________________________ > swift-users mailing list > swift-users@swift.org > https://lists.swift.org/mailman/listinfo/swift-users > > > > > -- > Rick Mann > rm...@latencyzero.com > > > _______________________________________________ > swift-users mailing list > swift-users@swift.org > https://lists.swift.org/mailman/listinfo/swift-users >
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