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
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