[swift-users] Binding Regular C Functions (Gtk, Cairo, etc.)

[Jens Alfke]

> On Dec 7, 2015, at 7:39 PM, Gage Morgan via swift-users <swift-users at swift.org> wrote:
> 
> 1) Map the cairo.h file to a system module named CCairo
> 2) Include that in a file
> 3) Convert any functions you've entered in C into a Swift format, no binding "workarounds" necessary like other languages,

Yes. Swift understands that this is a C function, and follows C calling conventions in the machine code that implements the call, so there’s no glue code necessary.

(That is, this is like C++’s `extern “C”`, not like SWIG.)

—Jens
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