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Idris has a simple FFI, the following code is an example. %foreign "C:puts,libc" prim__puts : String -> PrimIO Int To avoid duplicate typing, we usually would write libc : String -> String libc fname = "C:" ++ fname ++ ",libc" %foreign libc "puts" prim__puts : String -> PrimIO Int Then we would like to wrap puts as more general type. Thus, we get puts : HasIO io => String -> io Int ...
Idris2 FFI
Sep 30, 2021
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