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Add cfunction tuple of types deprecation #23066

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Aug 23, 2017
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Add cfunction tuple of types deprecation #23066

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Add cfunction tuple of types deprecation
musm Aug 1, 2017
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Update docs
musm Aug 22, 2017
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Merge branch 'master' into dep
musm Aug 22, 2017
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Update docs
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musm committed Aug 22, 2017
commit 782da87acc1af57739b63a31eb4a133d9b796ac2
6 changes: 3 additions & 3 deletions doc/src/manual/calling-c-and-fortran-code.md
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Expand Up @@ -158,7 +158,7 @@ Julia function. Arguments to [`cfunction()`](@ref) are as follows:

1. A Julia Function
2. Return type
3. A tuple of input types
3. A tuple type of input types

Only platform-default C calling convention is supported. `cfunction`-generated pointers cannot
be used in calls where WINAPI expects `stdcall` function on 32-bit windows, but can be used on WIN64
Expand Down Expand Up @@ -192,11 +192,11 @@ a C `int`, so we must be sure to return `Cint` via a call to `convert` and a `ty
In order to pass this function to C, we obtain its address using the function `cfunction`:

```jldoctest mycompare
julia> const mycompare_c = cfunction(mycompare, Cint, (Ref{Cdouble}, Ref{Cdouble}));
julia> const mycompare_c = cfunction(mycompare, Cint, Tuple{Ref{Cdouble}, Ref{Cdouble}});
```

[`cfunction()`](@ref) accepts three arguments: the Julia function (`mycompare`), the return type
(`Cint`), and a tuple of the argument types, in this case to sort an array of `Cdouble`
(`Cint`), and a tuple type of the input argument types, in this case to sort an array of `Cdouble`
([`Float64`](@ref)) elements.

The final call to `qsort` looks like this:
Expand Down