Re: Fixed Length Array Syntax in extern(C) Function Signatures

[Timon Gehr via Digitalmars-d-learn]

On 07/09/2015 05:19 PM, "Nordlöw" wrote:

Given

     extern(C):

     struct AVFrame
     {
         uint8_t*[AV_NUM_DATA_POINTERS] data;
         int[AV_NUM_DATA_POINTERS] linesize;
         int width, height;
         ...
     }

     void av_image_copy(ubyte *[4] dst_data, int[4] dst_linesizes,
                        const ubyte *[4] src_data, const int[4]
src_linesizes,
                        AVPixelFormat pix_fmt, int width, int height)


will `dst_data` will be C-ABI-fed to `image_copy()` as a C-style single
pointer in constrast to what happens in D which calls it as fixed-size
(4) array of ubyte-pointers?

No. You'll need explicit pass by reference on the D side.