2D arrays - casting and accessing
- From: Cosmin Apreutesei <cosmin.apreutesei@xxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Fri, 14 Sep 2012 22:06:58 +0300
Hi,
I have a 2D array defined as "unsigned char[?][128]". I want to pass
it to png_read_image() from libpng that takes unsigned char**. Should
ffi.cast alone work? Does a 2D VLA have the same layout as in C, an
array of pointers to 1D arrays? I'm asking because ffi.cast('char**',
buf)[0] returns NULL, and I can't fill up the buffer either.
Any help appreciated.
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