Re^3: Wrapping C constructor with opaque pointer using Platypus

This allocates memory, either on the stack or in the area for global memory:

igraph_t g;
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For Perl, you will need to allocate a buffer, more or less with:

use vars '$g';
$g = "\x00" x IGRAPH_T_SIZE;
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... and ideally you can call/compile sizeof(igraph_t) in C so your C compiler and Perl agree on how much memory should be allocated for it.

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Re^4: Wrapping C constructor with opaque pointer using Platypus by pokki (Monk) on Feb 14, 2017 at 10:13 UTC
Alright, I think I get it now (and I very obviously need to step back and find a C book somewhere). Platypus even exposes a `sizeof()` method so I can try some stuff with that. Thanks to all involved!	[reply] [d/l]