[pypy-dev] Best way to inline a primitive array in RPython?

Timothy Baldridge tbaldridge at gmail.com
Mon Oct 29 19:41:07 EDT 2018

Looking at rbuffer, rgc, and the lltype namespaces, it's not completely
clear to me how I would go about writing a struct with a resizable
primitive array inlined.

Something like:

typedef struct foo_t {
int a, b;
int _data[0];

foo_t tmp = malloc(sizeof(foo_t) + 64);

I can see that the GC has the ability to allocate "extra" memory beyond
what's required for a struct, and that lltype has the ability to inline
some lists into a struct, but how does this work in practice? And maybe I'm
missing something in the docs, so simply pointing me to some docs is also

“One of the main causes of the fall of the Roman Empire was that–lacking
zero–they had no way to indicate successful termination of their C
(Robert Firth)
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