Working with bit-level data

Ecosystem
4

Note, that I sent an initial draft of bitfields implementation in Cstruct library (for now only reading is supported) here https://github.com/mirage/ocaml-cstruct/pull/215

You are welcome to check out, and feedback/complaints/patches are welcome.

It adds a syntax like this:

[%%cstruct
type some_struct = {
       field1: uint8_t;
       field2: uint32_t [@bits 15];
       field3: uint32_t [@bits 4];
       field4: uint16_t;
} [@@big_endian]]

which is an equivalent to C

struct some_struct {
       uint8_t field1;
       uint32_t field2:15;
       uint32_t field3:4;
       uint16_t field4;
} __attribute__ ((packed));
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