circuitpython/py/binary.h
Paul Sokolovsky e9db840480 py: Start implementing "struct" module.
Only calcsize() and unpack() functions provided so far, for little-endian
byte order. Format strings don't support repition spec (like "2b3i").

Unfortunately, dealing with all the various binary type sizes and alignments
will lead to quite a bloated "binary" helper functions  - if optimizing for
speed. Need to think if using dynamic parametrized algos makes more sense.
2014-04-10 03:58:03 +03:00

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// Use special typecode to differentiate repr() of bytearray vs array.array('B')
// (underlyingly they're same).
#define BYTEARRAY_TYPECODE 0
int mp_binary_get_size(char typecode);
mp_obj_t mp_binary_get_val(char typecode, void *p, int index);
mp_obj_t mp_binary_get_val_unaligned_le(char typecode, byte **ptr);
void mp_binary_set_val(char typecode, void *p, int index, mp_obj_t val_in);