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py: Start implementing "struct" module.

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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.
This commit is contained in:
Paul Sokolovsky
2014-04-10 03:45:38 +03:00
parent acb133d1b1
commit e9db840480
9 changed files with 163 additions and 0 deletions
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py/binary.h
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@@ -4,4 +4,5 @@
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);