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py/objint: from_bytes(): Implement "byteorder" param and arbitrary precision.

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If result guaranteedly fits in a small int, it is handled in objint.c.
Otherwise, it is delegated to mp_obj_int_from_bytes_impl(), which should
be implemented by individual objint_*.c, similar to
mp_obj_int_to_bytes_impl().
This commit is contained in:
Paul Sokolovsky
2017-01-21 20:14:18 +03:00
parent 1b42f5251f
commit bec7bfb29d
3 changed files with 26 additions and 12 deletions
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py/objint.h
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@@ -59,6 +59,7 @@ char *mp_obj_int_formatted(char **buf, size_t *buf_size, size_t *fmt_size, mp_co
char *mp_obj_int_formatted_impl(char **buf, size_t *buf_size, size_t *fmt_size, mp_const_obj_t self_in,
int base, const char *prefix, char base_char, char comma);
mp_int_t mp_obj_int_hash(mp_obj_t self_in);
mp_obj_t mp_obj_int_from_bytes_impl(bool big_endian, size_t len, const byte *buf);
void mp_obj_int_to_bytes_impl(mp_obj_t self_in, bool big_endian, size_t len, byte *buf);
int mp_obj_int_sign(mp_obj_t self_in);
mp_obj_t mp_obj_int_abs(mp_obj_t self_in);