Commit Graph

14 Commits

Author SHA1 Message Date
Dave Hylands a17755ee8b py: Add ustruct.pack_into and unpack_from 2016-01-19 12:25:28 +00:00
Paul Sokolovsky 0bd3f3291d tests/base/struct1.py: Add test for repetition counters. 2015-10-31 18:55:31 +03:00
Damien George a81539db25 tests: Add further tests for mpz code. 2015-10-01 18:49:37 +01:00
Damien George 25afc7da0d tests: Add tests to improve coverage of objstr.c. 2015-09-03 23:06:18 +01:00
Paul Sokolovsky 3d3ef36e97 modstruct: Rename module to "ustruct", to allow full Python-level impl. 2015-05-04 16:53:52 +03:00
Damien George 271d18eb08 py: Support conversion of bignum to bytes.
This gets int.to_bytes working for bignum, and also struct.pack with 'q'
and 'Q' args on 32-bit machines.

Addresses issue #1155.
2015-04-25 23:16:39 +01:00
Damien George e5c4362a98 tests: Add some more tests to improve code coverage of corner cases. 2015-04-05 00:03:43 +01:00
Damien George be6d8be91e py: Rename mp_obj_int_get to mp_obj_int_get_truncated; fix struct.pack.
mp_obj_int_get_truncated is used as a "fast path" int accessor that
doesn't check for overflow and returns the int truncated to the machine
word size, ie mp_int_t.

Use mp_obj_int_get_truncated to fix struct.pack when packing maximum word
sized values.

Addresses issues #779 and #998.
2014-12-05 23:13:52 +00:00
Paul Sokolovsky 7a2f166949 modstruct: Fix alignment handling issues.
Also, factor out mp_binary_get_int() function.
2014-06-25 23:34:44 +03:00
Paul Sokolovsky df94b717b4 modstruct: Implement count specifier for strings (e.g. "100s").
Infra for counts of other types is there, need last mile to be implemented.
2014-05-12 23:45:50 +03:00
Paul Sokolovsky 6204460461 modstruct: Initial implementation of struct.pack(). 2014-04-19 03:22:08 +03:00
Paul Sokolovsky 0c43cf9154 modstruct: Basic implementation of native struct alignment and types. 2014-04-11 03:59:16 +03:00
Paul Sokolovsky 6582d64d01 modstruct: Refactor to support both LE and BE packed structs. 2014-04-11 03:58:49 +03:00
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