CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=4.0.0-beta.7 2018-08-17T00:40:57+00:00 2018-08-17T00:40:57+00:00 Scott Shawcroft scott@tannewt.org 2018-08-16T01:32:37+00:00 urn:sha1:de5a9d72dcdaacdd5048195cd5bab007f4b2baef This saves code space in builds which use link-time optimization. The optimization drops the untranslated strings and replaces them with a compressed_string_t struct. It can then be decompressed to a c string. Builds without LTO work as well but include both untranslated strings and compressed strings. This work could be expanded to include QSTRs and loaded strings if a compress method is added to C. Its tracked in #531. 2018-08-09T20:29:30+00:00 Scott Shawcroft scott@tannewt.org 2018-08-09T01:24:49+00:00 urn:sha1:96ebf5bc3fb455162286b9bc31e763f3c4f1c457 * Fix finding translations with escaped characters. * Add back \r to translations since its needed by screen. 2018-07-11T20:45:30+00:00 Dan Halbert halbert@halwitz.org 2018-07-11T20:45:30+00:00 urn:sha1:7c219600a246d8956d0b23ea3f5d125a820e6b6a 2018-06-12T02:17:43+00:00 Damien George damien.p.george@gmail.com 2018-06-01T14:21:46+00:00 urn:sha1:6a445b60fad87c94a1d00ce3a043b881a1f7a5a4 This is a very convenient feature introduced in Python 3.6 by PEP 515. 2018-05-22T03:20:00+00:00 Damien George damien.p.george@gmail.com 2018-05-22T03:20:00+00:00 urn:sha1:f2ec7925542e5a75b2da7ef378f5df66fdb6fad9 2018-05-21T02:37:57+00:00 Jeff Epler jepler@gmail.com 2018-05-19T15:56:34+00:00 urn:sha1:4f71a2a75a71b89dad2eed147d6e237b633b878e Fuzz testing combined with the undefined behavior sanitizer found that parsing unreasonable float literals like 1e+9999999999999 resulted in undefined behavior due to overflow in signed integer arithmetic, and a wrong result being returned. 2018-05-21T02:27:38+00:00 Damien George damien.p.george@gmail.com 2018-05-21T02:27:38+00:00 urn:sha1:5efc575067df17be785d2b60124706d789d6cfe0 There is no need to use the mp_int_t type which may be 64-bits wide, there is enough bit-width in a normal int to parse reasonable exponents. Using int helps to reduce code size for 64-bit ports, especially nan-boxing builds. (Similarly for the "dig" variable which is now an unsigned int.) 2018-02-08T03:02:50+00:00 Damien George damien.p.george@gmail.com 2018-02-08T03:02:50+00:00 urn:sha1:b75cb8392bdf5f8c12072eac3adbdaad53d1e8d2 Prior to this patch, a float literal that was close to subnormal would have a loss of precision when parsed. The worst case was something like float('10000000000000000000e-326') which returned 0.0. 2017-11-27T01:51:52+00:00 Damien George damien.p.george@gmail.com 2017-11-27T01:51:52+00:00 urn:sha1:84895f1a210d0037a86887f0f647570bdf40afa2 This patch improves parsing of floating point numbers by converting all the digits (integer and fractional) together into a number 1 or greater, and then applying the correct power of 10 at the very end. In particular the multiple "multiply by 0.1" operations to build a fraction are now combined together and applied at the same time as the exponent, at the very end. This helps to retain precision during parsing of floats, and also includes a check that the number doesn't overflow during the parsing. One benefit is that a float will have the same value no matter where the decimal point is located, eg 1.23 == 123e-2. 2017-08-26T02:17:07+00:00 Dan Halbert halbert@halwitz.org 2017-08-26T02:17:07+00:00 urn:sha1:ef61b5ecb59e9b4e37e3e3c023c62d583c23eb16 cpx build compiles and loads and works in repl; test suite not run yet esp8266 not tested yet