<feed xmlns='http://www.w3.org/2005/Atom'>
<title>suspect-devices/circuitpython/py/obj.h, branch 2.x</title>
<subtitle>CircuitPython - a Python implementation for teaching coding with microcontrollers</subtitle>
<id>https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=2.x</id>
<link rel='self' href='https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=2.x'/>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/'/>
<updated>2017-08-26T02:17:07+00:00</updated>
<entry>
<title>Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master.</title>
<updated>2017-08-26T02:17:07+00:00</updated>
<author>
<name>Dan Halbert</name>
<email>halbert@halwitz.org</email>
</author>
<published>2017-08-26T02:17:07+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=ef61b5ecb59e9b4e37e3e3c023c62d583c23eb16'/>
<id>urn:sha1:ef61b5ecb59e9b4e37e3e3c023c62d583c23eb16</id>
<content type='text'>
cpx build compiles and loads and works in repl; test suite not run yet
esp8266 not tested yet
</content>
</entry>
<entry>
<title>all: Use the name MicroPython consistently in comments</title>
<updated>2017-07-31T08:35:40+00:00</updated>
<author>
<name>Alexander Steffen</name>
<email>devel.20.webmeister@spamgourmet.com</email>
</author>
<published>2017-06-30T07:22:17+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=55f33240f3d7051d4213629e92437a36f1fac50e'/>
<id>urn:sha1:55f33240f3d7051d4213629e92437a36f1fac50e</id>
<content type='text'>
There were several different spellings of MicroPython present in comments,
when there should be only one.
</content>
</entry>
<entry>
<title>all: Unify header guard usage.</title>
<updated>2017-07-18T01:57:39+00:00</updated>
<author>
<name>Alexander Steffen</name>
<email>devel.20.webmeister@spamgourmet.com</email>
</author>
<published>2017-06-29T21:14:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=299bc625864b9e624ed599c94a5f95870516139a'/>
<id>urn:sha1:299bc625864b9e624ed599c94a5f95870516139a</id>
<content type='text'>
The code conventions suggest using header guards, but do not define how
those should look like and instead point to existing files. However, not
all existing files follow the same scheme, sometimes omitting header guards
altogether, sometimes using non-standard names, making it easy to
accidentally pick a "wrong" example.

This commit ensures that all header files of the MicroPython project (that
were not simply copied from somewhere else) follow the same pattern, that
was already present in the majority of files, especially in the py folder.

The rules are as follows.

Naming convention:
* start with the words MICROPY_INCLUDED
* contain the full path to the file
* replace special characters with _

In addition, there are no empty lines before #ifndef, between #ifndef and
one empty line before #endif. #endif is followed by a comment containing
the name of the guard macro.

py/grammar.h cannot use header guards by design, since it has to be
included multiple times in a single C file. Several other files also do not
need header guards as they are only used internally and guaranteed to be
included only once:
* MICROPY_MPHALPORT_H
* mpconfigboard.h
* mpconfigport.h
* mpthreadport.h
* pin_defs_*.h
* qstrdefs*.h
</content>
</entry>
<entry>
<title>Merge tag 'v1.9.1'</title>
<updated>2017-06-20T17:56:05+00:00</updated>
<author>
<name>Scott Shawcroft</name>
<email>scott.shawcroft@gmail.com</email>
</author>
<published>2017-06-20T17:56:05+00:00</published>
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<id>urn:sha1:30ee7019ca651bce1fe966c1089fe977d51dc92b</id>
<content type='text'>
Fixes for stmhal USB mass storage, lwIP bindings and VFS regressions

This release provides an important fix for the USB mass storage device in
the stmhal port by implementing the SCSI SYNCHRONIZE_CACHE command, which
is now require by some Operating Systems.  There are also fixes for the
lwIP bindings to improve non-blocking sockets and error codes.  The VFS has
some regressions fixed including the ability to statvfs the root.

All changes are listed below.

py core:
- modbuiltins: add core-provided version of input() function
- objstr: catch case of negative "maxsplit" arg to str.rsplit()
- persistentcode: allow to compile with complex numbers disabled
- objstr: allow to compile with obj-repr D, and unicode disabled
- modsys: allow to compile with obj-repr D and PY_ATTRTUPLE disabled
- provide mp_decode_uint_skip() to help reduce stack usage
- makeqstrdefs.py: make script run correctly with Python 2.6
- objstringio: if created from immutable object, follow copy on write policy

extmod:
- modlwip: connect: for non-blocking mode, return EINPROGRESS
- modlwip: fix error codes for duplicate calls to connect()
- modlwip: accept: fix error code for non-blocking mode
- vfs: allow to statvfs the root directory
- vfs: allow "buffering" and "encoding" args to VFS's open()
- modframebuf: fix signed/unsigned comparison pendantic warning

lib:
- libm: use isfinite instead of finitef, for C99 compatibility
- utils/interrupt_char: remove support for KBD_EXCEPTION disabled

tests:
- basics/string_rsplit: add tests for negative "maxsplit" argument
- float: convert "sys.exit()" to "raise SystemExit"
- float/builtin_float_minmax: PEP8 fixes
- basics: convert "sys.exit()" to "raise SystemExit"
- convert remaining "sys.exit()" to "raise SystemExit"

unix port:
- convert to use core-provided version of built-in import()
- Makefile: replace references to make with $(MAKE)

windows port:
- convert to use core-provided version of built-in import()

qemu-arm port:
- Makefile: adjust object-file lists to get correct dependencies
- enable micropython.mem_*() functions to allow more tests

stmhal port:
- boards: enable DAC for NUCLEO_F767ZI board
- add support for NUCLEO_F446RE board
- pass USB handler as parameter to allow more than one USB handler
- usb: use local USB handler variable in Start-of-Frame handler
- usb: make state for USB device private to top-level USB driver
- usbdev: for MSC implement SCSI SYNCHRONIZE_CACHE command
- convert from using stmhal's input() to core provided version

cc3200 port:
- convert from using stmhal's input() to core provided version

teensy port:
- convert from using stmhal's input() to core provided version

esp8266 port:
- Makefile: replace references to make with $(MAKE)
- Makefile: add clean-modules target
- convert from using stmhal's input() to core provided version

zephyr port:
- modusocket: getaddrinfo: Fix mp_obj_len() usage
- define MICROPY_PY_SYS_PLATFORM (to "zephyr")
- machine_pin: use native Zephyr types for Zephyr API calls

docs:
- machine.Pin: remove out_value() method
- machine.Pin: add on() and off() methods
- esp8266: consistently replace Pin.high/low methods with .on/off
- esp8266/quickref: polish Pin.on()/off() examples
- network: move confusingly-named cc3200 Server class to its reference
- uos: deconditionalize, remove minor port-specific details
- uos: move cc3200 port legacy VFS mounting functions to its ref doc
- machine: sort machine classes in logical order, not alphabetically
- network: first step to describe standard network class interface

examples:
- embedding: use core-provided KeyboardInterrupt object
</content>
</entry>
<entry>
<title>py/objtype: mp_obj_new_super doesn't need to be public, so inline it.</title>
<updated>2017-04-22T02:14:04+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-04-22T02:14:04+00:00</published>
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<id>urn:sha1:4df013c8ccf2e122a1bd3dd75d3937d46019409a</id>
<content type='text'>
Saves code size (20 bytes on bare-arm) and makes it a tiny bit more
efficient.
</content>
</entry>
<entry>
<title>py/objfloat: Add implementation of high-quality float hashing.</title>
<updated>2017-04-12T03:38:17+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-04-06T07:27:33+00:00</published>
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<id>urn:sha1:a73501b1d63e5240cbced95b884383b79f5d6efd</id>
<content type='text'>
Disabled by default.
</content>
</entry>
<entry>
<title>py: Optimise types for common case where type has a single parent type.</title>
<updated>2017-04-12T03:22:21+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-04-06T02:09:01+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=816413e4b20ccd463321558458bb63c310712bca'/>
<id>urn:sha1:816413e4b20ccd463321558458bb63c310712bca</id>
<content type='text'>
The common cases for inheritance are 0 or 1 parent types, for both built-in
types (eg built-in exceptions) as well as user defined types.  So it makes
sense to optimise the case of 1 parent type by storing just the type and
not a tuple of 1 value (that value being the single parent type).

This patch makes such an optimisation.  Even though there is a bit more
code to handle the two cases (either a single type or a tuple with 2 or
more values) it helps reduce overall code size because it eliminates the
need to create a static tuple to hold single parents (eg for the built-in
exceptions).  It also helps reduce RAM usage for user defined types that
only derive from a single parent.

Changes in code size (in bytes) due to this patch:

    bare-arm:       -16
    minimal (x86): -176
    unix (x86-64): -320
    unix nanbox:   -384
    stmhal:         -64
    cc3200:         -32
    esp8266:       -108
</content>
</entry>
<entry>
<title>py/obj: Clean up and add comments describing mp_obj_type_t struct.</title>
<updated>2017-04-12T03:20:26+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-04-06T00:25:32+00:00</published>
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<id>urn:sha1:fc710169b7fd8738b285c141f1850b262b26c622</id>
<content type='text'>
</content>
</entry>
<entry>
<title>py: Add very simple but correct hashing for float and complex numbers.</title>
<updated>2017-04-04T01:57:21+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-04-04T01:57:21+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=19f2e47d59b539f94a49137c379c88f0aed53cf1'/>
<id>urn:sha1:19f2e47d59b539f94a49137c379c88f0aed53cf1</id>
<content type='text'>
Hashing of float and complex numbers that are exact (real) integers should
return the same integer hash value as hashing the corresponding integer
value.  Eg hash(1), hash(1.0) and hash(1+0j) should all be the same (this
is how Python is specified: if x==y then hash(x)==hash(y)).

This patch implements the simplest way of doing float/complex hashing by
just converting the value to int and returning that value.
</content>
</entry>
<entry>
<title>py/obj.h: Make sequence grow more efficient and support overlapping.</title>
<updated>2017-04-02T07:28:24+00:00</updated>
<author>
<name>Damien George</name>
<email>damien.p.george@gmail.com</email>
</author>
<published>2017-04-02T07:28:24+00:00</published>
<link rel='alternate' type='text/html' href='https://git.suspectdevices.com/suspect-devices/circuitpython/commit/?id=a5500a8aad263054e9530a03da18c0c0961424b2'/>
<id>urn:sha1:a5500a8aad263054e9530a03da18c0c0961424b2</id>
<content type='text'>
The first memmove now copies less bytes in some cases (because len_adj &lt;=
slice_len), and the memcpy is replaced with memmove to support the
possibility that dest and slice regions are overlapping.
</content>
</entry>
</feed>
