suspect-devices/circuitpython/py/objfloat.c, branch v1.9.1

py: Reduce str/repr precision of float numbers when floats are 30-bit.

2017-04-21T06:21:56+00:00

With 30-bit floats there aren't enough bits to faithfully print 7 decimal digits, so reduce the precision to 6 digits.

py/objfloat: Add implementation of high-quality float hashing.

2017-04-12T03:38:17+00:00

Disabled by default.

py: Add very simple but correct hashing for float and complex numbers.

2017-04-04T01:57:21+00:00

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.

py: Change mp_uint_t to size_t for mp_obj_str_get_data len arg.

2017-03-29T01:56:45+00:00

py/objfloat: Raise ZeroDivisionError for 0 to negative power.

2017-02-02T13:01:37+00:00

py: Use mp_raise_msg helper function where appropriate.

2016-10-17T01:17:37+00:00

Saves the following number of bytes of code space: 176 for bare-arm, 352 for minimal, 272 for unix x86-64, 140 for stmhal, 120 for esp8266.

py/objfloat, py/modmath: Ensure M_PI and M_E defined.

2016-05-12T12:28:45+00:00

In some compliation enviroments (e.g. mbed online compiler) with strict standards compliance, does not define constants such as M_PI. Provide fallback definitions of M_E and M_PI where needed.

py: Change first arg of type.make_new from mp_obj_t to mp_obj_type_t*.

2016-01-11T00:49:27+00:00

The first argument to the type.make_new method is naturally a uPy type, and all uses of this argument cast it directly to a pointer to a type structure. So it makes sense to just have it a pointer to a type from the very beginning (and a const pointer at that). This patch makes such a change, and removes all unnecessary casting to/from mp_obj_t.

py: Change type of .make_new and .call args: mp_uint_t becomes size_t.

2016-01-11T00:48:41+00:00

This patch changes the type signature of .make_new and .call object method slots to use size_t for n_args and n_kw (was mp_uint_t. Makes code more efficient when mp_uint_t is larger than a machine word. Doesn't affect ports when size_t and mp_uint_t have the same size.

py: Add support for 64-bit NaN-boxing object model, on 32-bit machine.

2015-11-29T14:25:36+00:00

To use, put the following in mpconfigport.h: #define MICROPY_OBJ_REPR (MICROPY_OBJ_REPR_D) #define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_DOUBLE) typedef int64_t mp_int_t; typedef uint64_t mp_uint_t; #define UINT_FMT "%llu" #define INT_FMT "%lld" Currently does not work with native emitter enabled.