suspect-devices/circuitpython/py/modmath.c, branch v1.9.4

py/modmath: Convert log2 macro into a function.

2017-10-10T05:01:04+00:00

So that a pointer to it can be passed as a pointer to math_generic_1. This patch also makes the function work for single and double precision floating point.

py/modmath: Add full checks for math domain errors.

2017-10-10T04:57:45+00:00

This patch changes how most of the plain math functions are implemented: there are now two generic math wrapper functions that take a pointer to a math function (like sin, cos) and perform the necessary conversion to and from MicroPython types. This helps to reduce code size. The generic functions can also check for math domain errors in a generic way, by testing if the result is NaN or infinity combined with finite inputs. The result is that, with this patch, all math functions now have full domain error checking (even gamma and lgamma) and code size has decreased for most ports. Code size changes in bytes for those with the math module are: unix x64: -432 unix nanbox: -792 stm32: -88 esp8266: +12 Tests are also added to check domain errors are handled correctly.

py: Change obsolete "///" comment formatting to normal comments.

2017-08-30T11:02:00+00:00

This comment style is no longer used because the docs are written by hand, not generated.

all: Use the name MicroPython consistently in comments

2017-07-31T08:35:40+00:00

There were several different spellings of MicroPython present in comments, when there should be only one.

py/modmath: Check for zero division in log with 2 args.

2017-07-03T16:15:11+00:00

all: Make more use of mp_raise_{msg,TypeError,ValueError} helpers.

2017-06-15T01:54:41+00:00

py/modmath: Allow trunc/ceil/floor to return a big int if necessary.

2017-03-23T11:57:08+00:00

Previous to this patch, if the result of the trunc/ceil/floor functions overflowed a small int, or was inf or nan, then a garbage value was returned. With this patch the correct big-int is returned if necessary, and exceptions are raised for inf or nan.

py: Add MICROPY_FLOAT_CONST macro for defining float constants.

2016-11-03T01:33:01+00:00

All float constants in the core should use this macro to prevent unnecessary creation of double-precision floats, which makes code less efficient.

all: Remove 'name' member from mp_obj_module_t struct.

2016-09-21T14:23:16+00:00

One can instead lookup __name__ in the modules dict to get the value.

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.