suspect-devices/circuitpython/py/formatfloat.c, branch 3.0.0-alpha.0 CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=3.0.0-alpha.0 2017-08-21T12:04:23+00:00 py/formatfloat: Don't post-increment variable that won't be used again. 2017-08-21T12:04:23+00:00 Damien George damien.p.george@gmail.com 2017-08-21T12:04:23+00:00 urn:sha1:f5309fc4ffa2ee2bf562e18eef3e16e1c22dfb66 all: Use the name MicroPython consistently in comments 2017-07-31T08:35:40+00:00 Alexander Steffen devel.20.webmeister@spamgourmet.com 2017-06-30T07:22:17+00:00 urn:sha1:55f33240f3d7051d4213629e92437a36f1fac50e There were several different spellings of MicroPython present in comments, when there should be only one. all: Remove trailing spaces, per coding conventions. 2017-07-19T03:12:10+00:00 Damien George damien.p.george@gmail.com 2017-07-19T03:12:10+00:00 urn:sha1:761e4c7ff62896c7d8f8c3dfc3cc98a4cc4f2f6f py,extmod: Some casts and minor refactors to quiet compiler warnings. 2017-07-07T01:32:22+00:00 Tom Collins tom.collins@digi.com 2017-06-30T23:23:29+00:00 urn:sha1:145796f037715e180b441b38c1ec1ba45ff77797 py/formatfloat: Fix number of digits and exponent sign when rounding. 2017-06-13T03:36:56+00:00 Damien George damien.p.george@gmail.com 2017-06-13T03:36:56+00:00 urn:sha1:6ed4581f545069488446682ee9b052798626327d This patch fixes 2 things when printing a floating-point number that requires rounding up of the mantissa: - retain the correct precision; eg 0.99 becomes 1.0, not 1.00 - if the exponent goes from -1 to 0 then render it as +0, not -0 py/formatfloat: Remove unreachable code. 2017-01-19T12:32:16+00:00 Damien George damien.p.george@gmail.com 2017-01-19T12:32:16+00:00 urn:sha1:94a587a7506b04918417aa64aa2835f039263fa0 The if-block that this unreachable code is in has a condition "f>=5" so "fp_isless1(f)" will always fail. py/formatfloat: Fix further cases of buffer overflow in formatting. 2016-03-29T21:07:15+00:00 Damien George damien.p.george@gmail.com 2016-03-29T21:07:15+00:00 urn:sha1:e1e7657277f0c3ea6a207fa7768110475a52c39c Includes extensive test cases to catch hopefully all cases where buffer might overflow. py/formatfloat: Fix case of float format where leading digit was "10". 2016-03-29T21:03:13+00:00 Damien George damien.p.george@gmail.com 2016-03-29T21:03:13+00:00 urn:sha1:03b8bb7ec9f2da5829794ebef0394c0a69b4f643 When taking the logarithm of the float to determine the exponent, there are some edge cases that finish the log loop too large. Eg for an input value of 1e32-epsilon, this is actually less than 1e32 from the log-loop table and finishes as 10.0e31 when it should be 1.0e32. It is thus rendered as :e32 (: comes after 9 in ascii). There was the same problem with numbers less than 1. py/formatfloat: Fix buffer overflow when formatting tiny numbers. 2016-03-15T12:21:56+00:00 Damien George damien.p.george@gmail.com 2016-03-15T12:21:56+00:00 urn:sha1:cea6cf8a5e87127eccc8214cbffa2d4c8aae8527 py/formatfloat: Add ability to format doubles with exponents > 99. 2016-01-29T11:39:12+00:00 Damien George damien.p.george@gmail.com 2016-01-29T11:39:12+00:00 urn:sha1:7417ccfb0d27c7c09b5ed6468a9e3ca729af41bb For single prec, exponents never get larger than about 37. For double prec, exponents can be larger than 99 and need 3 bytes to format. This patch makes the number of bytes needed configurable. Addresses issue #1772.