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author | Stefan Krah <skrah@bytereef.org> | 2012-09-30 07:24:41 (GMT) |
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committer | Stefan Krah <skrah@bytereef.org> | 2012-09-30 07:24:41 (GMT) |
commit | 9a3f05e60f7c620404ddb63dc1ef48b4a11ad78f (patch) | |
tree | 3564fd230ab28a302b66352dffc7fdac016f0d38 /Modules/_decimal | |
parent | 7d0d57f22c0fb808b72ef3dc32282a71d3a90012 (diff) | |
download | cpython-9a3f05e60f7c620404ddb63dc1ef48b4a11ad78f.zip cpython-9a3f05e60f7c620404ddb63dc1ef48b4a11ad78f.tar.gz cpython-9a3f05e60f7c620404ddb63dc1ef48b4a11ad78f.tar.bz2 |
Make it clear that the pi function is modified for benchmarking purposes.
Diffstat (limited to 'Modules/_decimal')
-rw-r--r-- | Modules/_decimal/tests/bench.py | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Modules/_decimal/tests/bench.py b/Modules/_decimal/tests/bench.py index 7ab6b44..7e4a210 100644 --- a/Modules/_decimal/tests/bench.py +++ b/Modules/_decimal/tests/bench.py @@ -18,8 +18,13 @@ except ImportError: C = import_fresh_module('decimal', fresh=['_decimal']) P = import_fresh_module('decimal', blocked=['_decimal']) - -# Pi function from the decimal.py documentation +# +# NOTE: This is the pi function from the decimal documentation, modified +# for benchmarking purposes. Since floats do not have a context, the higher +# intermediate precision from the original is NOT used, so the modified +# algorithm only gives an approximation to the correctly rounded result. +# For serious use, refer to the documentation or the appropriate literature. +# def pi_float(): """native float""" lasts, t, s, n, na, d, da = 0, 3.0, 3, 1, 0, 0, 24 |