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| author | Julian Taylor <jtaylor.debian@googlemail.com> | 2013-05-26 17:03:51 +0200 |
|---|---|---|
| committer | Julian Taylor <jtaylor.debian@googlemail.com> | 2013-05-28 20:27:34 +0200 |
| commit | fae8369fba4a683783280b044915b11bbca07a44 (patch) | |
| tree | 0551c9f7fecb1f6ecaab6937a3c9d79f5ffcc20b /numpy/core/numeric.py | |
| parent | 91ba6d616b528a60e6bdcc4c922b29f8173406aa (diff) | |
| download | numpy-fae8369fba4a683783280b044915b11bbca07a44.tar.gz | |
ENH: implement may_share_memory in C
memmap needs to call it in __array_finalize__ to determine if it can
drop the references on copies.
The python version if may_share_memory caused significant slowdowns when
slicing these maps.
closes gh-3364
Diffstat (limited to 'numpy/core/numeric.py')
| -rw-r--r-- | numpy/core/numeric.py | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/numpy/core/numeric.py b/numpy/core/numeric.py index a187d7c5b..bb2f3d28d 100644 --- a/numpy/core/numeric.py +++ b/numpy/core/numeric.py @@ -40,7 +40,7 @@ __all__ = ['newaxis', 'ndarray', 'flatiter', 'nditer', 'nested_iters', 'ufunc', 'Inf', 'inf', 'infty', 'Infinity', 'nan', 'NaN', 'False_', 'True_', 'bitwise_not', 'CLIP', 'RAISE', 'WRAP', 'MAXDIMS', 'BUFSIZE', 'ALLOW_THREADS', - 'ComplexWarning'] + 'ComplexWarning', 'may_share_memory'] if sys.version_info[0] < 3: __all__.extend(['getbuffer', 'newbuffer']) @@ -252,6 +252,7 @@ fromstring = multiarray.fromstring fromiter = multiarray.fromiter fromfile = multiarray.fromfile frombuffer = multiarray.frombuffer +may_share_memory = multiarray.may_share_memory if sys.version_info[0] < 3: newbuffer = multiarray.newbuffer getbuffer = multiarray.getbuffer |