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| author | Sebastian Berg <sebastian@sipsolutions.net> | 2020-11-04 18:44:24 -0600 |
|---|---|---|
| committer | Sebastian Berg <sebastian@sipsolutions.net> | 2020-11-24 21:25:02 -0600 |
| commit | 3cfcd221818b489712b8cfe1082743a1056b42ec (patch) | |
| tree | 23cd1d90628e138dba58f8dfca9724ea245f6dab /doc/source/reference | |
| parent | 918ed48eeffaf26b6ebc0d9a1296d756a349bc7d (diff) | |
| download | numpy-3cfcd221818b489712b8cfe1082743a1056b42ec.tar.gz | |
MAINT: Rewrite can-cast logic in terms of NEP 42
Diffstat (limited to 'doc/source/reference')
| -rw-r--r-- | doc/source/reference/global_state.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/source/reference/global_state.rst b/doc/source/reference/global_state.rst index 7bf9310e8..b59467210 100644 --- a/doc/source/reference/global_state.rst +++ b/doc/source/reference/global_state.rst @@ -83,3 +83,18 @@ in C which iterates through arrays that may or may not be contiguous in memory. Most users will have no reason to change these; for details see the :ref:`memory layout <memory-layout>` documentation. + +Using the new casting implementation +------------------------------------ + +Within NumPy 1.20 it is possible to enable the new experimental casting +implementation for testing purposes. To do this set:: + + NPY_USE_NEW_CASTINGIMPL=1 + +Setting the flag is only useful to aid with NumPy developement to ensure the +new version is bug free and should be avoided for production code. +It is a helpful test for projects that either create custom datatypes or +use for example complicated structured dtypes. The flag is expected to be +removed in 1.21 with the new version being always in use. + |