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| author | Charles Harris <charlesr.harris@gmail.com> | 2020-11-25 10:27:45 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-11-25 10:27:45 -0700 |
| commit | ba77419b101535e8ec14192c35b924b32b6a31bc (patch) | |
| tree | ad7efbc2d4648b70c4abe27c5156a8e54702dd22 /doc/source/reference | |
| parent | 44f8f9d6a73920eeb04ca577267b68b90cef6e3f (diff) | |
| parent | a806c21f787132525316002926e4780243d948cc (diff) | |
| download | numpy-ba77419b101535e8ec14192c35b924b32b6a31bc.tar.gz | |
Merge pull request #17401 from seberg/restructure-casting
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. + |