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Diffstat (limited to 'doc')
| -rw-r--r-- | doc/release/1.14.0-notes.rst | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/doc/release/1.14.0-notes.rst b/doc/release/1.14.0-notes.rst index 624886eb1..a4b61e038 100644 --- a/doc/release/1.14.0-notes.rst +++ b/doc/release/1.14.0-notes.rst @@ -247,6 +247,23 @@ common cache line size. This makes ``npy`` files easier to use in programs which open them with ``mmap``, especially on Linux where an ``mmap`` offset must be a multiple of the page size. +Better support for empty structured and string types +---------------------------------------------------- +Structured types can contain zero fields, and string dtypes can contain zero +characters. Zero-length strings still cannot be created directly, and must be +constructed through structured dtypes: + + str0 = np.empty(10, np.dtype([('v', str, N)]))['v'] + void0 = np.empty(10, np.void) + +It was always possible to work with these, but the following operations are +now supported for these arrays: + + * `arr.sort()` + * `arr.view(bytes)` + * `arr.resize(...)` + * `pickle.dumps(arr)` + Changes ======= |