diff options
Diffstat (limited to 'numpy/core/multiarray.py')
| -rw-r--r-- | numpy/core/multiarray.py | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/numpy/core/multiarray.py b/numpy/core/multiarray.py index 8006dd9b5..118562c89 100644 --- a/numpy/core/multiarray.py +++ b/numpy/core/multiarray.py @@ -496,11 +496,15 @@ def can_cast(from_, to, casting=None): Notes ----- - Starting in NumPy 1.9, can_cast function now returns False in 'safe' - casting mode for integer/float dtype and string dtype if the string dtype - length is not long enough to store the max integer/float value converted - to a string. Previously can_cast in 'safe' mode returned True for - integer/float dtype and a string dtype of any length. + .. versionchanged:: 1.17.0 + Casting between a simple data type and a structured one is possible only + for "unsafe" casting. Casting to multiple fields is allowed, but + casting from multiple fields is not. + + .. versionchanged:: 1.9.0 + Casting from numeric to string types in 'safe' casting mode requires + that the string dtype length is long enough to store the maximum + integer/float value converted. See also -------- |