diff options
Diffstat (limited to 'numpy')
| -rw-r--r-- | numpy/core/getlimits.py | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/numpy/core/getlimits.py b/numpy/core/getlimits.py index f73c21f67..fcb73e8ba 100644 --- a/numpy/core/getlimits.py +++ b/numpy/core/getlimits.py @@ -262,11 +262,15 @@ def _get_machar(ftype): raise ValueError(repr(ftype)) # Detect known / suspected types key = ftype('-0.1').newbyteorder('<').tobytes() - ma_like = _KNOWN_TYPES.get(key) - # Could be 80 bit == 10 byte extended precision, where last bytes can be - # random garbage. Try comparing first 10 bytes to pattern. - if ma_like is None and ftype == ntypes.longdouble: + ma_like = None + if ftype == ntypes.longdouble: + # Could be 80 bit == 10 byte extended precision, where last bytes can + # be random garbage. + # Comparing first 10 bytes to pattern first to avoid branching on the + # random garbage. ma_like = _KNOWN_TYPES.get(key[:10]) + if ma_like is None: + ma_like = _KNOWN_TYPES.get(key) if ma_like is not None: return ma_like # Fall back to parameter discovery |