8000 Implement half dtype by mwiebe · Pull Request #16 · numpy/numpy · GitHub
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Implement half dtype #16

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Implement half dtype #16

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2234e1a
ENH: core: Create half/float16 data type
mwiebe Nov 10, 2010
3e06912
ENH: core: Implement half/float16 umath loops
mwiebe Dec 2, 2010
6eeeec7
ENH: core: Update the sorting module for half/float16
mwiebe Nov 10, 2010
57ce532
ENH: core: Fix up coercion rules for half/float16
mwiebe Nov 10, 2010
21c6094
ENH: core: Add half/float16 finfo support
mwiebe Nov 9, 2010
05e7f49
ENH: core: Add floating point exception support to the half/float16 type
mwiebe Nov 10, 2010
3d901cb
TST: Refactor the half test to use a fixture
mwiebe Nov 28, 2010
9cddfbc
ENH: core: Add half/float16 character code to numpy.typecodes
mwiebe Nov 11, 2010
dc4e197
DOC: core: Update docs for half/float16 type
mwiebe Nov 11, 2010
75cf9f0
ENH: Rename the half character code from 'j' to 'e'
mwiebe Nov 28, 2010
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ENH: core: Add half/float16 finfo support
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@mwiebe
mwiebe committed Dec 2, 2010
commit 21c6094809969688231b676f879269021e579efd
4 changes: 4 additions & 0 deletions numpy/core/getlimits.py
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Expand Up @@ -131,6 +131,10 @@ def _init(self, dtype):
itype = ntypes.longlong
fmt = '%s'
precname = 'long double'
elif dtype is ntypes.half:
itype = ntypes.int16
fmt = '%12.5e'
precname = 'half'
else:
raise ValueError, repr(dtype)

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8 changes: 7 additions & 1 deletion numpy/core/tests/test_getlimits.py
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Expand Up @@ -4,7 +4,7 @@
from numpy.testing import *

from numpy.core import finfo, iinfo
from numpy import single,double,longdouble
from numpy import half, single, double, longdouble
import numpy as np

##################################################
Expand All @@ -15,6 +15,12 @@ def test_singleton(self):
ftype2 = finfo(float)
assert_equal(id(ftype),id(ftype2))

class TestHalf(TestCase):
def test_singleton(self):
ftype = finfo(half)
ftype2 = finfo(half)
assert_equal(id(ftype),id(ftype2))

class TestSingle(TestCase):
def test_singleton(self):
ftype = finfo(single)
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