def test_strided_scalar_assign(self):
# Make a CKernel that assigns fixed-size strings to float32
ck = CKernel(UnaryStridedOperation)
_lowlevel.make_assignment_kernel(
ndt.float32, ndt.type('string(15,"A")'), 'strided',
ctypes.addressof(ck.dynamic_kernel_instance))
# Do an assignment using a numpy array
src = np.array(['3.25', '-1000', '1e5'], dtype='S15')
dst = np.arange(3, dtype=np.float32)
ck(dst.ctypes.data, 4, src.ctypes.data, 15, 3)
self.assertEqual(dst.tolist(), [3.25, -1000, 1e5])
def test_single_scalar_assign(self):
# Make a CKernel that assigns one int64 to one float32
ck = CKernel(UnarySingleOperation)
_lowlevel.make_assignment_kernel(
ndt.float32, ndt.int64, 'single',
ctypes.addressof(ck.dynamic_kernel_instance))
# Do an assignment using ctypes
i64 = ctypes.c_int64(1234)
f32 = ctypes.c_float(1)
ck(ctypes.addressof(f32), ctypes.addressof(i64))
self.assertEqual(f32.value, 1234.0)
def setUp(self):
# Get a kernel from dynd
self.ck = CKernel(UnarySingleOperation)
_lowlevel.make_assignment_kernel(
ndt.float32, ndt.int64, 'single',
ctypes.addressof(self.ck.dynamic_kernel_instance))
