def has_shared_memory(self):
"""Check that created array shares data with input array.
"""
if self.obj is self.arr:
return True
if not isinstance(self.obj, ndarray):
return False
obj_attr = wrap.array_attrs(self.obj)
return obj_attr[0] == self.arr_attr[0]
def has_shared_memory(self):
"""Check that created array shares data with input array.
"""
if self.obj is self.arr:
return True
if not isinstance(self.obj,ndarray):
return False
obj_attr = wrap.array_attrs(self.obj)
return obj_attr[0]==self.arr_attr[0]
def __init__(self, typ, dims, intent, obj):
self.type = typ
self.dims = dims
self.intent = intent
self.obj_copy = copy.deepcopy(obj)
self.obj = obj
# arr.dtypechar may be different from typ.dtypechar
self.arr = wrap.call(typ.type_num, dims, intent.flags, obj)
self.arr_attr = wrap.array_attrs(self.arr)
if len(dims) > 1:
if self.intent.is_intent('c'):
assert intent.flags & wrap.F2PY_INTENT_C
assert not self.arr.flags[
'FORTRAN'], ` self.arr.flags, obj.flags `
assert self.arr.flags['CONTIGUOUS']
assert not self.arr_attr[6] & wrap.FORTRAN
else:
assert not intent.flags & wrap.F2PY_INTENT_C
assert self.arr.flags['FORTRAN']
assert not self.arr.flags['CONTIGUOUS']
assert self.arr_attr[6] & wrap.FORTRAN
if obj is None:
self.pyarr = None
self.pyarr_attr = None
return
if intent.is_intent('cache'):
assert isinstance(obj, ndarray), ` type(obj) `
self.pyarr = array(obj).reshape(*dims)
else:
self.pyarr = array(array(obj, dtype=typ.dtypechar).reshape(*dims),
fortran=not self.intent.is_intent('c'))
assert self.pyarr.dtype.char==typ.dtypechar,\
`self.pyarr.dtype.char,typ.dtypechar`
assert self.pyarr.flags['OWNDATA']
self.pyarr_attr = wrap.array_attrs(self.pyarr)
if len(dims) > 1:
if self.intent.is_intent('c'):
assert not self.pyarr.flags['FORTRAN']
assert self.pyarr.flags['CONTIGUOUS']
assert not self.pyarr_attr[6] & wrap.FORTRAN
else:
assert self.pyarr.flags['FORTRAN']
assert not self.pyarr.flags['CONTIGUOUS']
assert self.pyarr_attr[6] & wrap.FORTRAN
assert self.arr_attr[1] == self.pyarr_attr[1] # nd
assert self.arr_attr[2] == self.pyarr_attr[2] # dimensions
if self.arr_attr[1] <= 1:
assert self.arr_attr[3]==self.pyarr_attr[3],\
`self.arr_attr[3],self.pyarr_attr[3],self.arr.tostring(),self.pyarr.tostring()` # strides
assert self.arr_attr[5][-2:]==self.pyarr_attr[5][-2:],\
`self.arr_attr[5],self.pyarr_attr[5]` # descr
assert self.arr_attr[6]==self.pyarr_attr[6],\
`self.arr_attr[6],self.pyarr_attr[6],flags2names(0*self.arr_attr[6]-self.pyarr_attr[6]),flags2names(self.arr_attr[6]),intent` # flags
if intent.is_intent('cache'):
assert self.arr_attr[5][3]>=self.type.elsize,\
`self.arr_attr[5][3],self.type.elsize`
else:
assert self.arr_attr[5][3]==self.type.elsize,\
`self.arr_attr[5][3],self.type.elsize`
assert self.arr_equal(self.pyarr, self.arr)
if isinstance(self.obj, ndarray):
if typ.elsize == Type(obj.dtype).elsize:
if not intent.is_intent('copy') and self.arr_attr[1] <= 1:
assert self.has_shared_memory()
def flags_info(arr):
flags = wrap.array_attrs(arr)[6]
return flags2names(flags)
def flags_info(arr):
flags = wrap.array_attrs(arr)[6]
return flags2names(flags)
def __init__(self,typ,dims,intent,obj):
self.type = typ
self.dims = dims
self.intent = intent
self.obj_copy = copy.deepcopy(obj)
self.obj = obj
# arr.dtypechar may be different from typ.dtypechar
self.arr = wrap.call(typ.type_num,dims,intent.flags,obj)
self.arr_attr = wrap.array_attrs(self.arr)
if len(dims)>1:
if self.intent.is_intent('c'):
assert intent.flags & wrap.F2PY_INTENT_C
assert not self.arr.flags['FORTRAN'],`self.arr.flags,obj.flags`
assert self.arr.flags['CONTIGUOUS']
assert not self.arr_attr[6] & wrap.FORTRAN
else:
assert not intent.flags & wrap.F2PY_INTENT_C
assert self.arr.flags['FORTRAN']
assert not self.arr.flags['CONTIGUOUS']
assert self.arr_attr[6] & wrap.FORTRAN
if obj is None:
self.pyarr = None
self.pyarr_attr = None
return
if intent.is_intent('cache'):
assert isinstance(obj,ndarray),`type(obj)`
self.pyarr = array(obj).reshape(*dims)
else:
self.pyarr = array(array(obj,
dtype = typ.dtypechar).reshape(*dims),
fortran=not self.intent.is_intent('c'))
assert self.pyarr.dtype.char==typ.dtypechar,\
`self.pyarr.dtype.char,typ.dtypechar`
assert self.pyarr.flags['OWNDATA']
self.pyarr_attr = wrap.array_attrs(self.pyarr)
if len(dims)>1:
if self.intent.is_intent('c'):
assert not self.pyarr.flags['FORTRAN']
assert self.pyarr.flags['CONTIGUOUS']
assert not self.pyarr_attr[6] & wrap.FORTRAN
else:
assert self.pyarr.flags['FORTRAN']
assert not self.pyarr.flags['CONTIGUOUS']
assert self.pyarr_attr[6] & wrap.FORTRAN
assert self.arr_attr[1]==self.pyarr_attr[1] # nd
assert self.arr_attr[2]==self.pyarr_attr[2] # dimensions
if self.arr_attr[1]<=1:
assert self.arr_attr[3]==self.pyarr_attr[3],\
`self.arr_attr[3],self.pyarr_attr[3],self.arr.tostring(),self.pyarr.tostring()` # strides
assert self.arr_attr[5][-2:]==self.pyarr_attr[5][-2:],\
`self.arr_attr[5],self.pyarr_attr[5]` # descr
assert self.arr_attr[6]==self.pyarr_attr[6],\
`self.arr_attr[6],self.pyarr_attr[6],flags2names(0*self.arr_attr[6]-self.pyarr_attr[6]),flags2names(self.arr_attr[6]),intent` # flags
if intent.is_intent('cache'):
assert self.arr_attr[5][3]>=self.type.elsize,\
`self.arr_attr[5][3],self.type.elsize`
else:
assert self.arr_attr[5][3]==self.type.elsize,\
`self.arr_attr[5][3],self.type.elsize`
assert self.arr_equal(self.pyarr,self.arr)
if isinstance(self.obj,ndarray):
if typ.elsize==Type(obj.dtype).elsize:
if not intent.is_intent('copy') and self.arr_attr[1]<=1:
assert self.has_shared_memory()
