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Commit f952904c authored by Stefan Behnel's avatar Stefan Behnel
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merged in quick fix by Dag

parents 01a5a332 07d40c12
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Inline Side-by-side
Showing with 634 additions and 257 deletions
Cython/Compiler/Buffer.py 0 → 100644
View file @ f952904c
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Cython/Compiler/ExprNodes.py
View file @ f952904c
......@@ -1251,8 +1251,19 @@ class IndexNode(ExprNode):
#
# base ExprNode
# index ExprNode
# indices [ExprNode]
# is_buffer_access boolean Whether this is a buffer access.
#
# indices is used on buffer access, index on non-buffer access.
# The former contains a clean list of index parameters, the
# latter whatever Python object is needed for index access.
subexprs = ['base', 'index', 'indices']
indices = None
subexprs = ['base', 'index']
def __init__(self, pos, index, *args, **kw):
ExprNode.__init__(self, pos, index=index, *args, **kw)
self._index = index
def compile_time_value(self, denv):
base = self.base.compile_time_value(denv)
......@@ -1279,27 +1290,39 @@ class IndexNode(ExprNode):
self.base.analyse_types(env)
skip_child_analysis = False
buffer_access = False
if self.base.type.buffer_options is not None:
if isinstance(self.index, TupleNode):
indices = self.index.args
# is_int_indices = 0 == sum([1 for i in self.index.args if not i.type.is_int])
else:
# is_int_indices = self.index.type.is_int
indices = [self.index]
all_ints = True
for index in indices:
index.analyse_types(env)
if not index.type.is_int:
all_ints = False
if all_ints:
if len(indices) == self.base.type.buffer_options.ndim:
buffer_access = True
skip_child_analysis = True
for x in indices:
x.analyse_types(env)
if not x.type.is_int:
buffer_access = False
if buffer_access:
# self.indices = [
# x.coerce_to(PyrexTypes.c_py_ssize_t_type, env).coerce_to_simple(env)
# for x in indices]
self.indices = indices
self.index = None
self.type = self.base.type.buffer_options.dtype
self.is_temp = 1
self.is_buffer_access = True
if not self.is_buffer_access:
self.index.analyse_types(env) # ok to analyse as tuple
# Note: This might be cleaned up by having IndexNode
# parsed in a saner way and only construct the tuple if
# needed.
if not buffer_access:
if isinstance(self.index, TupleNode):
self.index.analyse_types(env, skip_children=skip_child_analysis)
elif not skip_child_analysis:
self.index.analyse_types(env)
if self.base.type.is_pyobject:
if self.index.type.is_int:
self.original_index_type = self.index.type
......@@ -1339,6 +1362,9 @@ class IndexNode(ExprNode):
return 1
def calculate_result_code(self):
if self.is_buffer_access:
return "<not needed>"
else:
return "(%s[%s])" % (
self.base.result_code, self.index.result_code)
......@@ -2197,10 +2223,10 @@ class SequenceNode(ExprNode):
for arg in self.args:
arg.analyse_target_declaration(env)
def analyse_types(self, env):
def analyse_types(self, env, skip_children=False):
for i in range(len(self.args)):
arg = self.args[i]
arg.analyse_types(env)
if not skip_children: arg.analyse_types(env)
self.args[i] = arg.coerce_to_pyobject(env)
self.type = py_object_type
self.gil_check(env)
......@@ -2305,12 +2331,12 @@ class TupleNode(SequenceNode):
gil_message = "Constructing Python tuple"
def analyse_types(self, env):
def analyse_types(self, env, skip_children=False):
if len(self.args) == 0:
self.is_temp = 0
self.is_literal = 1
else:
SequenceNode.analyse_types(self, env)
SequenceNode.analyse_types(self, env, skip_children)
self.type = tuple_type
def calculate_result_code(self):
......@@ -2813,13 +2839,18 @@ def unop_node(pos, operator, operand):
class TypecastNode(ExprNode):
# C type cast
#
# operand ExprNode
# base_type CBaseTypeNode
# declarator CDeclaratorNode
# operand ExprNode
#
# If used from a transform, one can if wanted specify the attribute
# "type" directly and leave base_type and declarator to None
subexprs = ['operand']
base_type = declarator = type = None
def analyse_types(self, env):
if self.type is None:
base_type = self.base_type.analyse(env)
_, self.type = self.declarator.analyse(base_type, env)
if self.type.is_cfunction:
......@@ -3842,6 +3873,10 @@ class CoerceToPyTypeNode(CoercionNode):
gil_message = "Converting to Python object"
def analyse_types(self, env):
# The arg is always already analysed
pass
def generate_result_code(self, code):
function = self.arg.type.to_py_function
code.putln('%s = %s(%s); %s' % (
......@@ -3866,6 +3901,10 @@ class CoerceFromPyTypeNode(CoercionNode):
error(arg.pos,
"Obtaining char * from temporary Python value")
def analyse_types(self, env):
# The arg is always already analysed
pass
def generate_result_code(self, code):
function = self.type.from_py_function
operand = self.arg.py_result()
......@@ -3924,6 +3963,10 @@ class CoerceToTempNode(CoercionNode):
gil_message = "Creating temporary Python reference"
def analyse_types(self, env):
# The arg is always already analysed
pass
def generate_result_code(self, code):
#self.arg.generate_evaluation_code(code) # Already done
# by generic generate_subexpr_evaluation_code!
......
Cython/Compiler/Main.py
View file @ f952904c
......@@ -354,9 +354,10 @@ def create_generate_code(context, options, result):
return generate_code
def create_default_pipeline(context, options, result):
from ParseTreeTransforms import WithTransform, NormalizeTree, PostParse, BufferTransform
from ParseTreeTransforms import WithTransform, NormalizeTree, PostParse
from ParseTreeTransforms import AnalyseDeclarationsTransform, AnalyseExpressionsTransform
from ParseTreeTransforms import CreateClosureClasses, MarkClosureVisitor
from Buffer import BufferTransform
from ModuleNode import check_c_classes
return [
......
Cython/Compiler/ModuleNode.py
View file @ f952904c
......@@ -1953,38 +1953,65 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
def generate_buffer_compatability_functions(self, env, code):
# will be refactored
try:
env.entries[u'numpy']
code.put("""
static int numpy_getbuffer(PyObject *obj, Py_buffer *view, int flags) {
/* This function is always called after a type-check */
/* This function is always called after a type-check; safe to cast */
PyArrayObject *arr = (PyArrayObject*)obj;
PyArray_Descr *type = (PyArray_Descr*)arr->descr;
view->buf = arr->data;
view->readonly = 0; /*fixme*/
view->format = "B"; /*fixme*/
view->ndim = arr->nd;
view->strides = arr->strides;
view->shape = arr->dimensions;
view->suboffsets = 0;
int typenum = PyArray_TYPE(obj);
if (!PyTypeNum_ISNUMBER(typenum)) {
PyErr_Format(PyExc_TypeError, "Only numeric NumPy types currently supported.");
return -1;
}
/*
NumPy format codes doesn't completely match buffer codes;
seems safest to retranslate.
01234567890123456789012345*/
const char* base_codes = "?bBhHiIlLqQfdgfdgO";
char* format = (char*)malloc(4);
char* fp = format;
*fp++ = type->byteorder;
if (PyTypeNum_ISCOMPLEX(typenum)) *fp++ = 'Z';
*fp++ = base_codes[typenum];
*fp = 0;
view->buf = arr->data;
view->readonly = !PyArray_ISWRITEABLE(obj);
view->ndim = PyArray_NDIM(arr);
view->strides = PyArray_STRIDES(arr);
view->shape = PyArray_DIMS(arr);
view->suboffsets = NULL;
view->format = format;
view->itemsize = type->elsize;
view->internal = 0;
return 0;
}
static void numpy_releasebuffer(PyObject *obj, Py_buffer *view) {
free((char*)view->format);
view->format = NULL;
}
""")
except KeyError:
pass
# For now, hard-code numpy imported as "numpy"
types = []
try:
ndarrtype = env.entries[u'numpy'].as_module.entries['ndarray'].type
types = [
(ndarrtype.typeptr_cname, "numpy_getbuffer", "numpy_releasebuffer")
]
# typeptr_cname = ndarrtype.typeptr_cname
types.append((ndarrtype.typeptr_cname, "numpy_getbuffer", "numpy_releasebuffer"))
except KeyError:
pass
code.putln("static int PyObject_GetBuffer(PyObject *obj, Py_buffer *view, int flags) {")
if len(types) > 0:
clause = "if"
for t, get, release in types:
code.putln("%s (__Pyx_TypeTest(obj, %s)) return %s(obj, view, flags);" % (clause, t, get))
......@@ -1992,10 +2019,11 @@ static void numpy_releasebuffer(PyObject *obj, Py_buffer *view) {
code.putln("else {")
code.putln("PyErr_Format(PyExc_TypeError, \"'%100s' does not have the buffer interface\", Py_TYPE(obj)->tp_name);")
code.putln("return -1;")
code.putln("}")
if len(types) > 0: code.putln("}")
code.putln("}")
code.putln("")
code.putln("static void PyObject_ReleaseBuffer(PyObject *obj, Py_buffer *view) {")
if len(types) > 0:
clause = "if"
for t, get, release in types:
code.putln("%s (__Pyx_TypeTest(obj, %s)) %s(obj, view);" % (clause, t, release))
......
Cython/Compiler/Nodes.py
View file @ f952904c
......@@ -184,10 +184,10 @@ class Node(object):
attrs = [(key, value) for key, value in self.__dict__.iteritems() if key not in filter_out]
if len(attrs) == 0:
return "<%s>" % self.__class__.__name__
return "<%s (%d)>" % (self.__class__.__name__, id(self))
else:
indent = " " * level
res = "<%s\n" % (self.__class__.__name__)
res = "<%s (%d)\n" % (self.__class__.__name__, id(self))
for key, value in attrs:
res += "%s %s: %s\n" % (indent, key, dump_child(value, level + 1))
res += "%s>" % indent
......
Cython/Compiler/ParseTreeTransforms.py
View file @ f952904c
from Cython.Compiler.Visitor import VisitorTransform, temp_name_handle, CythonTransform
from Cython.Compiler.ModuleNode import ModuleNode
from Cython.Compiler.Nodes import *
......@@ -51,12 +50,6 @@ class NormalizeTree(CythonTransform):
else:
return node
def visit_PassStatNode(self, node):
if not self.is_in_statlist:
return StatListNode(pos=node.pos, stats=[])
else:
return []
def visit_StatListNode(self, node):
self.is_in_statlist = True
self.visitchildren(node)
......@@ -72,6 +65,18 @@ class NormalizeTree(CythonTransform):
def visit_CStructOrUnionDefNode(self, node):
return self.visit_StatNode(node, True)
# Eliminate PassStatNode
def visit_PassStatNode(self, node):
if not self.is_in_statlist:
return StatListNode(pos=node.pos, stats=[])
else:
return []
# Eliminate CascadedAssignmentNode
def visit_CascadedAssignmentNode(self, node):
tmpname = temp_name_handle()
class PostParseError(CompileError): pass
......@@ -146,169 +151,6 @@ class PostParse(CythonTransform):
node.keyword_args = None
return node
class BufferTransform(CythonTransform):
"""
Run after type analysis. Takes care of the buffer functionality.
"""
scope = None
def __call__(self, node):
cymod = self.context.modules[u'__cython__']
self.buffer_type = cymod.entries[u'Py_buffer'].type
return super(BufferTransform, self).__call__(node)
def handle_scope(self, node, scope):
# For all buffers, insert extra variables in the scope.
# The variables are also accessible from the buffer_info
# on the buffer entry
bufvars = [(name, entry) for name, entry
in scope.entries.iteritems()
if entry.type.buffer_options is not None]
for name, entry in bufvars:
# Variable has buffer opts, declare auxiliary vars
bufopts = entry.type.buffer_options
bufinfo = scope.declare_var(temp_name_handle(u"%s_bufinfo" % name),
self.buffer_type, node.pos)
temp_var = scope.declare_var(temp_name_handle(u"%s_tmp" % name),
entry.type, node.pos)
stridevars = []
shapevars = []
for idx in range(bufopts.ndim):
# stride
varname = temp_name_handle(u"%s_%s%d" % (name, "stride", idx))
var = scope.declare_var(varname, PyrexTypes.c_int_type, node.pos, is_cdef=True)
stridevars.append(var)
# shape
varname = temp_name_handle(u"%s_%s%d" % (name, "shape", idx))
var = scope.declare_var(varname, PyrexTypes.c_uint_type, node.pos, is_cdef=True)
shapevars.append(var)
entry.buffer_aux = Symtab.BufferAux(bufinfo, stridevars,
shapevars)
entry.buffer_aux.temp_var = temp_var
self.scope = scope
def visit_ModuleNode(self, node):
self.handle_scope(node, node.scope)
self.visitchildren(node)
return node
def visit_FuncDefNode(self, node):
self.handle_scope(node, node.local_scope)
self.visitchildren(node)
return node
acquire_buffer_fragment = TreeFragment(u"""
TMP = LHS
if TMP is not None:
__cython__.PyObject_ReleaseBuffer(<__cython__.PyObject*>TMP, &BUFINFO)
TMP = RHS
__cython__.PyObject_GetBuffer(<__cython__.PyObject*>TMP, &BUFINFO, 0)
ASSIGN_AUX
LHS = TMP
""")
fetch_strides = TreeFragment(u"""
TARGET = BUFINFO.strides[IDX]
""")
fetch_shape = TreeFragment(u"""
TARGET = BUFINFO.shape[IDX]
""")
# ass = SingleAssignmentNode(pos=node.pos,
# lhs=NameNode(node.pos, name=entry.name),
# rhs=IndexNode(node.pos,
# base=AttributeNode(node.pos,
# obj=NameNode(node.pos, name=bufaux.buffer_info_var.name),
# attribute=EncodedString("strides")),
# index=IntNode(node.pos, value=EncodedString(idx))))
# print ass.dump()
def visit_SingleAssignmentNode(self, node):
self.visitchildren(node)
bufaux = node.lhs.entry.buffer_aux
if bufaux is not None:
auxass = []
for idx, entry in enumerate(bufaux.stridevars):
entry.used = True
ass = self.fetch_strides.substitute({
u"TARGET": NameNode(node.pos, name=entry.name),
u"BUFINFO": NameNode(node.pos, name=bufaux.buffer_info_var.name),
u"IDX": IntNode(node.pos, value=EncodedString(idx))
})
auxass.append(ass)
for idx, entry in enumerate(bufaux.shapevars):
entry.used = True
ass = self.fetch_shape.substitute({
u"TARGET": NameNode(node.pos, name=entry.name),
u"BUFINFO": NameNode(node.pos, name=bufaux.buffer_info_var.name),
u"IDX": IntNode(node.pos, value=EncodedString(idx))
})
auxass.append(ass)
bufaux.buffer_info_var.used = True
acq = self.acquire_buffer_fragment.substitute({
u"TMP" : NameNode(pos=node.pos, name=bufaux.temp_var.name),
u"LHS" : node.lhs,
u"RHS": node.rhs,
u"ASSIGN_AUX": StatListNode(node.pos, stats=auxass),
u"BUFINFO": NameNode(pos=node.pos, name=bufaux.buffer_info_var.name)
}, pos=node.pos)
# Note: The below should probably be refactored into something
# like fragment.substitute(..., context=self.context), with
# TreeFragment getting context.pipeline_until_now() and
# applying it on the fragment.
acq.analyse_declarations(self.scope)
acq.analyse_expressions(self.scope)
stats = acq.stats
# stats += [node] # Do assignment after successful buffer acquisition
# print acq.dump()
return stats
else:
return node
buffer_access = TreeFragment(u"""
(<unsigned char*>(BUF.buf + OFFSET))[0]
""")
def visit_IndexNode(self, node):
if node.is_buffer_access:
assert node.index is None
assert node.indices is not None
bufaux = node.base.entry.buffer_aux
assert bufaux is not None
to_sum = [ IntBinopNode(node.pos, operator='*', operand1=index,
operand2=NameNode(node.pos, name=stride.name))
for index, stride in zip(node.indices, bufaux.stridevars)]
print to_sum
indices = node.indices
# reduce * on indices
expr = to_sum[0]
for next in to_sum[1:]:
expr = IntBinopNode(node.pos, operator='+', operand1=expr, operand2=next)
tmp= self.buffer_access.substitute({
'BUF': NameNode(node.pos, name=bufaux.buffer_info_var.name),
'OFFSET': expr
})
tmp.analyse_expressions(self.scope)
return tmp.stats[0].expr
else:
return node
def visit_CallNode(self, node):
### print node.dump()
return node
# def visit_FuncDefNode(self, node):
# print node.dump()
class WithTransform(CythonTransform):
# EXCINFO is manually set to a variable that contains
......
Cython/Compiler/PyrexTypes.py
View file @ f952904c
......@@ -61,6 +61,7 @@ class PyrexType(BaseType):
# default_value string Initial value
# parsetuple_format string Format char for PyArg_ParseTuple
# pymemberdef_typecode string Type code for PyMemberDef struct
# typestring string String char defining the type (see Python struct module)
#
# declaration_code(entity_code,
# for_display = 0, dll_linkage = None, pyrex = 0)
......@@ -416,9 +417,10 @@ class CNumericType(CType):
sign_words = ("unsigned ", "", "signed ")
def __init__(self, rank, signed = 1, pymemberdef_typecode = None):
def __init__(self, rank, signed = 1, pymemberdef_typecode = None, typestring = None):
self.rank = rank
self.signed = signed
self.typestring = typestring
ptf = self.parsetuple_formats[signed][rank]
if ptf == '?':
ptf = None
......@@ -451,8 +453,9 @@ class CIntType(CNumericType):
from_py_function = "__pyx_PyInt_AsLong"
exception_value = -1
def __init__(self, rank, signed, pymemberdef_typecode = None, is_returncode = 0):
CNumericType.__init__(self, rank, signed, pymemberdef_typecode)
def __init__(self, rank, signed, pymemberdef_typecode = None, is_returncode = 0,
typestring=None):
CNumericType.__init__(self, rank, signed, pymemberdef_typecode, typestring=typestring)
self.is_returncode = is_returncode
if self.from_py_function == '__pyx_PyInt_AsLong':
self.from_py_function = self.get_type_conversion()
......@@ -543,8 +546,8 @@ class CFloatType(CNumericType):
to_py_function = "PyFloat_FromDouble"
from_py_function = "__pyx_PyFloat_AsDouble"
def __init__(self, rank, pymemberdef_typecode = None):
CNumericType.__init__(self, rank, 1, pymemberdef_typecode)
def __init__(self, rank, pymemberdef_typecode = None, typestring=None):
CNumericType.__init__(self, rank, 1, pymemberdef_typecode, typestring = typestring)
def assignable_from_resolved_type(self, src_type):
return src_type.is_numeric or src_type is error_type
......@@ -852,8 +855,11 @@ class CFuncTypeArg:
# type PyrexType
# pos source file position
def __init__(self, name, type, pos):
def __init__(self, name, type, pos, cname=None):
self.name = name
if cname is not None:
self.cname = cname
else:
self.cname = Naming.var_prefix + name
self.type = type
self.pos = pos
......@@ -1050,29 +1056,29 @@ c_void_type = CVoidType()
c_void_ptr_type = CPtrType(c_void_type)
c_void_ptr_ptr_type = CPtrType(c_void_ptr_type)
c_uchar_type = CIntType(0, 0, "T_UBYTE")
c_ushort_type = CIntType(1, 0, "T_USHORT")
c_uint_type = CUIntType(2, 0, "T_UINT")
c_ulong_type = CULongType(3, 0, "T_ULONG")
c_ulonglong_type = CULongLongType(4, 0, "T_ULONGLONG")
c_char_type = CIntType(0, 1, "T_CHAR")
c_short_type = CIntType(1, 1, "T_SHORT")
c_int_type = CIntType(2, 1, "T_INT")
c_long_type = CIntType(3, 1, "T_LONG")
c_longlong_type = CLongLongType(4, 1, "T_LONGLONG")
c_uchar_type = CIntType(0, 0, "T_UBYTE", typestring="B")
c_ushort_type = CIntType(1, 0, "T_USHORT", typestring="H")
c_uint_type = CUIntType(2, 0, "T_UINT", typestring="I")
c_ulong_type = CULongType(3, 0, "T_ULONG", typestring="L")
c_ulonglong_type = CULongLongType(4, 0, "T_ULONGLONG", typestring="Q")
c_char_type = CIntType(0, 1, "T_CHAR", typestring="b")
c_short_type = CIntType(1, 1, "T_SHORT", typestring="h")
c_int_type = CIntType(2, 1, "T_INT", typestring="i")
c_long_type = CIntType(3, 1, "T_LONG", typestring="l")
c_longlong_type = CLongLongType(4, 1, "T_LONGLONG", typestring="q")
c_py_ssize_t_type = CPySSizeTType(5, 1)
c_bint_type = CBIntType(2, 1, "T_INT")
c_bint_type = CBIntType(2, 1, "T_INT", typestring="i")
c_schar_type = CIntType(0, 2, "T_CHAR")
c_sshort_type = CIntType(1, 2, "T_SHORT")
c_sint_type = CIntType(2, 2, "T_INT")
c_slong_type = CIntType(3, 2, "T_LONG")
c_slonglong_type = CLongLongType(4, 2, "T_LONGLONG")
c_schar_type = CIntType(0, 2, "T_CHAR", typestring="b")
c_sshort_type = CIntType(1, 2, "T_SHORT", typestring="h")
c_sint_type = CIntType(2, 2, "T_INT", typestring="i")
c_slong_type = CIntType(3, 2, "T_LONG", typestring="l")
c_slonglong_type = CLongLongType(4, 2, "T_LONGLONG", typestring="q")
c_float_type = CFloatType(6, "T_FLOAT")
c_double_type = CFloatType(7, "T_DOUBLE")
c_longdouble_type = CFloatType(8)
c_float_type = CFloatType(6, "T_FLOAT", typestring="f")
c_double_type = CFloatType(7, "T_DOUBLE", typestring="d")
c_longdouble_type = CFloatType(8, typestring="g")
c_null_ptr_type = CNullPtrType(c_void_type)
c_char_array_type = CCharArrayType(None)
......@@ -1087,7 +1093,8 @@ c_returncode_type = CIntType(2, 1, "T_INT", is_returncode = 1)
c_anon_enum_type = CAnonEnumType(-1, 1)
# the Py_buffer type is defined in Builtin.py
c_py_buffer_ptr_type = CPtrType(CStructOrUnionType("Py_buffer", "struct", None, 1, "Py_buffer"))
c_py_buffer_type = CStructOrUnionType("Py_buffer", "struct", None, 1, "Py_buffer")
c_py_buffer_ptr_type = CPtrType(c_py_buffer_type)
error_type = ErrorType()
......
Cython/Compiler/Symtab.py
View file @ f952904c
......@@ -20,10 +20,12 @@ possible_identifier = re.compile(ur"(?![0-9])\w+$", re.U).match
nice_identifier = re.compile('^[a-zA-Z0-0_]+$').match
class BufferAux:
def __init__(self, buffer_info_var, stridevars, shapevars):
def __init__(self, buffer_info_var, stridevars, shapevars, tschecker):
self.buffer_info_var = buffer_info_var
self.stridevars = stridevars
self.shapevars = shapevars
self.tschecker = tschecker
def __repr__(self):
return "<BufferAux %r>" % self.__dict__
......
Cython/Compiler/Visitor.py
View file @ f952904c
......@@ -181,10 +181,14 @@ def replace_node(ptr, value):
getattr(parent, attrname)[listidx] = value
tmpnamectr = 0
def temp_name_handle(description):
def temp_name_handle(description=None):
global tmpnamectr
tmpnamectr += 1
return EncodedString(Naming.temp_prefix + u"%d_%s" % (tmpnamectr, description))
if description is not None:
name = u"%d_%s" % (tmpnamectr, description)
else:
name = u"%d" % tmpnamectr
return EncodedString(Naming.temp_prefix + name)
def get_temp_name_handle_desc(handle):
if not handle.startswith(u"__cyt_"):
......@@ -198,7 +202,7 @@ class PrintTree(TreeVisitor):
Subclass and override repr_of to provide more information
about nodes. """
def __init__(self):
Transform.__init__(self)
TreeVisitor.__init__(self)
self._indent = ""
def indent(self):
......@@ -208,6 +212,7 @@ class PrintTree(TreeVisitor):
def __call__(self, tree, phase=None):
print("Parse tree dump at phase '%s'" % phase)
self.visit(tree)
# Don't do anything about process_list, the defaults gives
# nice-looking name[idx] nodes which will visually appear
......
Includes/__cython__.pxd
View file @ f952904c
......@@ -19,5 +19,10 @@ cdef extern from "Python.h":
int PyObject_GetBuffer(PyObject* obj, Py_buffer* view, int flags) except -1
void PyObject_ReleaseBuffer(PyObject* obj, Py_buffer* view)
void PyErr_Format(int, char*, ...)
enum:
PyExc_TypeError
# int PyObject_GetBuffer(PyObject *obj, Py_buffer *view,
# int flags)
Includes/numpy.pxd 0 → 100644
View file @ f952904c
cdef extern from "Python.h":
ctypedef int Py_intptr_t
cdef extern from "numpy/arrayobject.h":
ctypedef class numpy.ndarray [object PyArrayObject]:
cdef char *data
cdef int nd
cdef Py_intptr_t *dimensions
cdef Py_intptr_t *strides
cdef object base
# descr not implemented yet here...
cdef int flags
cdef int itemsize
cdef object weakreflist
ctypedef unsigned int npy_uint8
ctypedef unsigned int npy_uint16
ctypedef unsigned int npy_uint32
ctypedef unsigned int npy_uint64
ctypedef unsigned int npy_uint96
ctypedef unsigned int npy_uint128
ctypedef signed int npy_int64
ctypedef float npy_float32
ctypedef float npy_float64
ctypedef float npy_float80
ctypedef float npy_float96
ctypedef float npy_float128
ctypedef npy_int64 Tint64
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