What am I doing wrong here. The same code compiles as "def add", but
not as "def __add__"?
cdef extern from "box2d/Common/b2Math.h":
cdef cppclass b2Vec2:
float x, y
b2Vec2()
b2Vec2(float x, float y)
b2Vec2 operator+(b2Vec2 v)
cdef class Vec2:
cdef b2Vec2 *obj
def __cinit__(self, float x=0.0, float y=0.0):
self.obj = new b2Vec2(x, y)
def __dealloc__(self):
del self.obj
# This compiles
def add(self, Vec2 other):
ret = Vec2()
ret.obj[0] = self.obj[0] + other.obj[0]
return ret
# This does not
def __add__(self, Vec2 other):
ret = Vec2()
ret.obj[0] = self.obj[0] + other.obj[0] # error here
return ret
error is "test.pyx:25:33: Cannot convert Python object to 'b2Vec2' "
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