memcpy

Laurent Pointal laurent.pointal at limsi.fr
Tue Sep 11 08:44:18 EDT 2007


Tim a écrit :
<zip>
> Can I initialize something in Python that I can get access to it's
> pointer?

No, there is no pointer in Python semantic (they exist behind the scene 
in C-Python).

> How about:
> 
> self.data =
> TOTAL_OUTPUT_PARMETERS*[TOTAL_PARAMETER_ENTRIES*[c_float()]
> 
> or
> 
> self.data = TOTAL_OUTPUT_PARMETERS*[c_char_p("temp")]
> 
> or
> 
> self.data = [TOTAL_OUTPUT_PARMETERS*1.0]*TOTAL_PARAMETER_ENTRIES
> 
> I need to be able to copy the contents of a pointer to shared memory
> into an array of floats so I can index into that array and see my
> data. I have a pointer to shared meory but I don't know how to access
> it.

See module ctypes (14.14 in library reference manual).

A+

Laurent.



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