Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5

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From	Dennis Lee Bieber <wlfraed@ix.netcom.com>
Newsgroups	comp.lang.python
Subject	Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5
Date	Tue, 24 May 2016 20:14:23 -0400
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On Wed, 25 May 2016 02:45:30 +1000, Chris Angelico <rosuav@gmail.com>
declaimed the following:

>
>I'm not certain of the in-memory representation of a numpy array, but
>it wouldn't surprise me if it's just a series of consecutive
>ints/floats - which would be exactly what a C or Fortran library will
>be expecting. So my understanding is that there's some basic ctypes
>wrapper code to locate the base address of the array, and then it
>passes that straight along.
>
	That leads to the question: Row-major or Column-major...

	Could have a very significant affect taking a row-major array and
passing it to code using a column-major convention.
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

Thread

Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Siyi Deng <mr.siyi.deng@gmail.com> - 2016-05-22 20:15 -0700
  Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Fabien <fabien.maussion@gmail.com> - 2016-05-23 11:27 +0200
  Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2016-05-23 20:29 +1000
  Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Siyi Deng <mr.siyi.deng@gmail.com> - 2016-05-24 00:15 -0700
    Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Chris Angelico <rosuav@gmail.com> - 2016-05-24 17:45 +1000
      Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Siyi Deng <mr.siyi.deng@gmail.com> - 2016-05-24 09:18 -0700
        Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Chris Angelico <rosuav@gmail.com> - 2016-05-25 02:26 +1000
        Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Steven D'Aprano <steve@pearwood.info> - 2016-05-25 02:32 +1000
          Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Chris Angelico <rosuav@gmail.com> - 2016-05-25 02:45 +1000
          Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Siyi Deng <mr.siyi.deng@gmail.com> - 2016-05-24 10:38 -0700
          Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2016-05-24 20:14 -0400
  Re: Interfacing a dynamic shared library gives me different results in 2.7 versus 3.5 Siyi Deng <mr.siyi.deng@gmail.com> - 2016-05-24 10:47 -0700

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