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Dear all,
I am studying about Information Technoloy at HCMUS. Through 3 years, I never see that prototype of this function.

static void
FUNCTION(fft_halfcomplex,pass_4) (const BASE in[],
                                  const size_t istride,
                                  BASE out[],
                                  const size_t ostride,
                                  const size_t product,
                                  const size_t n,
                                  const TYPE(gsl_complex) twiddle1[],
                                  const TYPE(gsl_complex) twiddle2[],
                                  const TYPE(gsl_complex) twiddle3[])

Could You explain what the central part of this prototype (FUNCTION(fft_halfcomplex,pass_4)) is to me?
I am sure that this code can run well. If you do not belive me, you can download this at http://www.fon.hum.uva.nl/praat/download_sources.html and you will see.

Edited by NguyenHgLong: clear

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Last Post by Moschops
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Someone has created some (probably hideous) macros, FUNCTION and TYPE, which get applied to this code. Find them and see what they do, and your questions will be answered.

If I had to guess, whoever first coded this was more comfortable in some other programming language and decided to use macros to mangle C into the same shape as their more comfortable language.

This topic has been dead for over six months. Start a new discussion instead.
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