Re: Do Octave functions have corresponding c functions?

[Mike Miller]

On Thu, Nov 21, 2019 at 16:20:31 -0600, GoSim wrote:
> I downloaded the octave source files and I was expecting to find
> corresponding c-files to the functions in octave. So a function like plus()
> would have a c-coded equivalent that octave calls. But when I make a file
> search I don't find such files. How does it work? If I want to find the
> c-code that is run by a function like plus() where do I look? Thanks in
> advance.

Yes, let's take plus as an example.

First, the which function will tell you where to look.

    >> which plus
    'plus' is a built-in function from the file libinterp/corefcn/data.cc

Look in that source file for a DEFUN named 'plus'. Line 6062 in the
current development branch

  
https://hg.savannah.gnu.org/hgweb/octave/file/da163456abb3/libinterp/corefcn/data.cc#l6062

HTH,

-- 
mike

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