[Octave-bug-tracker] [bug #34351] Feature Request : rand[nep] should accept a final "class" argument

[John W. Eaton]

Follow-up Comment #2, bug #34351 (project octave):

I don't understand the details of the random number generator calculations so
I don't know how hard it would be to make them generate single precision
numbers properly.

But instead of doing the checks and conversions in each of the random
distribution functions, how about adding a private function to the
statistics/distributions directory that looks something like


  function m = gen_rand (fcn, sz, cls)
    m = fcn (sz);
    if (strcmp (cls, "single"))
      ## do appropriate conversion
     ..
    elseif (! strcmp (cls, "double"))
      error ("");
    endif
  endfunction


Then you can simplify the code in the distribution functions in approximately
the way that you would if we made the change you are suggesting:


  m = gen_rand (@randg, sz, class (n));



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