view scripts/mk-pkg-add.sh @ 31112:bbb59cc6698c stable

factor.m: Performance tweak to avoid division in certain cases factor.m: For large numbers where only one factor lies outside the fast first round of divisions, check if it is prime before calling primes () trying to factorize it. This is up to 8000X faster for such numbers, and for an "average" input it gives a 22% to 40% speedup over a large number of trials.
author Arun Giridhar <arungiridhar@gmail.com>
date Sat, 25 Jun 2022 16:40:36 -0400
parents 796f54d4ddbf
children
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#! /bin/sh

########################################################################
##
## Copyright (C) 2002-2022 The Octave Project Developers
##
## See the file COPYRIGHT.md in the top-level directory of this
## distribution or <https://octave.org/copyright/>.
##
## This file is part of Octave.
##
## Octave is free software: you can redistribute it and/or modify it
## under the terms of the GNU General Public License as published by
## the Free Software Foundation, either version 3 of the License, or
## (at your option) any later version.
##
## Octave is distributed in the hope that it will be useful, but
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## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with Octave; see the file COPYING.  If not, see
## <https://www.gnu.org/licenses/>.
##
########################################################################

## Expecting arguments in this order:
##
##  SRCDIR SRCDIR-FILES ... -- LOCAL-FILES ...

set -e

SED=${SED:-sed}

prefix="$1/"
if [ "$1" ]; then
  shift
fi

for arg
do
  if [ "$arg" = "--" ]; then
    prefix=""
  else
    $SED -n 's/^[#%][#%]* *PKG_ADD: *//p' "$prefix$arg"
  fi
done