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#!/usr/bin/perl
#
# make-logtab
#
# Generate a table of logarithms of 2 in various bases, for use in
# estimating the output sizes of various bases.
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
$ARRAYNAME = $ENV{'ARRAYNAME'} || "s_logv_2";
$ARRAYTYPE = $ENV{'ARRAYTYPE'} || "float";
printf("const %s %s[] = {\n %0.9ff, %0.9ff, ",
$ARRAYTYPE, $ARRAYNAME, 0, 0);
$brk = 2;
for($ix = 2; $ix < 64; $ix++) {
printf("%0.9ff, ", (log(2)/log($ix)));
$brk = ($brk + 1) & 3;
if(!$brk) {
printf(" /* %2d %2d %2d %2d */\n ",
$ix - 3, $ix - 2, $ix - 1, $ix);
}
}
printf("%0.9ff\n};\n\n", (log(2)/log($ix)));
exit 0;
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