security/nss/lib/freebl/mpi/make-logtab@b8a032363ba2 (annotated)
security/nss/lib/freebl/mpi/make-logtab
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rwxr-xr-x
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
| michael@0 | 1 | #!/usr/bin/perl |
| michael@0 | 2 | |
| michael@0 | 3 | # |
| michael@0 | 4 | # make-logtab |
| michael@0 | 5 | # |
| michael@0 | 6 | # Generate a table of logarithms of 2 in various bases, for use in |
| michael@0 | 7 | # estimating the output sizes of various bases. |
| michael@0 | 8 | |
| michael@0 | 9 | # This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 10 | # License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 11 | # file, You can obtain one at http://mozilla.org/MPL/2.0/. |
| michael@0 | 12 | |
| michael@0 | 13 | $ARRAYNAME = $ENV{'ARRAYNAME'} || "s_logv_2"; |
| michael@0 | 14 | $ARRAYTYPE = $ENV{'ARRAYTYPE'} || "float"; |
| michael@0 | 15 | |
| michael@0 | 16 | printf("const %s %s[] = {\n %0.9ff, %0.9ff, ", |
| michael@0 | 17 | $ARRAYTYPE, $ARRAYNAME, 0, 0); |
| michael@0 | 18 | $brk = 2; |
| michael@0 | 19 | for($ix = 2; $ix < 64; $ix++) { |
| michael@0 | 20 | printf("%0.9ff, ", (log(2)/log($ix))); |
| michael@0 | 21 | $brk = ($brk + 1) & 3; |
| michael@0 | 22 | if(!$brk) { |
| michael@0 | 23 | printf(" /* %2d %2d %2d %2d */\n ", |
| michael@0 | 24 | $ix - 3, $ix - 2, $ix - 1, $ix); |
| michael@0 | 25 | } |
| michael@0 | 26 | } |
| michael@0 | 27 | printf("%0.9ff\n};\n\n", (log(2)/log($ix))); |
| michael@0 | 28 | |
| michael@0 | 29 | exit 0; |
