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| author |   ast <ast@NetBSD.org> | 2014-10-02 21:36:37 +0000 |
|---|---|---|
| committer | ast <ast@NetBSD.org> | 2014-10-02 21:36:37 +0000 |
| commit | 2eb43769534644ef8af78e6a1fa70c755d41200b (patch) | |
| tree | f39dbbb28c3e53e18a61d031583f9cccc1c89416 /primes/Makefile | |
| parent | d43706be7b336fd46d5a93d300182a17193f5544 (diff) | |
| download | bsdgames-darwin-2eb43769534644ef8af78e6a1fa70c755d41200b.tar.gz bsdgames-darwin-2eb43769534644ef8af78e6a1fa70c755d41200b.tar.zst bsdgames-darwin-2eb43769534644ef8af78e6a1fa70c755d41200b.zip | |
Imported and adapted from FreeBSD svn r272166 and r272207; this fixes
false positives for products of primes larger than 2^16. For example,
before this commit:
$ /usr/games/primes 4295360521 4295360522
4295360521
but
$ /usr/games/factor 4295360521
4295360521: 65539 65539
or
$ /usr/games/primes 3825123056546413049 3825123056546413050
3825123056546413049
yet
$ /usr/games/factor 3825123056546413049
3825123056546413049: 165479 23115459100831
or
$ /usr/games/primes 18446744073709551577
18446744073709551577
although
$ /usr/games/factor 18446744073709551577
18446744073709551577: 139646831 132095686967
Incidentally, the above examples show the smallest and largest cases that
were erroneously stated as prime in the range 2^32 .. 3825123056546413049
.. 2^64; the primes(6) program now stops at 3825123056546413050 as
primality tests on larger integers would be by brute force factorization.
In addition, special to the NetBSD version:
. for -d option, skip first difference when start is >65537 as it is incorrect
. corrected usage to mention both the existing -d as well as the new -h option
For original FreeBSD commit message by Colin Percival, see:
http://svnweb.freebsd.org/base?view=revision&revision=272166
Diffstat (limited to 'primes/Makefile')
| -rw-r--r-- | primes/Makefile | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/primes/Makefile b/primes/Makefile index 42350418..8ed845cd 100644 --- a/primes/Makefile +++ b/primes/Makefile @@ -1,8 +1,8 @@ -# $NetBSD: Makefile,v 1.7 2004/02/08 13:16:25 jsm Exp $ +# $NetBSD: Makefile,v 1.8 2014/10/02 21:36:37 ast Exp $ # @(#)Makefile 8.1 (Berkeley) 5/31/93 PROG= primes -SRCS= pattern.c pr_tbl.c primes.c +SRCS= pattern.c pr_tbl.c primes.c spsp.c MAN= primes.6 DPADD= ${LIBM} LDADD= -lm |