diff options
Diffstat (limited to 'games/primes/primes.c')
| -rw-r--r-- | games/primes/primes.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/games/primes/primes.c b/games/primes/primes.c index 5fe68f1d8df..d5a9149480f 100644 --- a/games/primes/primes.c +++ b/games/primes/primes.c @@ -1,4 +1,4 @@ -/* $OpenBSD: primes.c,v 1.8 2001/08/19 16:30:43 pjanzen Exp $ */ +/* $OpenBSD: primes.c,v 1.9 2001/08/19 22:50:57 pjanzen Exp $ */ /* $NetBSD: primes.c,v 1.5 1995/04/24 12:24:47 cgd Exp $ */ /* @@ -47,7 +47,7 @@ static char copyright[] = #if 0 static char sccsid[] = "@(#)primes.c 8.5 (Berkeley) 5/10/95"; #else -static char rcsid[] = "$OpenBSD: primes.c,v 1.8 2001/08/19 16:30:43 pjanzen Exp $"; +static char rcsid[] = "$OpenBSD: primes.c,v 1.9 2001/08/19 22:50:57 pjanzen Exp $"; #endif #endif /* not lint */ @@ -74,9 +74,9 @@ static char rcsid[] = "$OpenBSD: primes.c,v 1.8 2001/08/19 16:30:43 pjanzen Exp #include <errno.h> #include <limits.h> #include <math.h> -#include <memory.h> #include <stdio.h> #include <stdlib.h> +#include <string.h> #include <unistd.h> #include "primes.h" @@ -237,6 +237,7 @@ primes(start, stop) char *tab_lim; /* the limit to sieve on the table */ const ubig *p; /* prime table pointer */ ubig fact_lim; /* highest prime for current block */ + ubig mod; /* * A number of systems can not convert double values into unsigned @@ -317,13 +318,12 @@ primes(start, stop) p = &prime[7]; /* 19 is next prime, pi(19)=7 */ do { /* determine the factor's initial sieve point */ - q = (char *)(start%factor); /* temp storage for mod */ - if ((long)q & 0x1) { - q = &table[(factor-(long)q)/2]; - } else { - q = &table[q ? factor-((long)q/2) : 0]; - } - /* sive for our current factor */ + mod = start % factor; + if (mod & 0x1) + q = &table[(factor - mod)/2]; + else + q = &table[mod ? factor-(mod/2) : 0]; + /* sieve for our current factor */ for ( ; q < tab_lim; q += factor) { *q = '\0'; /* sieve out a spot */ } |