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| author | Russ Cox <rsc@swtch.com> | 2011-06-28 18:58:44 -0400 |
|---|---|---|
| committer | Russ Cox <rsc@swtch.com> | 2011-06-28 18:58:44 -0400 |
| commit | 29fba8562cd8585a613046b509347c905642be16 (patch) | |
| tree | 1fec89446006adf3544931356d2b94293000b757 /src/cmd/primes.c | |
| parent | 5e83be0dbf9667f7d11a167f9eacc31837ed4c7d (diff) | |
| download | plan9port-29fba8562cd8585a613046b509347c905642be16.tar.gz plan9port-29fba8562cd8585a613046b509347c905642be16.tar.bz2 plan9port-29fba8562cd8585a613046b509347c905642be16.zip | |
primes: faster output
R=rsc
http://codereview.appspot.com/4664053
Diffstat (limited to 'src/cmd/primes.c')
| -rw-r--r-- | src/cmd/primes.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/cmd/primes.c b/src/cmd/primes.c index 0e926545..42d4457e 100644 --- a/src/cmd/primes.c +++ b/src/cmd/primes.c @@ -1,5 +1,6 @@ #include <u.h> #include <libc.h> +#include <bio.h> #define ptsiz (sizeof(pt)/sizeof(pt[0])) #define whsiz (sizeof(wheel)/sizeof(wheel[0])) @@ -32,6 +33,7 @@ uchar bittab[] = void mark(double nn, long k); void ouch(void); +Biobuf bout; void main(int argc, char *argp[]) @@ -39,6 +41,8 @@ main(int argc, char *argp[]) int i; double k, temp, v, limit, nn; + Binit(&bout, 1, OWRITE); + if(argc <= 1) { fprint(2, "usage: primes starting [ending]\n"); exits("usage"); @@ -101,7 +105,7 @@ main(int argc, char *argp[]) temp = nn + i; if(temp > limit) exits(0); - print("%.0f\n", temp); + Bprint(&bout, "%lld\n", (long long)temp); if(limit >= big) exits(0); } |