tnew seq from plan 9 (Anthony Martin) - plan9port - [fork] Plan 9 from user space
(HTM) git clone git://src.adamsgaard.dk/plan9port
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(DIR) LICENSE
---
(DIR) commit 470dce9dee60ad1c38721a8ad24247c2fd59191f
(DIR) parent 729e53b9e55756f1b0475195489cf7309a2b80ac
(HTM) Author: rsc <devnull@localhost>
Date: Thu, 12 Oct 2006 01:42:11 +0000
new seq from plan 9 (Anthony Martin)
Diffstat:
M src/cmd/seq.c | 32 ++++++++++++++++++++-----------
1 file changed, 21 insertions(+), 11 deletions(-)
---
(DIR) diff --git a/src/cmd/seq.c b/src/cmd/seq.c
t@@ -18,19 +18,19 @@ usage(void)
void
buildfmt(void)
{
- int i;
char *dp;
int w, p, maxw, maxp;
static char fmt[16];
char buf[32];
+ double val;
format = "%g\n";
if(!constant)
return;
maxw = 0;
maxp = 0;
- for(i=0; i<=nsteps; i++){
- sprint(buf, "%g", min+i*incr);
+ for(val = min; val <= max; val += incr){
+ sprint(buf, "%g", val);
if(strchr(buf, 'e')!=0)
return;
dp = strchr(buf,'.');
t@@ -49,8 +49,9 @@ buildfmt(void)
void
main(int argc, char *argv[]){
- int i, j, n;
+ int j, n;
char buf[256], ffmt[4096];
+ double val;
ARGBEGIN{
case 'w':
t@@ -78,15 +79,24 @@ main(int argc, char *argv[]){
fprint(2, "seq: zero increment\n");
exits("zero increment");
}
- nsteps = (max-min)/incr+.5;
if(!format)
buildfmt();
- for(i=0; i<=nsteps; i++){
- n = sprint(buf, format, min+i*incr);
- if(constant)
- for(j=0; buf[j]==' '; j++)
- buf[j] ='0';
- write(1, buf, n);
+ if(incr > 0){
+ for(val = min; val <= max; val += incr){
+ n = sprint(buf, format, val);
+ if(constant)
+ for(j=0; buf[j]==' '; j++)
+ buf[j] ='0';
+ write(1, buf, n);
+ }
+ }else{
+ for(val = min; val >= max; val += incr){
+ n = sprint(buf, format, val);
+ if(constant)
+ for(j=0; buf[j]==' '; j++)
+ buf[j] ='0';
+ write(1, buf, n);
+ }
}
exits(0);
}