| 203 |
|
} |
| 204 |
|
|
| 205 |
|
|
| 206 |
+ |
int |
| 207 |
+ |
angcmp(ap1, ap2) /* compare two angles */ |
| 208 |
+ |
ANGLE *ap1, *ap2; |
| 209 |
+ |
{ |
| 210 |
+ |
register int a1, a2; |
| 211 |
+ |
|
| 212 |
+ |
a1 = *ap1; |
| 213 |
+ |
a2 = *ap2; |
| 214 |
+ |
if (a1 == a2) { |
| 215 |
+ |
fprintf(stderr, "%s: duplicate glare angle (%d)\n", |
| 216 |
+ |
progname, a1); |
| 217 |
+ |
exit(1); |
| 218 |
+ |
} |
| 219 |
+ |
return(a1-a2); |
| 220 |
+ |
} |
| 221 |
+ |
|
| 222 |
+ |
|
| 223 |
|
init() /* initialize global variables */ |
| 224 |
|
{ |
| 225 |
|
double d; |
| 231 |
|
/* set direction vectors */ |
| 232 |
|
for (i = 0; glarang[i] != AEND; i++) |
| 233 |
|
; |
| 234 |
< |
if (i > 0 && (glarang[0] <= 0 || glarang[i-1] >= 180)) { |
| 235 |
< |
fprintf(stderr, "%s: glare angles must be between 1 and 179\n", |
| 234 |
> |
qsort(glarang, i, sizeof(ANGLE), angcmp); |
| 235 |
> |
if (i > 0 && (glarang[0] <= 0 || glarang[i-1] > 180)) { |
| 236 |
> |
fprintf(stderr, "%s: glare angles must be between 1 and 180\n", |
| 237 |
|
progname); |
| 238 |
|
exit(1); |
| 239 |
|
} |
