| Revision: | 1.5 |
| Committed: | Fri Nov 5 03:31:36 2004 UTC (20 years, 6 months ago) by greg |
| Content type: | text/plain |
| Branch: | MAIN |
| CVS Tags: | HEAD |
| Changes since 1.4: | +1 -1 lines |
| State: | FILE REMOVED |
| Log Message: | Removed unused programs and files from distribution (sources to CVS attic) |
| # | Content |
|---|---|
| 1 | #ifndef lint |
| 2 | static const char RCSid[] = "$Id: frexp.c,v 1.4 2003/11/12 18:06:54 greg Exp $"; |
| 3 | #endif |
| 4 | |
| 5 | double |
| 6 | frexp(x, ip) /* call it paranoia, I've seen the lib version */ |
| 7 | double x; |
| 8 | int *ip; |
| 9 | { |
| 10 | int neg; |
| 11 | register int i; |
| 12 | |
| 13 | if (neg = (x < 0.0)) |
| 14 | x = -x; |
| 15 | else if (x == 0.0) { |
| 16 | *ip = 0; |
| 17 | return(0.0); |
| 18 | } |
| 19 | if (x < 0.5) |
| 20 | for (i = 0; x < 0.5; i--) |
| 21 | x *= 2.0; |
| 22 | else |
| 23 | for (i = 0; x >= 1.0; i++) |
| 24 | x *= 0.5; |
| 25 | *ip = i; |
| 26 | return (neg ? -x : x); |
| 27 | } |