diff options
| author | jtc <jtc@NetBSD.org> | 1993-09-16 17:39:00 +0000 |
|---|---|---|
| committer | jtc <jtc@NetBSD.org> | 1993-09-16 17:39:00 +0000 |
| commit | 69a25a6a71efcadf0db55504379e7a74cecf54ca (patch) | |
| tree | 70d25a47e8da160d611afa43ef8986aa2bbe62fa /gnu/usr.bin/diff/cmpbuf.c | |
| parent | 941b6d7b199d8c66a499f0baea38c26e5882e3c6 (diff) | |
Updated to GNU Diffutils 2.4.
Diffstat (limited to 'gnu/usr.bin/diff/cmpbuf.c')
| -rw-r--r-- | gnu/usr.bin/diff/cmpbuf.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/gnu/usr.bin/diff/cmpbuf.c b/gnu/usr.bin/diff/cmpbuf.c new file mode 100644 index 00000000000..e2a4657df51 --- /dev/null +++ b/gnu/usr.bin/diff/cmpbuf.c @@ -0,0 +1,44 @@ +/* Buffer primitives for comparison operations. + Copyright (C) 1993 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#ifndef lint +static char *rcsid = "$Id: cmpbuf.c,v 1.1 1993/09/16 17:39:04 jtc Exp $"; +#endif + +#include "system.h" +#include "cmpbuf.h" + +/* Least common multiple of two buffer sizes A and B. */ + +size_t +buffer_lcm (a, b) + size_t a, b; +{ + size_t m, n, r; + + /* Yield reasonable values if buffer sizes are zero. */ + if (!a) + return b ? b : 8 * 1024; + if (!b) + return a; + + /* n = gcd (a, b) */ + for (m = a, n = b; (r = m % n) != 0; m = n, n = r) + continue; + + return a/n * b; +} |
