IDZEBRA  2.1.2
zint.c
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1 /* This file is part of the Zebra server.
2  Copyright (C) Index Data
3 
4 Zebra is free software; you can redistribute it and/or modify it under
5 the terms of the GNU General Public License as published by the Free
6 Software Foundation; either version 2, or (at your option) any later
7 version.
8 
9 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
10 WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 for more details.
13 
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
17 
18 */
19 
20 #if HAVE_CONFIG_H
21 #include <config.h>
22 #endif
23 #include <stdlib.h>
24 #include <idzebra/util.h>
25 
26 void zebra_zint_encode(char **dst, zint pos)
27 {
28  unsigned char *bp = (unsigned char*) *dst;
29 
30  while (pos > 127)
31  {
32  *bp++ = (unsigned char) (128 | (pos & 127));
33  pos = pos >> 7;
34  }
35  *bp++ = (unsigned char) pos;
36  *dst = (char *) bp;
37 }
38 
39 void zebra_zint_decode(const char **src, zint *pos)
40 {
41  const unsigned char **bp = (const unsigned char **) src;
42  zint d = 0;
43  unsigned char c;
44  unsigned r = 0;
45 
46  while (((c = *(*bp)++) & 128))
47  {
48  d += ((zint) (c & 127) << r);
49  r += 7;
50  }
51  d += ((zint) c << r);
52  *pos = d;
53 }
54 
55 zint atozint(const char *src)
56 {
57 #if HAVE_ATOLL
58  return atoll(src);
59 #else
60  return atoi(src);
61 #endif
62 }
63 
64 /*
65  * Local variables:
66  * c-basic-offset: 4
67  * c-file-style: "Stroustrup"
68  * indent-tabs-mode: nil
69  * End:
70  * vim: shiftwidth=4 tabstop=8 expandtab
71  */
72 
void zebra_zint_decode(const char **src, zint *pos)
Definition: zint.c:39
zint atozint(const char *src)
Definition: zint.c:55
void zebra_zint_encode(char **dst, zint pos)
Definition: zint.c:26
long zint
Zebra integer.
Definition: util.h:66