source: trunk/indexers/mg/test/simple_sum.c@ 3745

Last change on this file since 3745 was 3745, checked in by mdewsnip, 19 years ago

Addition of MG package for search and retrieval

  • Property svn:executable set to *
  • Property svn:keywords set to Author Date Id Revision
File size: 2.4 KB
Line 
1/**************************************************************************
2 *
3 * sum.c -- byte summing program
4 * Copyright (C) 1995 Tim Shimmin
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 *
20 * $Id: simple_sum.c 3745 2003-02-20 21:20:24Z mdewsnip $
21 *
22 **************************************************************************/
23
24/*
25$Log$
26Revision 1.1 2003/02/20 21:20:24 mdewsnip
27Addition of MG package for search and retrieval
28
29Revision 1.1 1999/08/10 21:18:33 sjboddie
30renamed mg-1.3d directory mg
31
32Revision 1.1 1998/11/17 09:36:00 rjmcnab
33*** empty log message ***
34
35*/
36
37/*
38 * If given -l option then just prints the length.
39 * Normally prints the sum and the length for the file.
40 */
41
42static int length_only = 0;
43
44#include <stdio.h>
45
46void
47output_sum(fname, input_file, output_file)
48char *fname;
49FILE *input_file;
50FILE *output_file;
51{
52 int ch = '\0';
53 unsigned long sum = 0;
54 unsigned long num_bytes = 0;
55
56 while((ch = getc(input_file))!=EOF){
57 sum += ch;
58 num_bytes++;
59 }
60
61 if (length_only)
62 fprintf(output_file, "%s: %ld\n", fname, num_bytes);
63 else
64 fprintf(output_file, "%s: %ld %ld\n", fname, sum, num_bytes);
65}
66
67void
68main(argc, argv)
69int argc;
70char *argv[];
71{
72 int i = 0;
73
74 /* use stdin */
75 if (argc == 1){
76 output_sum("-", stdin, stdout);
77 exit(0);
78 }
79
80 /* use args as file names for input */
81 for (i=1;i<argc; i++){
82 char *fname = argv[i];
83 FILE *input_file = NULL;
84
85 if (!length_only && (argv[i][0] == '-') && (argv[i][1] =='l') )
86 {
87 length_only = 1;
88 continue;
89 }
90
91 input_file = fopen(fname, "r");
92 if (!input_file){
93 fprintf(stderr,"Could not open %s\n", fname);
94 continue;
95 }
96 else{
97 output_sum(fname, input_file, stdout);
98 fclose(input_file);
99 }
100 }/*for*/
101 exit(0);
102
103}
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