1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
#include <stdlib.h>
#include <stdio.h>
#include "npstringarray.h"
const char *NP_Stringarray::operator[]( int position )
{
if ( mutex )
return NULL;
mutex = 1;
if ( position >= total || position < 0 )
{
snprintf( error_message, sizeof error_message, "NP_Stringarray: "
"operator[](): argument %d out of range.", position );
mutex = 0;
return NULL;
}
mutex = 0;
return ( const char *)item_list[ position ];
}
int NP_Stringarray::operator[]( const char *item )
{
if ( mutex )
return 3;
mutex = 1;
if ( !total )
{
strcpy( error_message, "NP_Stringarray: operator[](): this object is "
"empty." );
mutex = 0;
return -1;
}
if ( item == NULL )
{
strcpy( error_message, "NP_Stringarray: operator[](): NULL item pointer"
" passed as argument." );
mutex = 0;
return -1;
}
int i;
char **pointer = item_list;
for( i = 0; i < total; ++i )
if ( !strcmp( item, *pointer++ ))
break;
if ( i == total )
{
snprintf( error_message, sizeof error_message,
"NP_Stringarray: operator[](): no such item "
"has been added to this object: %s.", item );
mutex = 0;
return -2;
}
mutex = 0;
return i;
}
|
