blob: 1460141f753912fdc116b6a170387e3189455320 (
plain)
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
|
#include "uthash.h"
#include <stdlib.h> /* malloc */
#include <errno.h> /* perror */
#include <stdio.h> /* printf */
#define BUFLEN 20
#if 0
/* Print a message if the hash's no-expand flag is set. */
#undef uthash_noexpand_fyi
#undef uthash_expand_fyi
#define uthash_noexpand_fyi(tbl) printf("noexpand set\n");
#define uthash_expand_fyi(tbl) printf("hash expanded\n");
#endif
typedef struct name_rec {
char boy_name[BUFLEN];
UT_hash_handle hh;
} name_rec;
static int namecmp(void *_a, void *_b)
{
name_rec *a = (name_rec*)_a;
name_rec *b = (name_rec*)_b;
return strcmp(a->boy_name,b->boy_name);
}
int main()
{
name_rec *name, *names=NULL;
char linebuf[BUFLEN];
FILE *file;
file = fopen( "test11.dat", "r" );
if (file == NULL) {
perror("can't open: ");
exit(-1);
}
while (fgets(linebuf,BUFLEN,file) != NULL) {
name = (name_rec*)malloc(sizeof(name_rec));
if (name == NULL) {
exit(-1);
}
strcpy(name->boy_name, linebuf);
HASH_ADD_STR(names,boy_name,name);
}
fclose(file);
HASH_SORT(names,namecmp);
for(name=names; name!=NULL; name=(name_rec*)(name->hh.next)) {
printf("%s",name->boy_name);
}
return 0;
}
|