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
|
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int doub(int);
int trip(int);
int half(int);
void fpv_exec(int (**fpv)(int), int n);
void fpvv_exec(int (***fpvv)(int), int n);
void fpvvv_exec(int (****fpvvv)(int), int n);
int doub(int i) {
return i * 2;
}
int trip(int i) {
return i * 3;
}
int half(int i) {
return i / 2;
}
void fpv_exec(int (**fpv)(int), int n) {
int i;
for (i = 0; fpv[i]; i++)
printf("%d\n", (fpv[i])(n));
}
void fpvv_exec(int (***fpvv)(int), int n) {
int i;
for (i = 0; fpvv[i]; i++)
fpv_exec(fpvv[i], n);
}
void fpvvv_exec(int (****fpvvv)(int), int n) {
int i;
for (i = 0; fpvvv[i]; i++)
fpvv_exec(fpvvv[i], n);
}
int main(int argc, char **argv) {
int (****fpvvv)(int);
int (*fpv[])(int) = {doub, trip, half, NULL};
int i, j, im, jm;
im = jm = 2;
fpvvv = calloc(im + 1, sizeof *fpvvv);
for (i = 0; i < im; i++) {
fpvvv[i] = calloc(jm + 1, sizeof **fpvvv);
for (j = 0; j < jm; j++) {
fpvvv[i][j] = malloc(sizeof fpv);
memcpy(fpvvv[i][j], fpv, sizeof fpv);
}
fpvvv[i][jm + 1] = NULL;
}
fpvvv[im + 1] = NULL;
for (argv++, argc--; argc; argv++, argc--)
fpvvv_exec(fpvvv, atoi(*argv));
exit(EXIT_SUCCESS);
}
|
