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
68
69
70
71
72
73
74
75
|
#define i_implement
#include <stc/cstr.h>
typedef struct { cstr name, last; } Person;
Person Person_make(const char* name, const char* last);
Person Person_clone(Person p);
void Person_drop(Person* p);
int Person_cmp(const Person* a, const Person* b);
uint64_t Person_hash(const Person* p);
#define i_type PersonArc
#define i_keyclass Person // "class" assume _clone, _drop, _cmp, _hash is defined.
#include <stc/carc.h>
#define i_type IPtr
#define i_key int
#define i_keydrop(x) printf("drop: %d\n", *x)
#define i_cmp_native
#include <stc/carc.h>
#define i_type IPStack
#define i_keyboxed IPtr
#include <stc/cstack.h>
#define i_type PASet
#define i_keyboxed PersonArc
#include <stc/cset.h>
Person Person_make(const char* name, const char* last) {
Person p = {.name = cstr_from(name), .last = cstr_from(last)};
return p;
}
int Person_cmp(const Person* a, const Person* b) {
return cstr_cmp(&a->name, &b->name);
}
uint64_t Person_hash(const Person* p) {
return cstr_hash(&p->name);
}
Person Person_clone(Person p) {
p.name = cstr_clone(p.name), p.last = cstr_clone(p.last);
return p;
}
void Person_drop(Person* p) {
printf("drop: %s %s\n", cstr_str(&p->name), cstr_str(&p->last));
c_drop(cstr, &p->name, &p->last);
}
int main(void) {
puts("Ex1");
PersonArc p = PersonArc_from(Person_make("John", "Smiths"));
PersonArc q = PersonArc_clone(p); // share
PersonArc r = PersonArc_clone(p);
PersonArc s = PersonArc_from(Person_clone(*p.get)); // deep copy
printf("%s %s: refs %ld\n", cstr_str(&p.get->name), cstr_str(&p.get->last), *p.use_count);
c_drop(PersonArc, &p, &q, &r, &s);
puts("Ex2");
IPStack vec = {0};
IPStack_push(&vec, IPtr_from(10));
IPStack_push(&vec, IPtr_from(20));
IPStack_emplace(&vec, 30); // same as IPStack_push(&vec, IPtr_from(30));
IPStack_push(&vec, IPtr_clone(*IPStack_back(&vec)));
IPStack_push(&vec, IPtr_clone(*IPStack_front(&vec)));
c_foreach (i, IPStack, vec)
printf(" (%d: refs %ld)", *i.ref->get, *i.ref->use_count);
puts("");
IPStack_drop(&vec);
}
|