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Added kl_size to klist to return number of items #120

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Added kl_size to klist to return number of items #120

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8 changes: 6 additions & 2 deletions klist.h
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Original file line number Diff line number Diff line change
Expand Up @@ -108,13 +108,16 @@
return &q->data; \
} \
SCOPE int kl_shift_##name(kl_##name##_t *kl, kltype_t *d) { \
kl1_##name *p; \
if (kl->head->next == 0) return -1; \
--kl->size; \
p = kl->head; kl->head = kl->head->next; \
kl1_##name *p = kl->head; kl->head = kl->head->next; \
if (d) *d = p->data; \
kmp_free(name, kl->mp, p); \
return 0; \
} \
SCOPE int kl_size_##name(kl_##name##_t *kl) { \
if (kl == 0 || kl->head->next == 0) return 0; \
return kl->size; \
}

#define KLIST_INIT(name, kltype_t, kmpfree_t) \
Expand All @@ -131,5 +134,6 @@
#define kl_destroy(name, kl) kl_destroy_##name(kl)
#define kl_pushp(name, kl) kl_pushp_##name(kl)
#define kl_shift(name, kl, d) kl_shift_##name(kl, d)
#define kl_size(name, kl) kl_size_##name(kl)

#endif
11 changes: 10 additions & 1 deletion test/klist_test.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7,11 +7,20 @@ KLIST_INIT(32, int, __int_free)
int main()
{
klist_t(32) *kl;
kliter_t(32) *p;
kl = kl_init(32);
printf("Initial size of list is %d\n", kl_size(32, kl));
*kl_pushp(32, kl) = 1;
*kl_pushp(32, kl) = 2;
*kl_pushp(32, kl) = 3;
*kl_pushp(32, kl) = 4;
*kl_pushp(32, kl) = 5;
*kl_pushp(32, kl) = 6;
*kl_pushp(32, kl) = 7;
*kl_pushp(32, kl) = 10;
printf("Size of list after several pushp is %d\n", kl_size(32, kl));
kl_shift(32, kl, 0);
printf("Size of list after shift is %d\n", kl_size(32, kl));
kliter_t(32) *p;
for (p = kl_begin(kl); p != kl_end(kl); p = kl_next(p))
printf("%d\n", kl_val(p));
kl_destroy(32, kl);
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