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Hash#keys to update memory region directly

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This commit is contained in:
Yukihiro "Matz" Matsumoto
2014-04-01 15:19:53 +09:00
parent 312e11da39
commit 164dcd8b33
1 changed files with 5 additions and 3 deletions
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src/hash.c
+5 -3
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@@ -759,16 +759,18 @@ mrb_hash_keys(mrb_state *mrb, mrb_value hash)
{
khash_t(ht) *h = RHASH_TBL(hash);
khiter_t k;
mrb_value ary;
mrb_value ary, *p;
if (!h) return mrb_ary_new(mrb);
if (!h || kh_size(h) == 0) return mrb_ary_new(mrb);
ary = mrb_ary_new_capa(mrb, kh_size(h));
mrb_ary_set(mrb, ary, kh_size(h)-1, mrb_nil_value());
p = RARRAY_PTR(ary);
for (k = kh_begin(h); k != kh_end(h); k++) {
if (kh_exist(h, k)) {
mrb_value kv = kh_key(h,k);
mrb_hash_value hv = kh_value(h,k);
mrb_ary_set(mrb, ary, hv.n, kv);
p[hv.n] = kv;
}
}
return ary;