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add dictionary-size

This commit is contained in:
Yuichi Nishiwaki 2014-06-15 00:36:38 +09:00
parent da553b9001
commit a8a56aa34e
1 changed files with 12 additions and 1 deletions
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13
src/dict.c
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@ -40,7 +40,7 @@ pic_dict_dict_ref(pic_state *pic)
e = xh_get_int(&dict->hash, key);
if (! e) {
return pic_none_value();
pic_errorf(pic, "element not found for a key: ~s", pic_sym_value(key));
}
return xh_val(e, pic_value);
}
@ -72,6 +72,16 @@ pic_dict_dict_del(pic_state *pic)
return pic_none_value();
}
static pic_value
pic_dict_dict_size(pic_state *pic)
{
struct pic_dict *dict;
pic_get_args(pic, "d", &dict);
return pic_int_value(dict->hash.count);
}
void
pic_init_dict(pic_state *pic)
{
@ -81,5 +91,6 @@ pic_init_dict(pic_state *pic)
pic_defun(pic, "dictionary-ref", pic_dict_dict_ref);
pic_defun(pic, "dictionary-set!", pic_dict_dict_set);
pic_defun(pic, "dictionary-delete", pic_dict_dict_del);
pic_defun(pic, "dictionary-size", pic_dict_dict_size);
}
}