diff options
Diffstat (limited to 'include/ruby/internal/intern/hash.h')
| -rw-r--r-- | include/ruby/internal/intern/hash.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/ruby/internal/intern/hash.h b/include/ruby/internal/intern/hash.h index 3cce7f61c7..af8dfd5d8f 100644 --- a/include/ruby/internal/intern/hash.h +++ b/include/ruby/internal/intern/hash.h @@ -107,6 +107,17 @@ VALUE rb_hash(VALUE obj); VALUE rb_hash_new(void); /** + * Identical to rb_hash_new(), except it additionally specifies how many keys + * it is expected to contain. This way you can create a hash that is large enough + * for your need. For large hashes it means it won't need to be reallocated and + * rehashed as much, improving performance. + * + * @param[in] capa Designed capacity of the hash. + * @return An empty Hash, whose capacity is `capa`. + */ +VALUE rb_hash_new_capa(long capa); + +/** * Duplicates a hash. * * @param[in] hash An instance of ::rb_cHash. |