This is an alternative to passing a copy callback which is some times inconvenient. Instead the caller can write to the key - needed when the key is duplicated memory. Allows for minor optimization in ghash/gset use. Also add BLI_gset_ensure_p_ex
This is an alternative to passing a copy callback which is some times inconvenient. Instead the caller can write to the key - needed when the key is duplicated memory. Allows for minor optimization in ghash/gset use. Also add BLI_gset_ensure_p_ex