[#OBJ_NAME_new_index]
= OBJ_NAME_new_index
:mrdocs:

Allocate a new OBJ_NAME type index with custom hash, compare, and free callbacks.

== Synopsis

Declared in `<openssl/objects.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
OBJ_NAME_new_index(
    unsigned long(* hash_func)(char const*),
    int(* cmp_func)(char const*, char const*),
    void(* free_func)(char const*, int, char const*));
----

== Return Value

New positive type index on success, or 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *hash_func*
| Hash function for names of this type, or NULL for the default.
| *cmp_func*
| Comparison function for names of this type, or NULL for the default.
| *free_func*
| Optional freer invoked as free_func(name, type, data) when an entry is removed, or NULL.
|===


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