---
name: "rbhash_len"
section: "3"
platform: "linux"
package: "libroy-dev"
version: "1.0.8-1"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/rbhash_len"
---

# rbhash\_len(3)

get the number of elements stored in a RBHash.

## NAME

rbhash\_len - get the number of elements stored in a RBHash.

## SYNOPSIS

\#include \<roy.h\>

int rbhash\_len (RBHash \*hash);

## DESCRIPTION

This macro returns the length (number of elements) of the RBHash specified by the *hash* argument.

## SEE ALSO

[*rbhash*(3)](/rbhash/3.md), [*rbhash\_entry\_getkey*(3)](/rbhash_entry_getkey/3.md),  [*rbhash\_entry\_setkey*(3)](/rbhash_entry_setkey/3.md), [*rbhash\_free*(3)](/rbhash_free/3.md),  [*rbhash\_insert*(3)](/rbhash_insert/3.md), [*rbhash\_lookup*(3)](/rbhash_lookup/3.md),  [*rbhash\_lookup\_next*(3)](/rbhash_lookup_next/3.md), [*rbhash\_new*(3)](/rbhash_new/3.md),  [*rbhash\_remove*(3)](/rbhash_remove/3.md), [*rbhash\_remove\_entry*(3)](/rbhash_remove_entry/3.md),  [*roy*(3)](/roy/3.md)