---
name: "Ephemeron.K1"
section: "3o"
platform: "linux"
package: "ocaml"
version: "5.5.0-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/Ephemeron.K1"
---

# Ephemeron.K1(3o)

Ephemerons with one key.

## NAME

Ephemeron.K1 - Ephemerons with one key.

## Module

Module   Ephemeron.K1

## Documentation

Module **K1**\
  :  **sig end**

Ephemerons with one key.

*type* **('k, 'd)** *t*

an ephemeron with one key

*val make* :  **'k -\> 'd -\> ('k, 'd) t**

**Ephemeron.K1.make k d** creates an ephemeron with key  **k** and data  **d** .

*val query* :  **('k, 'd) t -\> 'k -\> 'd option**

**Ephemeron.K1.query eph key** returns  **Some x** (where  **x** is the ephemeron's data) if  **key** is physically equal to  **eph** 's key, and **None** if  **eph** is empty or  **key** is not equal to  **eph** 's key.

*module Make :* **(H : Hashtbl.HashedType) -\> sig end**

Functor building an implementation of a weak hash table

*module MakeSeeded :* **(H : Hashtbl.SeededHashedType) -\> sig end**

Functor building an implementation of a weak hash table. The seed is similar to the one of  **Hashtbl.MakeSeeded** .

*module Bucket :* **sig end**