package frama-c

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in-package search v0.2.0

Platform dedicated to the analysis of source code written in C

Install

dune-project

Dependency

frama-c.com Readme Edit opam file Versions (26)

Authors

Maintainers

F

frama-ci-bot@frama-c.com

Sources

frama-c-32.0-beta-Germanium.tar.gz

sha256=868d57ef8007fe6c0836cd151d8c294003af34aa678285eff9547662cad36aa3

doc/src/frama-c.gui/wutil_once.ml.html

Source file `wutil_once.ml`

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(**************************************************************************)
(*                                                                        *)
(*  SPDX-License-Identifier LGPL-2.1                                      *)
(*  Copyright (C)                                                         *)
(*  CEA (Commissariat à l'énergie atomique et aux énergies alternatives)  *)
(*                                                                        *)
(**************************************************************************)

(* belongs to Wutil, but used by gtk_compat.{2,3}.ml *)

type ('a,'b) cell = Value of 'b | Fun of ('a -> 'b)
let get p x =
  match !p with
  | Value y -> y
  | Fun f -> let y = f x in p := Value y ; y
let once f = get (ref (Fun f))