From ba8a51dae84c0082521affa4246f2b1cb52852f2 Mon Sep 17 00:00:00 2001
From: Jephte Clain <Jephte.Clain@univ-reunion.fr>
Date: Fri, 28 Jun 2024 10:31:34 +0400
Subject: [PATCH] modifs.mineures sans commentaires

---
 src/cl.php | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/cl.php b/src/cl.php
index fe4ef52..c17f2db 100644
--- a/src/cl.php
+++ b/src/cl.php
@@ -557,6 +557,19 @@ class cl {
     return $mapped;
   }
 
+  /**
+   * indiquer si {@link self::rekey()} modifierai le tableau indiqué (s'il y a
+   * des modifications à faire)
+   */
+  static function would_rekey(?array $array, ?array $mappings, bool $inverse=false): bool {
+    if ($array === null || $mappings === null) return false;
+    if ($inverse) $mappings = array_flip($mappings);
+    foreach ($array as $key => $value) {
+      if (array_key_exists($key, $mappings)) return true;
+    }
+    return false;
+  }
+
   #############################################################################
 
   /** tester si tous les éléments du tableau satisfont la condition */