From 1f5f192ab7d68c60bb5d007def4e3ede9e83fedf Mon Sep 17 00:00:00 2001
From: Steven Johnstone <steven.james.johnstone@gmail.com>
Date: Thu, 20 Nov 2025 11:02:33 +0000
Subject: [PATCH] Use memmove for overlapping memory ranges

Fixes #3736.
---
 src/prism.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/prism.c b/src/prism.c
index a87932f1b7..45817cdd8c 100644
--- a/src/prism.c
+++ b/src/prism.c
@@ -13467,7 +13467,7 @@ parse_target_implicit_parameter(pm_parser_t *parser, pm_node_t *node) {
             // remaining nodes down to fill the gap. This is extremely unlikely
             // to happen.
             if (index != implicit_parameters->size - 1) {
-                memcpy(&implicit_parameters->nodes[index], &implicit_parameters->nodes[index + 1], (implicit_parameters->size - index - 1) * sizeof(pm_node_t *));
+                memmove(&implicit_parameters->nodes[index], &implicit_parameters->nodes[index + 1], (implicit_parameters->size - index - 1) * sizeof(pm_node_t *));
             }
 
             implicit_parameters->size--;