From eabf8cad2ba1c261a3de9b07be8874d57303d9ec Mon Sep 17 00:00:00 2001
From: Jason Merrill <jason@redhat.com>
Date: Tue, 8 Mar 2022 11:34:15 -0500
Subject: [PATCH] tree: Add comment.

gcc/ChangeLog:

	* tree.h (IDENTIFIER_LENGTH): Add comment.
---
 gcc/tree.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/gcc/tree.h b/gcc/tree.h
index da6f3b3..2fedcf0 100644
--- a/gcc/tree.h
+++ b/gcc/tree.h
@@ -1080,6 +1080,7 @@ extern void omp_clause_range_check_failed (const_tree, const char *, int,
 
 /* Define fields and accessors for some special-purpose tree nodes.  */
 
+/* As with STRING_CST, in C terms this is sizeof, not strlen.  */
 #define IDENTIFIER_LENGTH(NODE) \
   (IDENTIFIER_NODE_CHECK (NODE)->identifier.id.len)
 #define IDENTIFIER_POINTER(NODE) \
-- 
2.7.4