[src/trunk]: src/usr.bin/xlint/lint1 lint: improve comment about INT keeping ...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/b3f6cb8a4f2d
branches:  trunk
changeset: 380004:b3f6cb8a4f2d
user:      rillig <rillig%NetBSD.org@localhost>
date:      Wed Jun 30 12:28:03 2021 +0000

description:
lint: improve comment about INT keeping t_is_enum

diffstat:

 usr.bin/xlint/lint1/tree.c |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (28 lines):

diff -r 76ad926ea4b3 -r b3f6cb8a4f2d usr.bin/xlint/lint1/tree.c
--- a/usr.bin/xlint/lint1/tree.c        Wed Jun 30 12:26:35 2021 +0000
+++ b/usr.bin/xlint/lint1/tree.c        Wed Jun 30 12:28:03 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: tree.c,v 1.298 2021/06/29 21:16:54 rillig Exp $        */
+/*     $NetBSD: tree.c,v 1.299 2021/06/30 12:28:03 rillig Exp $        */
 
 /*
  * Copyright (c) 1994, 1995 Jochen Pohl
@@ -37,7 +37,7 @@
 
 #include <sys/cdefs.h>
 #if defined(__RCSID) && !defined(lint)
-__RCSID("$NetBSD: tree.c,v 1.298 2021/06/29 21:16:54 rillig Exp $");
+__RCSID("$NetBSD: tree.c,v 1.299 2021/06/30 12:28:03 rillig Exp $");
 #endif
 
 #include <float.h>
@@ -1748,7 +1748,8 @@ promote(op_t op, bool farg, tnode_t *tn)
                ntp = expr_dup_type(tn->tn_type);
                ntp->t_tspec = t;
                /*
-                * Keep t_is_enum so we are later able to check compatibility
+                * Keep t_is_enum even though t_tspec gets converted from
+                * ENUM to INT, so we are later able to check compatibility
                 * of enum types.
                 */
                tn = convert(op, 0, ntp, tn);