Module Name:    src
Committed By:   rillig
Date:           Sun Sep 12 16:08:14 UTC 2021

Modified Files:
        src/tests/usr.bin/xlint/lint1: msg_027.c msg_027.exp

Log Message:
tests/lint: demonstrate parse error for function-type parameters

Seen in sbin/fsck_lfs/vnode.c(104), where lint wrongly complains:

        error: redeclaration of register_vget [27]


To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/tests/usr.bin/xlint/lint1/msg_027.c \
    src/tests/usr.bin/xlint/lint1/msg_027.exp

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/tests/usr.bin/xlint/lint1/msg_027.c
diff -u src/tests/usr.bin/xlint/lint1/msg_027.c:1.3 src/tests/usr.bin/xlint/lint1/msg_027.c:1.4
--- src/tests/usr.bin/xlint/lint1/msg_027.c:1.3	Sun Jan 31 11:12:07 2021
+++ src/tests/usr.bin/xlint/lint1/msg_027.c	Sun Sep 12 16:08:14 2021
@@ -1,4 +1,4 @@
-/*	$NetBSD: msg_027.c,v 1.3 2021/01/31 11:12:07 rillig Exp $	*/
+/*	$NetBSD: msg_027.c,v 1.4 2021/09/12 16:08:14 rillig Exp $	*/
 # 3 "msg_027.c"
 
 // Test for message: redeclaration of %s [27]
@@ -6,3 +6,19 @@
 extern int identifier(void);
 
 extern double identifier(void);		/* expect: 27 */
+
+/*
+ * As of 2021-09-12, lint complains about mismatched types.
+ * GCC and Clang accept this.
+ *
+ * Above:
+ *     function(pointer to void, int) returning void
+ *
+ * Below: function(
+ *     pointer to void,
+ *     pointer to function(pointer to void, int) returning pointer to double
+ * ) returning void
+ */
+void function_parameter(void *, double *(void *, int));
+/* expect+1: error: redeclaration of function_parameter [27] */
+void function_parameter(void *fs, double *func(void *, int));
Index: src/tests/usr.bin/xlint/lint1/msg_027.exp
diff -u src/tests/usr.bin/xlint/lint1/msg_027.exp:1.3 src/tests/usr.bin/xlint/lint1/msg_027.exp:1.4
--- src/tests/usr.bin/xlint/lint1/msg_027.exp:1.3	Sun Mar 21 20:44:59 2021
+++ src/tests/usr.bin/xlint/lint1/msg_027.exp	Sun Sep 12 16:08:14 2021
@@ -1 +1,2 @@
 msg_027.c(8): error: redeclaration of identifier [27]
+msg_027.c(24): error: redeclaration of function_parameter [27]

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