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[src/trunk]: src/tests/usr.bin/xlint/lint1 tests/lint: extend and explain tes...
details: https://anonhg.NetBSD.org/src/rev/e1c2234edb2c
branches: trunk
changeset: 380005:e1c2234edb2c
user: rillig <rillig%NetBSD.org@localhost>
date: Wed Jun 30 13:50:15 2021 +0000
description:
tests/lint: extend and explain test for implicit function declaration
diffstat:
tests/usr.bin/xlint/lint1/msg_215.c | 23 ++++++++++++++++++++---
tests/usr.bin/xlint/lint1/msg_215.exp | 4 +++-
2 files changed, 23 insertions(+), 4 deletions(-)
diffs (42 lines):
diff -r b3f6cb8a4f2d -r e1c2234edb2c tests/usr.bin/xlint/lint1/msg_215.c
--- a/tests/usr.bin/xlint/lint1/msg_215.c Wed Jun 30 12:28:03 2021 +0000
+++ b/tests/usr.bin/xlint/lint1/msg_215.c Wed Jun 30 13:50:15 2021 +0000
@@ -1,10 +1,27 @@
-/* $NetBSD: msg_215.c,v 1.3 2021年06月28日 11:27:00 rillig Exp $ */
+/* $NetBSD: msg_215.c,v 1.4 2021年06月30日 13:50:15 rillig Exp $ */
# 3 "msg_215.c"
// Test for message: function implicitly declared to return int [215]
+/*
+ * In traditional C and C90, it was possible to implicitly declare a function
+ * by just calling it, without defining a prototype first. Such a function
+ * would then be defined as taking unspecified parameters and returning int.
+ */
+
+struct str {
+ int dummy;
+};
+
+/* ARGSUSED */
void
-caller(void)
+test(struct str str)
{
- callee(12345); /* expect: [215] */
+ /* expect+1: error: function implicitly declared to return int [215] */
+ name();
+
+ /* FIXME: "type 'int'" sounds wrong. */
+ /* expect+2: error: type 'int' does not have member 'member' [101] */
+ /* expect+1: error: illegal function (type int) [149] */
+ str.member();
}
diff -r b3f6cb8a4f2d -r e1c2234edb2c tests/usr.bin/xlint/lint1/msg_215.exp
--- a/tests/usr.bin/xlint/lint1/msg_215.exp Wed Jun 30 12:28:03 2021 +0000
+++ b/tests/usr.bin/xlint/lint1/msg_215.exp Wed Jun 30 13:50:15 2021 +0000
@@ -1,1 +1,3 @@
-msg_215.c(9): error: function implicitly declared to return int [215]
+msg_215.c(21): error: function implicitly declared to return int [215]
+msg_215.c(26): error: type 'int' does not have member 'member' [101]
+msg_215.c(26): error: illegal function (type int) [149]
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