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[src/trunk]: src/tests/usr.bin/xlint/lint1 tests/lint: document parse error f...
details: https://anonhg.NetBSD.org/src/rev/38748a6ca7b6
branches: trunk
changeset: 984841:38748a6ca7b6
user: rillig <rillig%NetBSD.org@localhost>
date: Sun Jul 25 11:19:51 2021 +0000
description:
tests/lint: document parse error for GCC typeof
diffstat:
tests/usr.bin/xlint/lint1/gcc_typeof.c | 9 ++++++++-
tests/usr.bin/xlint/lint1/gcc_typeof.exp | 4 ++--
2 files changed, 10 insertions(+), 3 deletions(-)
diffs (31 lines):
diff -r 57ad5e08a73a -r 38748a6ca7b6 tests/usr.bin/xlint/lint1/gcc_typeof.c
--- a/tests/usr.bin/xlint/lint1/gcc_typeof.c Sun Jul 25 11:14:15 2021 +0000
+++ b/tests/usr.bin/xlint/lint1/gcc_typeof.c Sun Jul 25 11:19:51 2021 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: gcc_typeof.c,v 1.1 2021/07/25 10:57:38 rillig Exp $ */
+/* $NetBSD: gcc_typeof.c,v 1.2 2021/07/25 11:19:51 rillig Exp $ */
# 3 "gcc_typeof.c"
/*
@@ -10,6 +10,13 @@
void take_double(typeof(0.0));
void take_function_double_returning_double(
+ /*
+ * FIXME: lint's grammar uses 'typeof cast_expression', while GCC's
+ * c_parser_typeof_specifier uses 'typeof ( expression )'. The crucial
+ * difference is that lint parses the following expression as 'typeof
+ * ((0.0)(typeof(0.0))', that is, it tries to call the function 0.0,
+ * which of course is nonsense.
+ */
typeof(0.0)(
/* FIXME: GCC can parse this */
/* expect+1: error: syntax error 'typeof' [249] */
diff -r 57ad5e08a73a -r 38748a6ca7b6 tests/usr.bin/xlint/lint1/gcc_typeof.exp
--- a/tests/usr.bin/xlint/lint1/gcc_typeof.exp Sun Jul 25 11:14:15 2021 +0000
+++ b/tests/usr.bin/xlint/lint1/gcc_typeof.exp Sun Jul 25 11:19:51 2021 +0000
@@ -1,2 +1,2 @@
-gcc_typeof.c(16): error: syntax error 'typeof' [249]
-gcc_typeof.c(26): warning: passing 'pointer to function(double) returning double' to incompatible 'double', arg #1 [155]
+gcc_typeof.c(23): error: syntax error 'typeof' [249]
+gcc_typeof.c(33): warning: passing 'pointer to function(double) returning double' to incompatible 'double', arg #1 [155]
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