Module Name: src
Committed By: rillig
Date: Mon Jul 26 17:09:46 UTC 2021
Modified Files:
src/tests/usr.bin/xlint/lint1: expr_precedence.c expr_precedence.exp
Log Message:
tests/lint: demonstrate bug in chained assignment (since 2021-07-15)
Since cgram.y 1.325 from 2021-07-15, lint has been parsing assignment
expressions correctly. It got the associativity wrong.
To generate a diff of this commit:
cvs rdiff -u -r1.3 -r1.4 src/tests/usr.bin/xlint/lint1/expr_precedence.c \
src/tests/usr.bin/xlint/lint1/expr_precedence.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/expr_precedence.c
diff -u src/tests/usr.bin/xlint/lint1/expr_precedence.c:1.3 src/tests/usr.bin/xlint/lint1/expr_precedence.c:1.4
--- src/tests/usr.bin/xlint/lint1/expr_precedence.c:1.3 Thu Jul 15 17:48:10 2021
+++ src/tests/usr.bin/xlint/lint1/expr_precedence.c Mon Jul 26 17:09:46 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: expr_precedence.c,v 1.3 2021/07/15 17:48:10 rillig Exp $ */
+/* $NetBSD: expr_precedence.c,v 1.4 2021/07/26 17:09:46 rillig Exp $ */
# 3 "expr_precedence.c"
/*
@@ -36,3 +36,15 @@ void __attribute__((format(printf,
/* Syntactically ok, must be a constant expression though. */
var > 0 ? 2 : 1)))
my_printf(const char *, ...);
+
+void
+assignment_associativity(int arg)
+{
+ int left, right;
+
+ /* FIXME */
+ /* expect+1: error: left operand of '=' must be lvalue [114] */
+ left = right = arg;
+
+ left = arg;
+}
Index: src/tests/usr.bin/xlint/lint1/expr_precedence.exp
diff -u src/tests/usr.bin/xlint/lint1/expr_precedence.exp:1.3 src/tests/usr.bin/xlint/lint1/expr_precedence.exp:1.4
--- src/tests/usr.bin/xlint/lint1/expr_precedence.exp:1.3 Thu Jul 15 17:48:10 2021
+++ src/tests/usr.bin/xlint/lint1/expr_precedence.exp Mon Jul 26 17:09:46 2021
@@ -2,3 +2,4 @@ expr_precedence.c(15): error: syntax err
expr_precedence.c(18): error: non-constant initializer [177]
expr_precedence.c(35): error: 'var' undefined [99]
expr_precedence.c(35): error: syntax error '=' [249]
+expr_precedence.c(47): error: left operand of '=' must be lvalue [114]
