================
@@ -0,0 +1,103 @@
+// RUN: %clang_cc1 -Wchar-subscripts -fsyntax-only -verify %s
+
+void t1(void) {
+ int array[1] = { 0 };
+ char subscript = 0;
+ int val = array[subscript]; // expected-warning{{array subscript is of type
'char'}}
+}
+
+void t2(void) {
+ int array[1] = { 0 };
+ char subscript = 0;
+ int val = subscript[array]; // expected-warning{{array subscript is of type
'char'}}
+}
+
+void t3(void) {
+ int *array = 0;
+ char subscript = 0;
+ int val = array[subscript]; // expected-warning{{array subscript is of type
'char'}}
+}
+
+void t4(void) {
+ int *array = 0;
+ char subscript = 0;
+ int val = subscript[array]; // expected-warning{{array subscript is of type
'char'}}
+}
+
+char returnsChar(void);
+void t5(void) {
+ int *array = 0;
+ int val = array[returnsChar()]; // expected-warning{{array subscript is of
type 'char'}}
+}
+
+void t6(void) {
+ int array[1] = { 0 };
+ signed char subscript = 0;
+ int val = array[subscript]; // no warning for explicit signed char
----------------
shafik wrote:
Why do we exclude the `signed char` case?
https://github.com/llvm/llvm-project/pull/69061
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