new file mode 100644
@@ -0,0 +1,26 @@
+/* Test -Wstring-plus-int. */
+
+/* { dg-do compile } */
+/* { dg-options "-Wstring-plus-int" } */
+
+extern int getchar();
+extern int offset;
+
+int main(void)
+{
+ const char *a = "aa" + 'a'; /* { dg-warning "does not append" } */
+ const char *b = "aa" + getchar(); /* { dg-warning "does not append" } */
+ const char *c = "aa" + 4; /* { dg-warning "does not append" } */
+ const char *d = "aa" + -1; /* { dg-warning "does not append" } */
+ const char *e = 'x' + "aa"; /* { dg-warning "does not append" } */
+ const char *f = "aa" + offset; /* { dg-warning "does not append" } */
+
+ /* This is legal (at least Clang think it is). */
+ const char *g = "aa" + 3; /* { dg-bogus "does not append" } */
+
+ /* Although they are strange, still shouldn't
+ be warned by this warning. Maybe -Warray-bounds. */
+ const char (*h)[3] = &"aa" + 1; /* { dg-bogus "does not append" } */
+ char i = "aa"[4]; /* { dg-bogus "does not append" } */
+ const char *j = "aa" - 1; /* { dg-bogus "does not append" } */
+}
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+/* Test -Wstring-plus-int for C++ wide char types. */
+
+/* { dg-do compile } */
+/* { dg-options "-Wstring-plus-int" } */
+
+int main(void)
+{
+ const wchar_t *a = L"aa" + L'a'; /* { dg-warning "does not append" } */
+}
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+/* Test -Wstring-plus-int for C++ 2011 unicode char types. */
+
+/* { dg-do compile } */
+/* { dg-options "-std=c++11 -Wstring-plus-int" } */
+
+int main(void)
+{
+ const char16_t *a = u"aa" + u'a'; /* { dg-warning "does not append" } */
+ const char32_t *b = U"aa" + U'a'; /* { dg-warning "does not append" } */
+}
--
2.7.1