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-rw-r--r--test/Sema/format-strings.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/test/Sema/format-strings.c b/test/Sema/format-strings.c
index d1dca7e2fb..5d8e4cbb87 100644
--- a/test/Sema/format-strings.c
+++ b/test/Sema/format-strings.c
@@ -339,7 +339,12 @@ void pr7981(wint_t c, wchar_t c2) {
printf("%lc", 1.0); // expected-warning{{the argument has type 'double'}}
printf("%lc", (char) 1); // no-warning
printf("%lc", &c); // expected-warning{{the argument has type 'wint_t *'}}
+ // If wint_t and wchar_t are the same width and wint_t is signed where
+ // wchar_t is unsigned, an implicit conversion isn't possible.
+#if defined(__WINT_UNSIGNED__) || !defined(__WCHAR_UNSIGNED__) || \
+ __WINT_WIDTH__ > __WCHAR_WIDTH__
printf("%lc", c2); // no-warning
+#endif
}
// <rdar://problem/8269537> -Wformat-security says NULL is not a string literal