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authorJames Molloy <james.molloy@arm.com>2012-05-04 11:23:40 +0000
committerJames Molloy <james.molloy@arm.com>2012-05-04 11:23:40 +0000
commita30d8600b9b52922a92a90b30993564ba257537a (patch)
tree47156886647d4e482c33bd4461d1a2b7799473f3 /test/Sema/format-strings.c
parent392da48160bd92ceb486792780467cbfdb2d0e8c (diff)
Add a predefine __WINT_UNSIGNED__, similar to __WCHAR_UNSIGNED__, and test them both for ARM and X86.
Use this to fully fix Sema/format-strings.c for non-x86 platforms. Reviewed by Chandler on IRC. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156169 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Sema/format-strings.c')
-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