Let %S, %ls, %C match 16bit types in NSStrings.
As discussed at http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20120130/052200.html
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149325 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaObjC/format-strings-objc.m b/test/SemaObjC/format-strings-objc.m
index 5ab4d8b..2433000 100644
--- a/test/SemaObjC/format-strings-objc.m
+++ b/test/SemaObjC/format-strings-objc.m
@@ -115,3 +115,35 @@
void check_NSLocalizedString() {
[Foo fooWithFormat:NSLocalizedString(@"format"), @"arg"]; // no-warning
}
+
+typedef __WCHAR_TYPE__ wchar_t;
+
+
+// Test that %S, %C, %ls check for 16 bit types in ObjC strings, as described at
+// http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html#//apple_ref/doc/uid/TP40004265
+
+void test_percent_S() {
+ const unsigned short data[] = { 'a', 'b', 0 };
+ const unsigned short* ptr = data;
+ NSLog(@"%S", ptr); // no-warning
+
+ const wchar_t* wchar_ptr = L"ab";
+ NSLog(@"%S", wchar_ptr); // expected-warning{{format specifies type 'const unsigned short *' but the argument has type 'const wchar_t *'}}
+}
+
+void test_percent_ls() {
+ const unsigned short data[] = { 'a', 'b', 0 };
+ const unsigned short* ptr = data;
+ NSLog(@"%ls", ptr); // no-warning
+
+ const wchar_t* wchar_ptr = L"ab";
+ NSLog(@"%ls", wchar_ptr); // expected-warning{{format specifies type 'const unsigned short *' but the argument has type 'const wchar_t *'}}
+}
+
+void test_percent_C() {
+ const unsigned short data = 'a';
+ NSLog(@"%C", data); // no-warning
+
+ const wchar_t wchar_data = L'a';
+ NSLog(@"%C", wchar_data); // expected-warning{{format specifies type 'unsigned short' but the argument has type 'wchar_t'}}
+}