add c testcase for string literal diagnostic improvement.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64929 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/format-strings.c b/test/Sema/format-strings.c
index 707873f..024e06a 100644
--- a/test/Sema/format-strings.c
+++ b/test/Sema/format-strings.c
@@ -29,6 +29,9 @@
vsnprintf(buf,2,global_fmt,ap); // expected-warning {{format string is not a string literal}}
__builtin___vsnprintf_chk(buf,2,0,-1,s,ap); // no-warning
__builtin___vsnprintf_chk(buf,2,0,-1,global_fmt,ap); // expected-warning {{format string is not a string literal}}
+
+ printf("abc"
+ "%*d", (unsigned) 1, 1); // expected-warning {{field width should have type 'int'}}
}
void check_conditional_literal(const char* s, int i) {