1// RUN: %clang_cc1 -fsyntax-only -verify -pedantic -std=c++11 %s
2
3extern "C" {
4extern int scanf(const char *restrict, ...);
5extern int printf(const char *restrict, ...);
6}
7
8void f(char **sp, float *fp) {
9  scanf("%as", sp); // expected-warning{{format specifies type 'float *' but the argument has type 'char **'}}
10
11  printf("%a", 1.0);
12  scanf("%afoobar", fp);
13  printf(nullptr);
14  printf(*sp); // expected-warning {{not a string literal}}
15
16  // PR13099
17  printf(
18    R"foobar(%)foobar"
19    R"bazquux(d)bazquux" // expected-warning {{more '%' conversions than data arguments}}
20    R"xyzzy()xyzzy");
21
22  printf(u8"this is %d test", 0); // ok
23  printf(u8R"foo(
24      \u1234\U0010fffe
25      %d)foo" // expected-warning {{more '%' conversions than data arguments}}
26  );
27
28  printf("init list: %d", { 0 }); // expected-error {{cannot pass initializer list to variadic function; expected type from format string was 'int'}}
29  printf("void: %d", f(sp, fp)); // expected-error {{cannot pass expression of type 'void' to variadic function; expected type from format string was 'int'}}
30  printf(0, { 0 }); // expected-error {{cannot pass initializer list to variadic function}}
31}
32