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// RUN: %clang_cc1 -fsyntax-only -verify -pedantic -std=c++11 %s
extern "C" {
extern int scanf(const char *restrict, ...);
extern int printf(const char *restrict, ...);
}
void f(char **sp, float *fp) {
scanf("%as", sp); // expected-warning{{format specifies type 'float *' but the argument has type 'char **'}}
printf("%a", 1.0);
scanf("%afoobar", fp);
printf(nullptr);
printf(*sp); // expected-warning {{not a string literal}}
// PR13099
printf(
R"foobar(%)foobar"
R"bazquux(d)bazquux" // expected-warning {{more '%' conversions than data arguments}}
R"xyzzy()xyzzy");
printf(u8"this is %d test", 0); // ok
printf(u8R"foo(
\u1234\U0010fffe
%d)foo" // expected-warning {{more '%' conversions than data arguments}}
);
printf("init list: %d", { 0 }); // expected-error {{cannot pass initializer list to variadic function; expected type from format string was 'int'}}
printf("void: %d", f(sp, fp)); // expected-error {{cannot pass expression of type 'void' to variadic function; expected type from format string was 'int'}}
printf(0, { 0 }); // expected-error {{cannot pass initializer list to variadic function}}
}
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