| 1 | // RUN: %clang_cc1 -fsyntax-only -verify -pedantic -std=c++11 %s |
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| 2 | |
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| 3 | extern "C" { |
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| 4 | extern int scanf(const char *restrict, ...); |
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| 5 | extern int printf(const char *restrict, ...); |
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| 6 | } |
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| 7 | |
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| 8 | void f(char **sp, float *fp) { |
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| 9 | scanf("%as", sp); // expected-warning{{format specifies type 'float *' but the argument has type 'char **'}} |
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| 10 | |
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| 11 | printf("%p", sp); // expected-warning{{format specifies type 'void *' but the argument has type 'char **'}} |
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| 12 | scanf("%p", sp); // expected-warning{{format specifies type 'void **' but the argument has type 'char **'}} |
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| 13 | |
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| 14 | printf("%a", 1.0); |
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| 15 | scanf("%afoobar", fp); |
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| 16 | printf(nullptr); |
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| 17 | printf(*sp); // expected-warning {{not a string literal}} |
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| 18 | // expected-note@-1{{treat the string as an argument to avoid this}} |
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| 19 | |
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| 20 | // PR13099 |
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| 21 | printf( |
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| 22 | R"foobar(%)foobar" |
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| 23 | R"bazquux(d)bazquux" // expected-warning {{more '%' conversions than data arguments}} |
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| 24 | R"xyzzy()xyzzy"); |
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| 25 | |
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| 26 | printf(u8"this is %d test", 0); // ok |
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| 27 | printf(u8R"foo( |
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| 28 | \u1234\U0010fffe |
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| 29 | %d)foo" // expected-warning {{more '%' conversions than data arguments}} |
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| 30 | ); |
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| 31 | |
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| 32 | printf("init list: %d", { 0 }); // expected-error {{cannot pass initializer list to variadic function; expected type from format string was 'int'}} |
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| 33 | printf("void: %d", f(sp, fp)); // expected-error {{cannot pass expression of type 'void' to variadic function; expected type from format string was 'int'}} |
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| 34 | printf(0, { 0 }); // expected-error {{cannot pass initializer list to variadic function}} |
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| 35 | } |
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| 36 | |
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