derek.holloway
7502bf64a4
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38 lines
1.6 KiB
C++
38 lines
1.6 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify -pedantic -std=c++11 %s
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extern "C" {
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extern int scanf(const char *restrict, ...);
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extern int printf(const char *restrict, ...);
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}
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void f(char **sp, float *fp) {
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scanf("%as", sp); // expected-warning{{format specifies type 'float *' but the argument has type 'char **'}}
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printf("%p", sp); // expected-warning{{format specifies type 'void *' but the argument has type 'char **'}}
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scanf("%p", sp); // expected-warning{{format specifies type 'void **' but the argument has type 'char **'}}
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printf("%a", 1.0);
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scanf("%afoobar", fp);
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printf(nullptr);
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// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
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printf(*sp); // expected-warning {{not a string literal}}
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// expected-note@-1{{treat the string as an argument to avoid this}}
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// PR13099
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printf(
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R"foobar(%)foobar"
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R"bazquux(d)bazquux" // expected-warning {{more '%' conversions than data arguments}}
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R"xyzzy()xyzzy");
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printf(u8"this is %d test", 0); // ok
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printf(u8R"foo(
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\u1234\U0010fffe
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%d)foo" // expected-warning {{more '%' conversions than data arguments}}
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);
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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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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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printf(0, { 0 }); // expected-error {{cannot pass initializer list to variadic function}}
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// expected-warning@-1{{null passed to a callee that requires a non-null argument}}
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}
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