53 lines
2.1 KiB
C
53 lines
2.1 KiB
C
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -verify %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -x c++ -verify %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -x c++ -std=c++11 -verify %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -x objective-c -verify %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -x objective-c++ -std=c++11 -verify %s
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#ifdef __cplusplus
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# define EXTERN_C extern "C"
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#else
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# define EXTERN_C extern
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#endif
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EXTERN_C int printf(const char *,...);
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EXTERN_C int scanf(const char *, ...);
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typedef enum { Constant = 0 } TestEnum;
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// Note that in C, the type of 'Constant' is 'int'. In C++ it is 'TestEnum'.
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// This is why we don't check for that in the expected output.
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void test(TestEnum input) {
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printf("%d", input); // no-warning
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printf("%d", Constant); // no-warning
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printf("%lld", input); // expected-warning-re{{format specifies type 'long long' but the argument has underlying type '{{(unsigned)?}} int'}}
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printf("%lld", Constant); // expected-warning{{format specifies type 'long long'}}
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}
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typedef enum { LongConstant = ~0UL } LongEnum;
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void testLong(LongEnum input) {
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printf("%u", input); // expected-warning{{format specifies type 'unsigned int' but the argument has underlying type}}
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printf("%u", LongConstant); // expected-warning{{format specifies type 'unsigned int'}}
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printf("%lu", input);
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printf("%lu", LongConstant);
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}
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#ifndef __cplusplus
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// GNU C allows forward declaring enums.
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extern enum forward_declared *fwd;
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void forward_enum() {
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printf("%u", fwd); // expected-warning{{format specifies type 'unsigned int' but the argument has type 'enum forward_declared *}}
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printf("%p", fwd);
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scanf("%c", fwd); // expected-warning{{format specifies type 'char *' but the argument has type 'enum forward_declared *}}
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scanf("%u", fwd);
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scanf("%lu", fwd); // expected-warning{{format specifies type 'unsigned long *' but the argument has type 'enum forward_declared *}}
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scanf("%p", fwd); // expected-warning{{format specifies type 'void **' but the argument has type 'enum forward_declared *}}
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}
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#endif
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