derek.holloway
7502bf64a4
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55 lines
2.2 KiB
C
55 lines
2.2 KiB
C
// RUN: %clang_cc1 %s -fsyntax-only -Wno-unused-value -Wbad-function-cast -ffixed-point -triple x86_64-unknown-unknown -verify
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void vf(void);
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int if1(void);
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char if2(void);
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long if3(void);
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float rf1(void);
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double rf2(void);
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_Complex double cf(void);
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enum e { E1 } ef(void);
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_Bool bf(void);
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char *pf1(void);
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int *pf2(void);
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_Fract ff1(void);
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void
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foo(void)
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{
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/* default, no cast, should always be ok */
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ff1();
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/* Casts to void types are always OK. */
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(void)vf();
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(void)if1();
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(void)cf();
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(const void)bf();
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(void)ff1();
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/* Casts to the same type or similar types are OK. */
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(int)if1();
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(long)if2();
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(char)if3();
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(float)rf1();
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(long double)rf2();
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(_Complex float)cf();
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(enum f { F1 })ef();
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(_Bool)bf();
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(void *)pf1();
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(char *)pf2();
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(_Fract) ff1();
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/* All following casts issue warning */
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(float)if1(); /* expected-warning {{cast from function call of type 'int' to non-matching type 'float'}} */
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(double)if2(); /* expected-warning {{cast from function call of type 'char' to non-matching type 'double'}} */
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(_Bool)if3(); /* expected-warning {{cast from function call of type 'long' to non-matching type '_Bool'}} */
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(int)rf1(); /* expected-warning {{cast from function call of type 'float' to non-matching type 'int'}} */
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(long)rf2(); /* expected-warning {{cast from function call of type 'double' to non-matching type 'long'}} */
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(double)cf(); /* expected-warning {{cast from function call of type '_Complex double' to non-matching type 'double'}} */
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(int)ef(); /* expected-warning {{cast from function call of type 'enum e' to non-matching type 'int'}} */
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(int)bf(); /* expected-warning {{cast from function call of type '_Bool' to non-matching type 'int'}} */
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(__SIZE_TYPE__)pf1(); /* expected-warning {{cast from function call of type 'char *' to non-matching type 'unsigned long'}} */
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(__PTRDIFF_TYPE__)pf2(); /* expected-warning {{cast from function call of type 'int *' to non-matching type 'long'}} */
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(_Fract) if1(); /* expected-warning{{cast from function call of type 'int' to non-matching type '_Fract'}} */
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(int)ff1(); /* expected-warning{{cast from function call of type '_Fract' to non-matching type 'int'}} */
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}
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