55 lines · c
1// RUN: %clang_cc1 %s -fsyntax-only -Wno-unused-value -Wbad-function-cast -ffixed-point -triple x86_64-unknown-unknown -verify2 3void vf(void);4int if1(void);5char if2(void);6long if3(void);7float rf1(void);8double rf2(void);9_Complex double cf(void);10enum e { E1 } ef(void);11_Bool bf(void);12char *pf1(void);13int *pf2(void);14_Fract ff1(void);15 16void17foo(void)18{19 20 /* default, no cast, should always be ok */21 ff1();22 /* Casts to void types are always OK. */23 (void)vf();24 (void)if1();25 (void)cf();26 (const void)bf();27 (void)ff1();28 /* Casts to the same type or similar types are OK. */29 (int)if1();30 (long)if2();31 (char)if3();32 (float)rf1();33 (long double)rf2();34 (_Complex float)cf();35 (enum f { F1 })ef();36 (_Bool)bf();37 (void *)pf1();38 (char *)pf2();39 (_Fract) ff1();40 /* All following casts issue warning */41 (float)if1(); /* expected-warning {{cast from function call of type 'int' to non-matching type 'float'}} */42 (double)if2(); /* expected-warning {{cast from function call of type 'char' to non-matching type 'double'}} */43 (_Bool)if3(); /* expected-warning {{cast from function call of type 'long' to non-matching type '_Bool'}} */44 (int)rf1(); /* expected-warning {{cast from function call of type 'float' to non-matching type 'int'}} */45 (long)rf2(); /* expected-warning {{cast from function call of type 'double' to non-matching type 'long'}} */46 (double)cf(); /* expected-warning {{cast from function call of type '_Complex double' to non-matching type 'double'}} */47 (int)ef(); /* expected-warning {{cast from function call of type 'enum e' to non-matching type 'int'}} */48 (int)bf(); /* expected-warning {{cast from function call of type '_Bool' to non-matching type 'int'}} */49 (__SIZE_TYPE__)pf1(); /* expected-warning {{cast from function call of type 'char *' to non-matching type 'unsigned long'}} */50 (__PTRDIFF_TYPE__)pf2(); /* expected-warning {{cast from function call of type 'int *' to non-matching type 'long'}} */51 (_Fract) if1(); /* expected-warning{{cast from function call of type 'int' to non-matching type '_Fract'}} */52 (int)ff1(); /* expected-warning{{cast from function call of type '_Fract' to non-matching type 'int'}} */53}54 55