53 lines · c
1// RUN: %clang_cc1 -fsyntax-only -Wno-strict-prototypes -verify %s -fblocks2 3int (*FP)();4int (^IFP) ();5int (^II) (int);6int main(void) {7 int (*FPL) (int) = FP; // C doesn't consider this an error.8 9 // For Blocks, the ASTContext::typesAreBlockCompatible() makes sure this is an error.10 int (^PFR) (int) = IFP; // OK11 PFR = II; // OK12 13 int (^IFP) () = PFR; // OK14 15 16 const int (^CIC) () = IFP; // OK - initializing 'const int (^)()' with an expression of type 'int (^)()'}}17 18 const int (^CICC) () = CIC;19 20 21 int * const (^IPCC) () = 0;22 23 int * const (^IPCC1) () = IPCC;24 25 int * (^IPCC2) () = IPCC; // expected-error {{incompatible block pointer types initializing 'int *(^)()' with an expression of type 'int *const (^)()'}}26 27 int (^IPCC3) (const int) = PFR;28 29 int (^IPCC4) (int, char (^CArg) (double));30 31 int (^IPCC5) (int, char (^CArg) (double)) = IPCC4;32 33 int (^IPCC6) (int, char (^CArg) (float)) = IPCC4; // expected-error {{incompatible block pointer types initializing 'int (^)(int, char (^)(float))' with an expression of type 'int (^)(int, char (^)(double))'}}34 35 IPCC2 = 0;36 IPCC1 = 1; // expected-error {{invalid block pointer conversion assigning to 'int *const (^)()' from 'int'}}37 int (^x)() = 0;38 int (^y)() = 3; // expected-error {{invalid block pointer conversion initializing 'int (^)()' with an expression of type 'int'}}39 int a = 1;40 int (^z)() = a+4; // expected-error {{invalid block pointer conversion initializing 'int (^)()' with an expression of type 'int'}}41}42 43int blah(void) {44 int (^IFP) (float);45 char (^PCP)(double, double, char);46 47 IFP(1.0);48 IFP (1.0, 2.0); // expected-error {{too many arguments to block call}}49 50 char ch = PCP(1.0, 2.0, 'a');51 return PCP(1.0, 2.0); // expected-error {{too few arguments to block}}52}53