| // RUN: %clang_cc1 -fsyntax-only -verify %s -fblocks |
| |
| int (*FP)(); |
| int (^IFP) (); |
| int (^II) (int); |
| int main() { |
| int (*FPL) (int) = FP; // C doesn't consider this an error. |
| |
| // For Blocks, the ASTContext::typesAreBlockCompatible() makes sure this is an error. |
| int (^PFR) (int) = IFP; // OK |
| PFR = II; // OK |
| |
| int (^IFP) () = PFR; // OK |
| |
| |
| const int (^CIC) () = IFP; // OK - initializing 'const int (^)()' with an expression of type 'int (^)()'}} |
| |
| const int (^CICC) () = CIC; |
| |
| |
| int * const (^IPCC) () = 0; |
| |
| int * const (^IPCC1) () = IPCC; |
| |
| int * (^IPCC2) () = IPCC; // expected-error {{incompatible block pointer types initializing 'int *(^)()' with an expression of type 'int *const (^)()'}} |
| |
| int (^IPCC3) (const int) = PFR; |
| |
| int (^IPCC4) (int, char (^CArg) (double)); |
| |
| int (^IPCC5) (int, char (^CArg) (double)) = IPCC4; |
| |
| 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))'}} |
| |
| IPCC2 = 0; |
| IPCC1 = 1; // expected-error {{invalid block pointer conversion assigning to 'int *const (^)()' from 'int'}} |
| int (^x)() = 0; |
| int (^y)() = 3; // expected-error {{invalid block pointer conversion initializing 'int (^)()' with an expression of type 'int'}} |
| int a = 1; |
| int (^z)() = a+4; // expected-error {{invalid block pointer conversion initializing 'int (^)()' with an expression of type 'int'}} |
| } |
| |
| int blah() { |
| int (^IFP) (float); |
| char (^PCP)(double, double, char); |
| |
| IFP(1.0); |
| IFP (1.0, 2.0); // expected-error {{too many arguments to block call}} |
| |
| char ch = PCP(1.0, 2.0, 'a'); |
| return PCP(1.0, 2.0); // expected-error {{too few arguments to block}} |
| } |