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// RUN: %clang_cc1 -fsyntax-only -Wno-strict-prototypes -verify %s -fblocks
int (*FP)();
int (^IFP) ();
int (^II) (int);
int main(void) {
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(void) {
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}}
}
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