1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 3 int var __attribute__((overloadable)); // expected-error{{'overloadable' attribute can only be applied to a function}} 4 5 int *f(int) __attribute__((overloadable)); // expected-note 2{{previous overload of function is here}} 6 float *f(float); // expected-error{{overloaded function 'f' must have the 'overloadable' attribute}} 7 int *f(int); // expected-error{{redeclaration of 'f' must have the 'overloadable' attribute}} \ 8 // expected-note{{previous declaration is here}} 9 double *f(double) __attribute__((overloadable)); // okay, new 10 11 void test_f(int iv, float fv, double dv) { 12 int *ip = f(iv); 13 float *fp = f(fv); 14 double *dp = f(dv); 15 } 16 17 int *accept_funcptr(int (*)()) __attribute__((overloadable)); // \ 18 // expected-note{{candidate function}} 19 float *accept_funcptr(int (*)(int, double)) __attribute__((overloadable)); // \ 20 // expected-note{{candidate function}} 21 22 void test_funcptr(int (*f1)(int, double), 23 int (*f2)(int, float)) { 24 float *fp = accept_funcptr(f1); 25 accept_funcptr(f2); // expected-error{{no matching function for call to 'accept_funcptr'; candidates are:}} 26 } 27 28 struct X { int x; float y; }; 29 struct Y { int x; float y; }; 30 int* accept_struct(struct X x) __attribute__((__overloadable__)); 31 float* accept_struct(struct Y y) __attribute__((overloadable)); 32 33 void test_struct(struct X x, struct Y y) { 34 int *ip = accept_struct(x); 35 float *fp = accept_struct(y); 36 } 37 38 double *f(int) __attribute__((overloadable)); // expected-error{{conflicting types for 'f'}} 39 40 double promote(float) __attribute__((__overloadable__)); // expected-note {{candidate}} 41 double promote(double) __attribute__((__overloadable__)); // expected-note {{candidate}} 42 long double promote(long double) __attribute__((__overloadable__)); // expected-note {{candidate}} 43 44 void promote(...) __attribute__((__overloadable__, __unavailable__)); // \ 45 // expected-note{{candidate function}} 46 47 void test_promote(short* sp) { 48 promote(1.0); 49 promote(sp); // expected-error{{call to unavailable function 'promote'}} 50 } 51 52 // PR6600 53 typedef double Double; 54 typedef Double DoubleVec __attribute__((vector_size(16))); 55 typedef int Int; 56 typedef Int IntVec __attribute__((vector_size(16))); 57 double magnitude(DoubleVec) __attribute__((__overloadable__)); 58 double magnitude(IntVec) __attribute__((__overloadable__)); 59 double test_p6600(DoubleVec d) { 60 return magnitude(d) * magnitude(d); 61 } 62 63 // PR7738 64 extern int __attribute__((overloadable)) f0(); // expected-error{{'overloadable' function 'f0' must have a prototype}} 65 typedef int f1_type(); 66 f1_type __attribute__((overloadable)) f1; // expected-error{{'overloadable' function 'f1' must have a prototype}} 67 68 void test() { 69 f0(); 70 f1(); 71 } 72
