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Add missing test for the "overloadable" attribute 

llvm-svn: 64396
This commit is contained in:
Douglas Gregor 2009-02-12 19:25:19 +00:00
parent 344e74a986
commit 41e3fc1ff5
1 changed files with 37 additions and 0 deletions
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37
clang/test/Sema/overloadable.c Normal file
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// RUN: clang -fsyntax-only -verify %s
int var __attribute__((overloadable)); // expected-error{{'overloadable' attribute can only be applied to a function}}
int *f(int) __attribute__((overloadable)); // expected-note{{previous overload of function is here}}
float *f(float); // expected-error{{overloaded function 'f' must have the 'overloadable' attribute}}
int *f(int); // expected-note{{previous declaration is here}}
double *f(double) __attribute__((overloadable)); // okay, new
void test_f(int iv, float fv, double dv) {
int *ip = f(iv);
float *fp = f(fv);
double *dp = f(dv);
}
int *accept_funcptr(int (*)()) __attribute__((overloadable)); // \
// expected-note{{candidate function}}
float *accept_funcptr(int (*)(int, double)) __attribute__((overloadable)); // \
// expected-note{{candidate function}}
void test_funcptr(int (*f1)(int, double),
int (*f2)(int, float)) {
float *fp = accept_funcptr(f1);
accept_funcptr(f2); // expected-error{{no matching function for call to 'accept_funcptr'; candidates are:}}
}
struct X { int x; float y; };
struct Y { int x; float y; };
int* accept_struct(struct X x) __attribute__((overloadable));
float* accept_struct(struct Y y) __attribute__((overloadable));
void test_struct(struct X x, struct Y y) {
int *ip = accept_struct(x);
float *fp = accept_struct(y);
}
double *f(int) __attribute__((overloadable)); // expected-error{{conflicting types for 'f'}}