p11.cpp
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// RUN: %clang_cc1 -fsyntax-only -verify %s
template <class T> T* f(int); // #1
template <class T, class U> T& f(U); // #2
void g() {
int *ip = f<int>(1); // calls #1
}
template<typename T>
struct identity {
typedef T type;
};
template <class T>
T* f2(int, typename identity<T>::type = 0);
template <class T, class U>
T& f2(U, typename identity<T>::type = 0);
void g2() {
int* ip = f2<int>(1);
}
template<class T, class U> struct A { };
template<class T, class U> inline int *f3( U, A<U,T>* p = 0 ); // #1 expected-note{{candidate function [with T = int, U = int]}}
template< class U> inline float *f3( U, A<U,U>* p = 0 ); // #2 expected-note{{candidate function [with U = int]}}
void g3() {
float *fp = f3<int>( 42, (A<int,int>*)0 ); // Ok, picks #2.
f3<int>( 42 ); // expected-error{{call to 'f3' is ambiguous}}
}
namespace PR9006 {
struct X {
template <class Get>
int &f(char const* name, Get fget, char const* docstr = 0);
template <class Get, class Set>
float &f(char const* name, Get fget, Set fset, char const* docstr = 0);
};
void test(X x) {
int &ir = x.f("blah", 0, "blah");
}
}