xref: /llvm-project/clang/test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/basic.cpp (revision e750491ff33d5ab1fbfae5d530a6769074154730)

// RUN: %clang_cc1 -fsyntax-only -verify %s

template<typename T> struct A { };

template<typename T> A<T> f0(T*);

void test_f0(int *ip, float const *cfp) {
  A<int> a0 = f0(ip);
  A<const float> a1 = f0(cfp);
}

template<typename T> void f1(T*, int);

void test_f1(int *ip, float fv) {
  f1(ip, fv);
}

template<typename T> void f2(T*, T*); // expected-note {{candidate template ignored: could not match 'T *' against 'ConvToIntPtr'}} \
// expected-note{{candidate template ignored: deduced conflicting types for parameter 'T' ('int' vs. 'float')}}

struct ConvToIntPtr {
  operator int*() const;
};

void test_f2(int *ip, float *fp) {
  f2(ip, ConvToIntPtr()); // expected-error{{no matching function}}
  f2(ip, ip); // okay
  f2(ip, fp); // expected-error{{no matching function}}
}

namespace test3 {
  template<typename T>
  struct bar { };

  template<typename T>
  struct foo {
    operator bar<T>();
  };

  template<typename T>
  void func(bar<T>) { // expected-note {{candidate template ignored: could not match 'bar' against 'foo'}}
  }

  void test() {
    func(foo<int>()); // expected-error {{no matching function}}
  }
}