clang/test/CXX/temp/temp.fct.spec/temp.deduct/temp.deduct.call/basic.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 template<typename T> struct A { };
   4
   5 template<typename T> A<T> f0(T*);
   6
   7 void test_f0(int *ip, float const *cfp) {
   8   A<int> a0 = f0(ip);
   9   A<const float> a1 = f0(cfp);
  10 }
  11
  12 template<typename T> void f1(T*, int);
  13
  14 void test_f1(int *ip, float fv) {
  15   f1(ip, fv);
  16 }
  17
  18 template<typename T> void f2(T*, T*); // expected-note {{candidate template ignored: could not match 'T *' against 'ConvToIntPtr'}} \
  19 // expected-note{{candidate template ignored: deduced conflicting types for parameter 'T' ('int' vs. 'float')}}
  20
  21 struct ConvToIntPtr {
  22   operator int*() const;
  23 };
  24
  25 void test_f2(int *ip, float *fp) {
  26   f2(ip, ConvToIntPtr()); // expected-error{{no matching function}}
  27   f2(ip, ip); // okay
  28   f2(ip, fp); // expected-error{{no matching function}}
  29 }
  30
  31 namespace test3 {
  32   template<typename T>
  33   struct bar { };
  34
  35   template<typename T>
  36   struct foo {
  37     operator bar<T>();
  38   };
  39
  40   template<typename T>
  41   void func(bar<T>) { // expected-note {{candidate template ignored: could not match 'bar' against 'foo'}}
  42   }
  43
  44   void test() {
  45     func(foo<int>()); // expected-error {{no matching function}}
  46   }
  47 }