clang/test/CXX/temp/temp.fct.spec/temp.arg.explicit/p3.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++98 %s
   3 // RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
   4
   5 template<class X, class Y, class Z> X f(Y,Z); // expected-note {{candidate template ignored: couldn't infer template argument 'X'}}
   6
   7 void g() {
   8   f<int,char*,double>("aa",3.0);
   9 #if __cplusplus <= 199711L // C++03 or earlier modes
  10   // expected-warning@-2{{conversion from string literal to 'char *' is deprecated}}
  11 #else
  12   // expected-warning@-4{{ISO C++11 does not allow conversion from string literal to 'char *'}}
  13 #endif
  14
  15   f<int,char*>("aa",3.0); // Z is deduced to be double
  16 #if __cplusplus <= 199711L
  17   // expected-warning@-2{{conversion from string literal to 'char *' is deprecated}}
  18 #else
  19   // expected-warning@-4{{ISO C++11 does not allow conversion from string literal to 'char *'}}
  20 #endif
  21
  22   f<int>("aa",3.0);       // Y is deduced to be char*, and
  23                           // Z is deduced to be double
  24   f("aa",3.0); // expected-error{{no matching}}
  25 }
  26
  27 // PR5910
  28 namespace PR5910 {
  29   template <typename T>
  30   void Func() {}
  31
  32   template <typename R>
  33   void Foo(R (*fp)());
  34
  35   void Test() {
  36     Foo(Func<int>);
  37   }
  38 }
  39
  40 // PR5949
  41 namespace PR5949 {
  42   struct Bar;
  43
  44   template <class Container>
  45   void quuz(const Container &cont) {
  46   }
  47
  48   template<typename T>
  49   int Foo(Bar *b, void (*Baz)(const T &t), T * = 0) {
  50     return 0;
  51   }
  52
  53   template<typename T>
  54   int Quux(Bar *b, T * = 0)
  55   {
  56     return Foo<T>(b, quuz);
  57   }
  58 }
  59
  60 // PR7641
  61 namespace PR7641 {
  62   namespace N2
  63   {
  64     template<class>
  65     int f0(int);
  66   }
  67   namespace N
  68   {
  69     using N2::f0;
  70   }
  71
  72   template<class R,class B1>
  73   int
  74   f1(R(a)(B1));
  75
  76   void f2()
  77   { f1(N::f0<int>); }
  78 }