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      1 //===----------------------------------------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is dual licensed under the MIT and the University of Illinois Open
      6 // Source Licenses. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 // <functional>
     11 
     12 // template<CopyConstructible Fn, CopyConstructible... Types>
     13 //   unspecified bind(Fn, Types...);
     14 // template<Returnable R, CopyConstructible Fn, CopyConstructible... Types>
     15 //   unspecified bind(Fn, Types...);
     16 
     17 #include <functional>
     18 #include <cassert>
     19 
     20 template <class R, class F>
     21 void
     22 test(F f, R expected)
     23 {
     24     assert(f() == expected);
     25 }
     26 
     27 template <class R, class F>
     28 void
     29 test_const(const F& f, R expected)
     30 {
     31     assert(f() == expected);
     32 }
     33 
     34 int f() {return 1;}
     35 
     36 struct A_int_0
     37 {
     38     int operator()() {return 4;}
     39     int operator()() const {return 5;}
     40 };
     41 
     42 int main()
     43 {
     44     test(std::bind(f), 1);
     45     test(std::bind(&f), 1);
     46     test(std::bind(A_int_0()), 4);
     47     test_const(std::bind(A_int_0()), 5);
     48 
     49     test(std::bind<int>(f), 1);
     50     test(std::bind<int>(&f), 1);
     51     test(std::bind<int>(A_int_0()), 4);
     52     test_const(std::bind<int>(A_int_0()), 5);
     53 }
     54