libcxx

libcxx mirror with random patches
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mem_fun1.pass.cpp (803B)

      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 // REQUIRES: c++98 || c++03 || c++11 || c++14
     12 
     13 // template<Returnable S, ClassType T, CopyConstructible A>
     14 //   mem_fun1_t<S,T,A>
     15 //   mem_fun(S (T::*f)(A));
     16 
     17 #include <functional>
     18 #include <cassert>
     19 
     20 struct A
     21 {
     22     char a1() {return 5;}
     23     short a2(int i) {return short(i+1);}
     24     int a3() const {return 1;}
     25     double a4(unsigned i) const {return i-1;}
     26 };
     27 
     28 int main()
     29 {
     30     A a;
     31     assert(std::mem_fun(&A::a2)(&a, 5) == 6);
     32 }