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 // class function<R(ArgTypes...)> 13 14 // R operator()(ArgTypes... args) const 15 16 #include <functional> 17 #include <new> 18 #include <cstdlib> 19 #include <cassert> 20 21 // 0 args, return void 22 23 int count = 0; 24 25 void f_void_0() 26 { 27 ++count; 28 } 29 30 struct A_void_0 31 { 32 void operator()() {++count;} 33 }; 34 35 void 36 test_void_0() 37 { 38 int save_count = count; 39 // function 40 { 41 std::function<void ()> r1(f_void_0); 42 r1(); 43 assert(count == save_count+1); 44 save_count = count; 45 } 46 // function pointer 47 { 48 void (*fp)() = f_void_0; 49 std::function<void ()> r1(fp); 50 r1(); 51 assert(count == save_count+1); 52 save_count = count; 53 } 54 // functor 55 { 56 A_void_0 a0; 57 std::function<void ()> r1(a0); 58 r1(); 59 assert(count == save_count+1); 60 save_count = count; 61 } 62 } 63 64 int main() 65 { 66 test_void_0(); 67 } 68
