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 // logical_not 13 14 #include <functional> 15 #include <type_traits> 16 #include <cassert> 17 18 int main() 19 { 20 typedef std::logical_not<int> F; 21 const F f = F(); 22 static_assert((std::is_base_of<std::unary_function<int, bool>, F>::value), ""); 23 assert(!f(36)); 24 assert(f(0)); 25 #if _LIBCPP_STD_VER > 11 26 typedef std::logical_not<> F2; 27 const F2 f2 = F2(); 28 assert(!f2(36)); 29 assert( f2(0)); 30 assert(!f2(36L)); 31 assert( f2(0L)); 32 33 constexpr bool foo = std::logical_not<int> () (36); 34 static_assert ( !foo, "" ); 35 36 constexpr bool bar = std::logical_not<> () (36); 37 static_assert ( !bar, "" ); 38 #endif 39 } 40
