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 // type_traits 11 12 // alignment_of 13 14 #include <type_traits> 15 #include <cstdint> 16 17 #include "test_macros.h" 18 19 template <class T, unsigned A> 20 void test_alignment_of() 21 { 22 static_assert( std::alignment_of<T>::value == A, ""); 23 static_assert( std::alignment_of<const T>::value == A, ""); 24 static_assert( std::alignment_of<volatile T>::value == A, ""); 25 static_assert( std::alignment_of<const volatile T>::value == A, ""); 26 #if TEST_STD_VER > 14 27 static_assert( std::alignment_of_v<T> == A, ""); 28 static_assert( std::alignment_of_v<const T> == A, ""); 29 static_assert( std::alignment_of_v<volatile T> == A, ""); 30 static_assert( std::alignment_of_v<const volatile T> == A, ""); 31 #endif 32 } 33 34 class Class 35 { 36 public: 37 ~Class(); 38 }; 39 40 int main() 41 { 42 test_alignment_of<int&, 4>(); 43 test_alignment_of<Class, 1>(); 44 test_alignment_of<int*, sizeof(intptr_t)>(); 45 test_alignment_of<const int*, sizeof(intptr_t)>(); 46 test_alignment_of<char[3], 1>(); 47 test_alignment_of<int, 4>(); 48 test_alignment_of<double, 8>(); 49 #if (defined(__ppc__) && !defined(__ppc64__)) 50 test_alignment_of<bool, 4>(); // 32-bit PPC has four byte bool 51 #else 52 test_alignment_of<bool, 1>(); 53 #endif 54 test_alignment_of<unsigned, 4>(); 55 } 56
