size.pass.cpp (1577B)
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 // <array> 11 12 // template <class T, size_t N> constexpr size_type array<T,N>::size(); 13 14 #include <array> 15 #include <cassert> 16 17 #include "test_macros.h" 18 19 // std::array is explicitly allowed to be initialized with A a = { init-list };. 20 // Disable the missing braces warning for this reason. 21 #include "disable_missing_braces_warning.h" 22 23 int main() 24 { 25 { 26 typedef double T; 27 typedef std::array<T, 3> C; 28 C c = {1, 2, 3.5}; 29 assert(c.size() == 3); 30 assert(c.max_size() == 3); 31 assert(!c.empty()); 32 } 33 { 34 typedef double T; 35 typedef std::array<T, 0> C; 36 C c = {}; 37 assert(c.size() == 0); 38 assert(c.max_size() == 0); 39 assert(c.empty()); 40 } 41 #if TEST_STD_VER >= 11 42 { 43 typedef double T; 44 typedef std::array<T, 3> C; 45 constexpr C c = {1, 2, 3.5}; 46 static_assert(c.size() == 3, ""); 47 static_assert(c.max_size() == 3, ""); 48 static_assert(!c.empty(), ""); 49 } 50 { 51 typedef double T; 52 typedef std::array<T, 0> C; 53 constexpr C c = {}; 54 static_assert(c.size() == 0, ""); 55 static_assert(c.max_size() == 0, ""); 56 static_assert(c.empty(), ""); 57 } 58 #endif 59 }