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 // UNSUPPORTED: c++98, c++03 11 12 // <string> 13 14 // basic_string(basic_string&& str, const Allocator& alloc); 15 16 #include <string> 17 #include <cassert> 18 19 #include "test_macros.h" 20 #include "test_allocator.h" 21 #include "min_allocator.h" 22 23 24 template <class S> 25 void 26 test(S s0, const typename S::allocator_type& a) 27 { 28 S s1 = s0; 29 S s2(std::move(s0), a); 30 LIBCPP_ASSERT(s2.__invariants()); 31 LIBCPP_ASSERT(s0.__invariants()); 32 assert(s2 == s1); 33 assert(s2.capacity() >= s2.size()); 34 assert(s2.get_allocator() == a); 35 } 36 37 38 int main() 39 { 40 { 41 typedef test_allocator<char> A; 42 typedef std::basic_string<char, std::char_traits<char>, A> S; 43 #if TEST_STD_VER > 14 44 static_assert((noexcept(S{})), "" ); 45 #elif TEST_STD_VER >= 11 46 static_assert((noexcept(S()) == std::is_nothrow_move_constructible<A>::value), "" ); 47 #endif 48 test(S(), A(3)); 49 test(S("1"), A(5)); 50 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"), A(7)); 51 } 52 53 int alloc_count = test_alloc_base::alloc_count; 54 { 55 typedef test_allocator<char> A; 56 typedef std::basic_string<char, std::char_traits<char>, A> S; 57 #if TEST_STD_VER > 14 58 static_assert((noexcept(S{})), "" ); 59 #elif TEST_STD_VER >= 11 60 static_assert((noexcept(S()) == std::is_nothrow_move_constructible<A>::value), "" ); 61 #endif 62 S s1 ( "Twas brillig, and the slivy toves did gyre and gymbal in the wabe" ); 63 S s2 (std::move(s1), A(1)); 64 } 65 assert ( test_alloc_base::alloc_count == alloc_count ); 66 { 67 typedef min_allocator<char> A; 68 typedef std::basic_string<char, std::char_traits<char>, A> S; 69 #if TEST_STD_VER > 14 70 static_assert((noexcept(S{})), "" ); 71 #elif TEST_STD_VER >= 11 72 static_assert((noexcept(S()) == std::is_nothrow_move_constructible<A>::value), "" ); 73 #endif 74 test(S(), A()); 75 test(S("1"), A()); 76 test(S("1234567890123456789012345678901234567890123456789012345678901234567890"), A()); 77 } 78 } 79
