swap.pass.cpp (1813B)
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 // <filesystem> 13 14 // class path 15 16 // void swap(path& rhs) noexcept; 17 18 #include "filesystem_include.hpp" 19 #include <type_traits> 20 #include <cassert> 21 22 #include "test_macros.h" 23 #include "test_iterators.h" 24 #include "count_new.hpp" 25 #include "filesystem_test_helper.hpp" 26 27 28 struct SwapTestcase { 29 const char* value1; 30 const char* value2; 31 }; 32 33 #define LONG_STR1 "_THIS_IS_LONG_THIS_IS_LONG_THIS_IS_LONG_THIS_IS_LONG_THIS_IS_LONG_THIS_IS_LONG_THIS_IS_LONG" 34 #define LONG_STR2 "_THIS_IS_LONG2_THIS_IS_LONG2_THIS_IS_LONG2_THIS_IS_LONG2_THIS_IS_LONG2_THIS_IS_LONG2_THIS_IS_LONG2" 35 const SwapTestcase TestCases[] = 36 { 37 {"", ""} 38 , {"shortstr", LONG_STR1} 39 , {LONG_STR1, "shortstr"} 40 , {LONG_STR1, LONG_STR2} 41 }; 42 #undef LONG_STR1 43 #undef LONG_STR2 44 45 int main() 46 { 47 using namespace fs; 48 { 49 path p; 50 ASSERT_NOEXCEPT(p.swap(p)); 51 ASSERT_SAME_TYPE(void, decltype(p.swap(p))); 52 } 53 for (auto const & TC : TestCases) { 54 path p1(TC.value1); 55 path p2(TC.value2); 56 { 57 DisableAllocationGuard g; 58 p1.swap(p2); 59 } 60 assert(p1 == TC.value2); 61 assert(p2 == TC.value1); 62 { 63 DisableAllocationGuard g; 64 p1.swap(p2); 65 } 66 assert(p1 == TC.value1); 67 assert(p2 == TC.value2); 68 } 69 // self-swap 70 { 71 const char* Val = "aoeuaoeuaoeuaoeuaoeuaoeuaoeuaoeuaoeu"; 72 path p1(Val); 73 assert(p1 == Val); 74 { 75 DisableAllocationGuard g; 76 p1.swap(p1); 77 } 78 assert(p1 == Val); 79 } 80 }