iterator_db.pass.cpp (1630B)
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 // UNSUPPORTED: libcpp-no-exceptions 12 13 // MODULES_DEFINES: _LIBCPP_DEBUG_USE_EXCEPTIONS 14 // MODULES_DEFINES: _LIBCPP_DEBUG=0 15 16 // <filesystem> 17 18 // class path 19 20 #define _LIBCPP_DEBUG 0 21 #define _LIBCPP_DEBUG_USE_EXCEPTIONS 22 #include "filesystem_include.hpp" 23 #include <iterator> 24 #include <type_traits> 25 #include <cassert> 26 27 #include "test_macros.h" 28 #include "filesystem_test_helper.hpp" 29 30 int main() { 31 using namespace fs; 32 using ExType = std::__libcpp_debug_exception; 33 // Test incrementing/decrementing a singular iterator 34 { 35 path::iterator singular; 36 try { 37 ++singular; 38 assert(false); 39 } catch (ExType const&) {} 40 try { 41 --singular; 42 assert(false); 43 } catch (ExType const&) {} 44 } 45 // Test decrementing the begin iterator 46 { 47 path p("foo/bar"); 48 auto it = p.begin(); 49 try { 50 --it; 51 assert(false); 52 } catch (ExType const&) {} 53 ++it; 54 ++it; 55 try { 56 ++it; 57 assert(false); 58 } catch (ExType const&) {} 59 } 60 // Test incrementing the end iterator 61 { 62 path p("foo/bar"); 63 auto it = p.end(); 64 try { 65 ++it; 66 assert(false); 67 } catch (ExType const&) {} 68 --it; 69 --it; 70 try { 71 --it; 72 assert(false); 73 } catch (ExType const&) {} 74 } 75 }