| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // Can't test the system lib because this test enables debug mode |
| // MODULES_DEFINES: _LIBCPP_DEBUG=1 |
| // UNSUPPORTED: with_system_cxx_lib |
| // UNSUPPORTED: c++98, c++03 |
| // UNSUPPORTED: windows |
| // UNSUPPORTED: with_system_cxx_lib |
| |
| // <list> |
| |
| // Call prev(forward_iterator, -1) |
| |
| #define _LIBCPP_DEBUG 0 |
| |
| #include <iterator> |
| #include "test_macros.h" |
| #include "debug_mode_helper.h" |
| |
| #include "test_iterators.h" |
| |
| int main(int, char**) |
| { |
| int a[] = {1, 2, 3}; |
| |
| bidirectional_iterator<int *> bidi(a+1); |
| std::prev(bidi, -1); // should work fine |
| std::prev(bidi, 0); // should work fine |
| std::prev(bidi, 1); // should work fine |
| |
| forward_iterator<int *> it(a+1); |
| std::prev(it, -1); // should work fine |
| std::prev(it, 0); // should work fine |
| EXPECT_DEATH( std::prev(it, 1) ); // can't go backwards on a FwdIter |
| |
| return 0; |
| } |