blob: 35d54491c7d9c5f392c9eead59c3d84e5da3e38d [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03
// UNSUPPORTED: windows
// ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DEBUG=0
// UNSUPPORTED: libcxx-no-debug-mode
// <list>
// Call prev(forward_iterator, -1)
#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;
}