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//===- llvm/unittest/ADT/ReverseIterationTest.cpp ------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// ReverseIteration unit tests.
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "llvm/ADT/SmallPtrSet.h"
#if LLVM_ENABLE_ABI_BREAKING_CHECKS
using namespace llvm;
TEST(ReverseIterationTest, SmallPtrSetTest) {
SmallPtrSet<void*, 4> Set;
void *Ptrs[] = { (void*)0x1, (void*)0x2, (void*)0x3, (void*)0x4 };
void *ReversePtrs[] = { (void*)0x4, (void*)0x3, (void*)0x2, (void*)0x1 };
for (auto *Ptr: Ptrs)
Set.insert(Ptr);
// Check forward iteration.
ReverseIterate<bool>::value = false;
for (const auto &Tuple : zip(Set, Ptrs))
ASSERT_EQ(std::get<0>(Tuple), std::get<1>(Tuple));
// Check reverse iteration.
ReverseIterate<bool>::value = true;
for (const auto &Tuple : zip(Set, ReversePtrs))
ASSERT_EQ(std::get<0>(Tuple), std::get<1>(Tuple));
}
#endif
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