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      1 //===- llvm/unittest/ADT/ArrayRefTest.cpp - ArrayRef unit tests -----------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #include "llvm/ADT/ArrayRef.h"
     11 #include "llvm/Support/Allocator.h"
     12 #include "llvm/Support/raw_ostream.h"
     13 #include "gtest/gtest.h"
     14 using namespace llvm;
     15 
     16 namespace llvm {
     17 
     18 TEST(ArrayRefTest, AllocatorCopy) {
     19   BumpPtrAllocator Alloc;
     20   static const uint16_t Words1[] = { 1, 4, 200, 37 };
     21   ArrayRef<uint16_t> Array1 = makeArrayRef(Words1, 4);
     22   static const uint16_t Words2[] = { 11, 4003, 67, 64000, 13 };
     23   ArrayRef<uint16_t> Array2 = makeArrayRef(Words2, 5);
     24   ArrayRef<uint16_t> Array1c = Array1.copy(Alloc);
     25   ArrayRef<uint16_t> Array2c = Array2.copy(Alloc);;
     26   EXPECT_TRUE(Array1.equals(Array1c));
     27   EXPECT_NE(Array1.data(), Array1c.data());
     28   EXPECT_TRUE(Array2.equals(Array2c));
     29   EXPECT_NE(Array2.data(), Array2c.data());
     30 }
     31 
     32 TEST(ArrayRefTest, DropBack) {
     33   static const int TheNumbers[] = {4, 8, 15, 16, 23, 42};
     34   ArrayRef<int> AR1(TheNumbers);
     35   ArrayRef<int> AR2(TheNumbers, AR1.size() - 1);
     36   EXPECT_TRUE(AR1.drop_back().equals(AR2));
     37 }
     38 
     39 
     40 } // end anonymous namespace
     41