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0637e87d74
This currently assumes that both sets have the same SmallSize to keep the implementation simple, a limitation that can be lifted if someone cares. llvm-svn: 152143
73 lines
1.7 KiB
C++
73 lines
1.7 KiB
C++
//===- llvm/unittest/ADT/SmallPtrSetTest.cpp ------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// SmallPtrSet unit tests.
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//
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//===----------------------------------------------------------------------===//
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#include "gtest/gtest.h"
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#include "llvm/ADT/SmallPtrSet.h"
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using namespace llvm;
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// SmallPtrSet swapping test.
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TEST(SmallPtrSetTest, SwapTest) {
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int buf[10];
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SmallPtrSet<int *, 2> a;
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SmallPtrSet<int *, 2> b;
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a.insert(&buf[0]);
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a.insert(&buf[1]);
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b.insert(&buf[2]);
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std::swap(a, b);
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EXPECT_EQ(1U, a.size());
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EXPECT_EQ(2U, b.size());
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EXPECT_TRUE(a.count(&buf[2]));
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EXPECT_TRUE(b.count(&buf[0]));
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EXPECT_TRUE(b.count(&buf[1]));
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b.insert(&buf[3]);
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std::swap(a, b);
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EXPECT_EQ(3U, a.size());
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EXPECT_EQ(1U, b.size());
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EXPECT_TRUE(a.count(&buf[0]));
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EXPECT_TRUE(a.count(&buf[1]));
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EXPECT_TRUE(a.count(&buf[3]));
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EXPECT_TRUE(b.count(&buf[2]));
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std::swap(a, b);
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EXPECT_EQ(1U, a.size());
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EXPECT_EQ(3U, b.size());
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EXPECT_TRUE(a.count(&buf[2]));
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EXPECT_TRUE(b.count(&buf[0]));
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EXPECT_TRUE(b.count(&buf[1]));
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EXPECT_TRUE(b.count(&buf[3]));
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a.insert(&buf[4]);
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a.insert(&buf[5]);
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a.insert(&buf[6]);
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std::swap(b, a);
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EXPECT_EQ(3U, a.size());
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EXPECT_EQ(4U, b.size());
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EXPECT_TRUE(b.count(&buf[2]));
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EXPECT_TRUE(b.count(&buf[4]));
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EXPECT_TRUE(b.count(&buf[5]));
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EXPECT_TRUE(b.count(&buf[6]));
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EXPECT_TRUE(a.count(&buf[0]));
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EXPECT_TRUE(a.count(&buf[1]));
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EXPECT_TRUE(a.count(&buf[3]));
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}
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