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[ADT] Teach MapVector to support a swap member. Will be used in

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a subsequent commit in Clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233159 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chandler Carruth
2015-03-25 00:50:21 +00:00
parent 41509f4261
commit ef81f7c255
2 changed files with 30 additions and 0 deletions
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25
unittests/ADT/MapVectorTest.cpp
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@ -14,6 +14,31 @@
using namespace llvm;
TEST(MapVectorTest, swap) {
MapVector<int, int> MV1, MV2;
std::pair<MapVector<int, int>::iterator, bool> R;
R = MV1.insert(std::make_pair(1, 2));
ASSERT_EQ(R.first, MV1.begin());
EXPECT_EQ(R.first->first, 1);
EXPECT_EQ(R.first->second, 2);
EXPECT_TRUE(R.second);
EXPECT_FALSE(MV1.empty());
EXPECT_TRUE(MV2.empty());
MV2.swap(MV1);
EXPECT_TRUE(MV1.empty());
EXPECT_FALSE(MV2.empty());
auto I = MV1.find(1);
ASSERT_EQ(MV1.end(), I);
I = MV2.find(1);
ASSERT_EQ(I, MV2.begin());
EXPECT_EQ(I->first, 1);
EXPECT_EQ(I->second, 2);
}
TEST(MapVectorTest, insert_pop) {
MapVector<int, int> MV;
std::pair<MapVector<int, int>::iterator, bool> R;