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Add SmallVector::{capacity,set_size}.

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- These allow clients to make use of the extra elements in the vector which
   have already been allocated, without requiring them to be value initialized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79433 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar
2009-08-19 17:48:28 +00:00
parent f7e8b5c722
commit c2da6fb3e5
2 changed files with 38 additions and 2 deletions
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18
unittests/ADT/SmallVectorTest.cpp
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@ -381,4 +381,22 @@ TEST_F(SmallVectorTest, ConstVectorTest) {
EXPECT_TRUE(constVector.begin() == constVector.end());
}
// Direct array access.
TEST_F(SmallVectorTest, DirectVectorTest) {
EXPECT_EQ(0u, theVector.size());
EXPECT_EQ(4u, theVector.capacity());
EXPECT_EQ(0, Constructable::getNumConstructorCalls());
theVector.end()[0] = 1;
theVector.end()[1] = 2;
theVector.end()[2] = 3;
theVector.end()[3] = 4;
theVector.set_size(4);
EXPECT_EQ(4u, theVector.size());
EXPECT_EQ(4, Constructable::getNumConstructorCalls());
EXPECT_EQ(1, theVector[0].getValue());
EXPECT_EQ(2, theVector[1].getValue());
EXPECT_EQ(3, theVector[2].getValue());
EXPECT_EQ(4, theVector[3].getValue());
}
}