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llvm-mirror/unittests/ADT/APSIntTest.cpp
Benjamin Kramer e3d4c30feb Give APInt move semantics.
The interaction between defaulted operators and move elision isn't
totally obvious, add a unit test so it doesn't break unintentionally.

llvm-svn: 202662
2014-03-02 20:56:28 +00:00

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C++

//===- llvm/unittest/ADT/APSIntTest.cpp - APSInt unit tests ---------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/APSInt.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(APSIntTest, MoveTest) {
APSInt A(32, true);
EXPECT_TRUE(A.isUnsigned());
APSInt B(128, false);
A = B;
EXPECT_FALSE(A.isUnsigned());
APSInt C(B);
EXPECT_FALSE(C.isUnsigned());
APInt Wide(256, 0);
const uint64_t *Bits = Wide.getRawData();
APSInt D(std::move(Wide));
EXPECT_TRUE(D.isUnsigned());
EXPECT_EQ(Bits, D.getRawData()); // Verify that "Wide" was really moved.
A = APSInt(64, true);
EXPECT_TRUE(A.isUnsigned());
Wide = APInt(128, 1);
Bits = Wide.getRawData();
A = std::move(Wide);
EXPECT_TRUE(A.isUnsigned());
EXPECT_EQ(Bits, A.getRawData()); // Verify that "Wide" was really moved.
}
}