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llvm-mirror/unittests/ADT/PointerEmbeddedIntTest.cpp
Chandler Carruth 87b8e94f84 Re-sort #include lines for unittests. This uses a slightly modified
clang-format (https://reviews.llvm.org/D33932) to keep primary headers
at the top and handle new utility headers like 'gmock' consistently with
other utility headers.

No other change was made. I did no manual edits, all of this is
clang-format.

This should allow other changes to have more clear and focused diffs,
and is especially motivated by moving some headers into more focused
libraries.

llvm-svn: 304786
2017-06-06 11:06:56 +00:00

81 lines
2.6 KiB
C++

//===- llvm/unittest/ADT/PointerEmbeddedIntTest.cpp -----------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/PointerEmbeddedInt.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
TEST(PointerEmbeddedIntTest, Basic) {
PointerEmbeddedInt<int, CHAR_BIT> I = 42, J = 43;
EXPECT_EQ(42, I);
EXPECT_EQ(43, I + 1);
EXPECT_EQ(sizeof(uintptr_t) * CHAR_BIT - CHAR_BIT,
PointerLikeTypeTraits<decltype(I)>::NumLowBitsAvailable);
EXPECT_FALSE(I == J);
EXPECT_TRUE(I != J);
EXPECT_TRUE(I < J);
EXPECT_FALSE(I > J);
EXPECT_TRUE(I <= J);
EXPECT_FALSE(I >= J);
EXPECT_FALSE(I == 43);
EXPECT_TRUE(I != 43);
EXPECT_TRUE(I < 43);
EXPECT_FALSE(I > 43);
EXPECT_TRUE(I <= 43);
EXPECT_FALSE(I >= 43);
EXPECT_FALSE(42 == J);
EXPECT_TRUE(42 != J);
EXPECT_TRUE(42 < J);
EXPECT_FALSE(42 > J);
EXPECT_TRUE(42 <= J);
EXPECT_FALSE(42 >= J);
}
TEST(PointerEmbeddedIntTest, intptr_t) {
PointerEmbeddedInt<intptr_t, CHAR_BIT> IPos = 42, INeg = -42;
EXPECT_EQ(42, IPos);
EXPECT_EQ(-42, INeg);
PointerEmbeddedInt<uintptr_t, CHAR_BIT> U = 42, USaturated = 255;
EXPECT_EQ(42U, U);
EXPECT_EQ(255U, USaturated);
PointerEmbeddedInt<intptr_t, std::numeric_limits<intptr_t>::digits>
IMax = std::numeric_limits<intptr_t>::max() >> 1,
IMin = std::numeric_limits<intptr_t>::min() >> 1;
EXPECT_EQ(std::numeric_limits<intptr_t>::max() >> 1, IMax);
EXPECT_EQ(std::numeric_limits<intptr_t>::min() >> 1, IMin);
PointerEmbeddedInt<uintptr_t, std::numeric_limits<uintptr_t>::digits - 1>
UMax = std::numeric_limits<uintptr_t>::max() >> 1,
UMin = std::numeric_limits<uintptr_t>::min() >> 1;
EXPECT_EQ(std::numeric_limits<uintptr_t>::max() >> 1, UMax);
EXPECT_EQ(std::numeric_limits<uintptr_t>::min() >> 1, UMin);
}
TEST(PointerEmbeddedIntTest, PointerLikeTypeTraits) {
PointerEmbeddedInt<int, CHAR_BIT> I = 42;
using ITraits = PointerLikeTypeTraits<decltype(I)>;
EXPECT_EQ(42, ITraits::getFromVoidPointer(ITraits::getAsVoidPointer(I)));
PointerEmbeddedInt<uintptr_t, std::numeric_limits<uintptr_t>::digits - 1>
Max = std::numeric_limits<uintptr_t>::max() >> 1;
using MaxTraits = PointerLikeTypeTraits<decltype(Max)>;
EXPECT_EQ(std::numeric_limits<uintptr_t>::max() >> 1,
MaxTraits::getFromVoidPointer(MaxTraits::getAsVoidPointer(Max)));
}
} // end anonymous namespace