| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "memory/allocation.hpp" |
| #include "metaprogramming/isSame.hpp" |
| #include "metaprogramming/primitiveConversions.hpp" |
| #include "unittest.hpp" |
| #include "utilities/debug.hpp" |
| |
| struct PrimitiveConversionsTestSupport: AllStatic { |
| |
| template<size_t byte_size> struct SignedTypeOfSize; |
| template<size_t byte_size> struct UnsignedTypeOfSize; |
| |
| template<typename T> struct Signed; |
| template<typename T> struct Unsigned; |
| }; |
| |
| #define DEFINE_CANONICAL_SIGNED_TYPE(T) \ |
| template<> \ |
| struct PrimitiveConversionsTestSupport::SignedTypeOfSize<sizeof(T)> \ |
| : public AllStatic \ |
| { \ |
| typedef T type; \ |
| }; |
| |
| #define DEFINE_CANONICAL_UNSIGNED_TYPE(T) \ |
| template<> \ |
| struct PrimitiveConversionsTestSupport::UnsignedTypeOfSize<sizeof(T)> \ |
| : public AllStatic \ |
| { \ |
| typedef T type; \ |
| }; |
| |
| #define DEFINE_INTEGER_TYPES_OF_SIZE(NBITS) \ |
| DEFINE_CANONICAL_SIGNED_TYPE(int ## NBITS ## _t) \ |
| DEFINE_CANONICAL_UNSIGNED_TYPE(uint ## NBITS ## _t) |
| |
| DEFINE_INTEGER_TYPES_OF_SIZE(8) |
| DEFINE_INTEGER_TYPES_OF_SIZE(16) |
| DEFINE_INTEGER_TYPES_OF_SIZE(32) |
| DEFINE_INTEGER_TYPES_OF_SIZE(64) |
| |
| #undef DEFINE_INTEGER_TYPES_OF_SIZE |
| #undef DEFINE_CANONICAL_SIGNED_TYPE |
| #undef DEFINE_CANONICAL_UNSIGNED_TYPE |
| |
| template<typename T> |
| struct PrimitiveConversionsTestSupport::Signed |
| : public SignedTypeOfSize<sizeof(T)> |
| {}; |
| |
| template<typename T> |
| struct PrimitiveConversionsTestSupport::Unsigned |
| : public UnsignedTypeOfSize<sizeof(T)> |
| {}; |
| |
| TEST(PrimitiveConversionsTest, round_trip_int) { |
| int sfive = 5; |
| int mfive = -5; |
| uint ufive = 5u; |
| |
| typedef PrimitiveConversionsTestSupport::Signed<int>::type SI; |
| typedef PrimitiveConversionsTestSupport::Unsigned<int>::type UI; |
| |
| EXPECT_EQ(sfive, PrimitiveConversions::cast<int>(PrimitiveConversions::cast<SI>(sfive))); |
| EXPECT_EQ(sfive, PrimitiveConversions::cast<int>(PrimitiveConversions::cast<UI>(sfive))); |
| |
| EXPECT_EQ(mfive, PrimitiveConversions::cast<int>(PrimitiveConversions::cast<SI>(mfive))); |
| EXPECT_EQ(mfive, PrimitiveConversions::cast<int>(PrimitiveConversions::cast<UI>(mfive))); |
| |
| EXPECT_EQ(ufive, PrimitiveConversions::cast<uint>(PrimitiveConversions::cast<SI>(ufive))); |
| EXPECT_EQ(ufive, PrimitiveConversions::cast<uint>(PrimitiveConversions::cast<UI>(ufive))); |
| } |
| |
| TEST(PrimitiveConversionsTest, round_trip_float) { |
| float ffive = 5.0f; |
| double dfive = 5.0; |
| |
| typedef PrimitiveConversionsTestSupport::Signed<float>::type SF; |
| typedef PrimitiveConversionsTestSupport::Unsigned<float>::type UF; |
| |
| typedef PrimitiveConversionsTestSupport::Signed<double>::type SD; |
| typedef PrimitiveConversionsTestSupport::Unsigned<double>::type UD; |
| |
| EXPECT_EQ(ffive, PrimitiveConversions::cast<float>(PrimitiveConversions::cast<SF>(ffive))); |
| EXPECT_EQ(ffive, PrimitiveConversions::cast<float>(PrimitiveConversions::cast<UF>(ffive))); |
| |
| EXPECT_EQ(dfive, PrimitiveConversions::cast<double>(PrimitiveConversions::cast<SD>(dfive))); |
| EXPECT_EQ(dfive, PrimitiveConversions::cast<double>(PrimitiveConversions::cast<UD>(dfive))); |
| } |
| |
| TEST(PrimitiveConversionsTest, round_trip_ptr) { |
| int five = 5; |
| int* pfive = &five; |
| const int* cpfive = &five; |
| |
| typedef PrimitiveConversionsTestSupport::Signed<int*>::type SIP; |
| typedef PrimitiveConversionsTestSupport::Unsigned<int*>::type UIP; |
| |
| EXPECT_EQ(pfive, PrimitiveConversions::cast<int*>(PrimitiveConversions::cast<SIP>(pfive))); |
| EXPECT_EQ(pfive, PrimitiveConversions::cast<int*>(PrimitiveConversions::cast<UIP>(pfive))); |
| |
| EXPECT_EQ(cpfive, PrimitiveConversions::cast<const int*>(PrimitiveConversions::cast<SIP>(cpfive))); |
| EXPECT_EQ(cpfive, PrimitiveConversions::cast<const int*>(PrimitiveConversions::cast<UIP>(cpfive))); |
| } |