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gecko-dev/mfbt/tests/TestCasting.cpp

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Bug 865036 - Add a Casting.h header to hold various casting methods, right now including a SafeCast method that asserts in-rangeness. r=froydnj --HG-- extra : rebase_source : ef175e4c89d07cddbe866a40fc2ca521fa32c441
2013-04-23 21:36:51 +00:00
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/Casting.h"
Bug 872127 - Part 2: Replace mozilla/StandardInteger.h with stdint.h; r=Waldo,ted
2013-07-30 14:25:31 +00:00
#include <stdint.h>
Bug 865036 - Add a Casting.h header to hold various casting methods, right now including a SafeCast method that asserts in-rangeness. r=froydnj --HG-- extra : rebase_source : ef175e4c89d07cddbe866a40fc2ca521fa32c441
2013-04-23 21:36:51 +00:00
Bug 798179 - Implement To BitwiseCast<To>(From), abstracting the treatment of a value's bits as being of another type. r=froydnj --HG-- extra : rebase_source : e6c57c10f7035b2654eafdd5fa2b3c5d8882f282
2013-06-07 01:47:51 +00:00
using mozilla::BitwiseCast;
Bug 865036 - Add a Casting.h header to hold various casting methods, right now including a SafeCast method that asserts in-rangeness. r=froydnj --HG-- extra : rebase_source : ef175e4c89d07cddbe866a40fc2ca521fa32c441
2013-04-23 21:36:51 +00:00
using mozilla::detail::IsInBounds;
Bug 798179 - Implement To BitwiseCast<To>(From), abstracting the treatment of a value's bits as being of another type. r=froydnj --HG-- extra : rebase_source : e6c57c10f7035b2654eafdd5fa2b3c5d8882f282
2013-06-07 01:47:51 +00:00
template<typename Uint, typename Ulong, bool = (sizeof(Uint) == sizeof(Ulong))>
struct UintUlongBitwiseCast;
template<typename Uint, typename Ulong>
struct UintUlongBitwiseCast<Uint, Ulong, true>
{
static void test() {
Bug 807607 - Make MFBT tests use MOZ_RELEASE_ASSERT instead of MOZ_ASSERT to ensure test coverage in non-DEBUG - r=Waldo find mfbt/tests/ -type f | xargs sed -i 's/MOZ_ASSERT/MOZ_RELEASE_ASSERT/g'
2014-04-24 21:06:50 +00:00
MOZ_RELEASE_ASSERT(BitwiseCast<Ulong>(Uint(8675309)) == Ulong(8675309));
Bug 798179 - Implement To BitwiseCast<To>(From), abstracting the treatment of a value's bits as being of another type. r=froydnj --HG-- extra : rebase_source : e6c57c10f7035b2654eafdd5fa2b3c5d8882f282
2013-06-07 01:47:51 +00:00
}
};
template<typename Uint, typename Ulong>
struct UintUlongBitwiseCast<Uint, Ulong, false>
{
static void test() { }
};
static void
TestBitwiseCast()
{
Bug 807607 - Make MFBT tests use MOZ_RELEASE_ASSERT instead of MOZ_ASSERT to ensure test coverage in non-DEBUG - r=Waldo find mfbt/tests/ -type f | xargs sed -i 's/MOZ_ASSERT/MOZ_RELEASE_ASSERT/g'
2014-04-24 21:06:50 +00:00
MOZ_RELEASE_ASSERT(BitwiseCast<int>(int(8675309)) == int(8675309));
Bug 798179 - Implement To BitwiseCast<To>(From), abstracting the treatment of a value's bits as being of another type. r=froydnj --HG-- extra : rebase_source : e6c57c10f7035b2654eafdd5fa2b3c5d8882f282
2013-06-07 01:47:51 +00:00
UintUlongBitwiseCast<unsigned int, unsigned long>::test();
}
Bug 865036 - Add a Casting.h header to hold various casting methods, right now including a SafeCast method that asserts in-rangeness. r=froydnj --HG-- extra : rebase_source : ef175e4c89d07cddbe866a40fc2ca521fa32c441
2013-04-23 21:36:51 +00:00
static void
TestSameSize()
{
Bug 807607 - Make MFBT tests use MOZ_RELEASE_ASSERT instead of MOZ_ASSERT to ensure test coverage in non-DEBUG - r=Waldo find mfbt/tests/ -type f | xargs sed -i 's/MOZ_ASSERT/MOZ_RELEASE_ASSERT/g'
2014-04-24 21:06:50 +00:00
MOZ_RELEASE_ASSERT((IsInBounds<int16_t, int16_t>(int16_t(0))));
MOZ_RELEASE_ASSERT((IsInBounds<int16_t, int16_t>(int16_t(INT16_MIN))));
MOZ_RELEASE_ASSERT((IsInBounds<int16_t, int16_t>(int16_t(INT16_MAX))));
MOZ_RELEASE_ASSERT((IsInBounds<uint16_t, uint16_t>(uint16_t(UINT16_MAX))));
MOZ_RELEASE_ASSERT((IsInBounds<uint16_t, int16_t>(uint16_t(0))));
MOZ_RELEASE_ASSERT((!IsInBounds<uint16_t, int16_t>(uint16_t(-1))));
MOZ_RELEASE_ASSERT((!IsInBounds<int16_t, uint16_t>(int16_t(-1))));
MOZ_RELEASE_ASSERT((IsInBounds<int16_t, uint16_t>(int16_t(INT16_MAX))));
MOZ_RELEASE_ASSERT((!IsInBounds<int16_t, uint16_t>(int16_t(INT16_MIN))));
MOZ_RELEASE_ASSERT((IsInBounds<int32_t, uint32_t>(int32_t(INT32_MAX))));
MOZ_RELEASE_ASSERT((!IsInBounds<int32_t, uint32_t>(int32_t(INT32_MIN))));
Bug 865036 - Add a Casting.h header to hold various casting methods, right now including a SafeCast method that asserts in-rangeness. r=froydnj --HG-- extra : rebase_source : ef175e4c89d07cddbe866a40fc2ca521fa32c441
2013-04-23 21:36:51 +00:00
}
static void
TestToBiggerSize()
{
Bug 807607 - Make MFBT tests use MOZ_RELEASE_ASSERT instead of MOZ_ASSERT to ensure test coverage in non-DEBUG - r=Waldo find mfbt/tests/ -type f | xargs sed -i 's/MOZ_ASSERT/MOZ_RELEASE_ASSERT/g'
2014-04-24 21:06:50 +00:00
MOZ_RELEASE_ASSERT((IsInBounds<int16_t, int32_t>(int16_t(0))));
MOZ_RELEASE_ASSERT((IsInBounds<int16_t, int32_t>(int16_t(INT16_MIN))));
MOZ_RELEASE_ASSERT((IsInBounds<int16_t, int32_t>(int16_t(INT16_MAX))));
MOZ_RELEASE_ASSERT((IsInBounds<uint16_t, uint32_t>(uint16_t(UINT16_MAX))));
MOZ_RELEASE_ASSERT((IsInBounds<uint16_t, int32_t>(uint16_t(0))));
MOZ_RELEASE_ASSERT((IsInBounds<uint16_t, int32_t>(uint16_t(-1))));
MOZ_RELEASE_ASSERT((!IsInBounds<int16_t, uint32_t>(int16_t(-1))));
MOZ_RELEASE_ASSERT((IsInBounds<int16_t, uint32_t>(int16_t(INT16_MAX))));
MOZ_RELEASE_ASSERT((!IsInBounds<int16_t, uint32_t>(int16_t(INT16_MIN))));
MOZ_RELEASE_ASSERT((IsInBounds<int32_t, uint64_t>(int32_t(INT32_MAX))));
MOZ_RELEASE_ASSERT((!IsInBounds<int32_t, uint64_t>(int32_t(INT32_MIN))));
Bug 865036 - Add a Casting.h header to hold various casting methods, right now including a SafeCast method that asserts in-rangeness. r=froydnj --HG-- extra : rebase_source : ef175e4c89d07cddbe866a40fc2ca521fa32c441
2013-04-23 21:36:51 +00:00
}
static void
TestToSmallerSize()
{
Bug 807607 - Make MFBT tests use MOZ_RELEASE_ASSERT instead of MOZ_ASSERT to ensure test coverage in non-DEBUG - r=Waldo find mfbt/tests/ -type f | xargs sed -i 's/MOZ_ASSERT/MOZ_RELEASE_ASSERT/g'
2014-04-24 21:06:50 +00:00
MOZ_RELEASE_ASSERT((IsInBounds<int16_t, int8_t>(int16_t(0))));
MOZ_RELEASE_ASSERT((!IsInBounds<int16_t, int8_t>(int16_t(INT16_MIN))));
MOZ_RELEASE_ASSERT((!IsInBounds<int16_t, int8_t>(int16_t(INT16_MAX))));
MOZ_RELEASE_ASSERT((!IsInBounds<uint16_t, uint8_t>(uint16_t(UINT16_MAX))));
MOZ_RELEASE_ASSERT((IsInBounds<uint16_t, int8_t>(uint16_t(0))));
MOZ_RELEASE_ASSERT((!IsInBounds<uint16_t, int8_t>(uint16_t(-1))));
MOZ_RELEASE_ASSERT((!IsInBounds<int16_t, uint8_t>(int16_t(-1))));
MOZ_RELEASE_ASSERT((!IsInBounds<int16_t, uint8_t>(int16_t(INT16_MAX))));
MOZ_RELEASE_ASSERT((!IsInBounds<int16_t, uint8_t>(int16_t(INT16_MIN))));
MOZ_RELEASE_ASSERT((!IsInBounds<int32_t, uint16_t>(int32_t(INT32_MAX))));
MOZ_RELEASE_ASSERT((!IsInBounds<int32_t, uint16_t>(int32_t(INT32_MIN))));
Bug 865036 - Add a Casting.h header to hold various casting methods, right now including a SafeCast method that asserts in-rangeness. r=froydnj --HG-- extra : rebase_source : ef175e4c89d07cddbe866a40fc2ca521fa32c441
2013-04-23 21:36:51 +00:00
// Boundary cases
Bug 807607 - Make MFBT tests use MOZ_RELEASE_ASSERT instead of MOZ_ASSERT to ensure test coverage in non-DEBUG - r=Waldo find mfbt/tests/ -type f | xargs sed -i 's/MOZ_ASSERT/MOZ_RELEASE_ASSERT/g'
2014-04-24 21:06:50 +00:00
MOZ_RELEASE_ASSERT((!IsInBounds<int64_t, int32_t>(int64_t(INT32_MIN) - 1)));
MOZ_RELEASE_ASSERT((IsInBounds<int64_t, int32_t>(int64_t(INT32_MIN))));
MOZ_RELEASE_ASSERT((IsInBounds<int64_t, int32_t>(int64_t(INT32_MIN) + 1)));
MOZ_RELEASE_ASSERT((IsInBounds<int64_t, int32_t>(int64_t(INT32_MAX) - 1)));
MOZ_RELEASE_ASSERT((IsInBounds<int64_t, int32_t>(int64_t(INT32_MAX))));
MOZ_RELEASE_ASSERT((!IsInBounds<int64_t, int32_t>(int64_t(INT32_MAX) + 1)));
Bug 865036 - Add a Casting.h header to hold various casting methods, right now including a SafeCast method that asserts in-rangeness. r=froydnj --HG-- extra : rebase_source : ef175e4c89d07cddbe866a40fc2ca521fa32c441
2013-04-23 21:36:51 +00:00
Bug 807607 - Make MFBT tests use MOZ_RELEASE_ASSERT instead of MOZ_ASSERT to ensure test coverage in non-DEBUG - r=Waldo find mfbt/tests/ -type f | xargs sed -i 's/MOZ_ASSERT/MOZ_RELEASE_ASSERT/g'
2014-04-24 21:06:50 +00:00
MOZ_RELEASE_ASSERT((!IsInBounds<int64_t, uint32_t>(int64_t(-1))));
MOZ_RELEASE_ASSERT((IsInBounds<int64_t, uint32_t>(int64_t(0))));
MOZ_RELEASE_ASSERT((IsInBounds<int64_t, uint32_t>(int64_t(1))));
MOZ_RELEASE_ASSERT((IsInBounds<int64_t, uint32_t>(int64_t(UINT32_MAX) - 1)));
MOZ_RELEASE_ASSERT((IsInBounds<int64_t, uint32_t>(int64_t(UINT32_MAX))));
MOZ_RELEASE_ASSERT((!IsInBounds<int64_t, uint32_t>(int64_t(UINT32_MAX) + 1)));
Bug 865036 - Add a Casting.h header to hold various casting methods, right now including a SafeCast method that asserts in-rangeness. r=froydnj --HG-- extra : rebase_source : ef175e4c89d07cddbe866a40fc2ca521fa32c441
2013-04-23 21:36:51 +00:00
}
int
main()
{
Bug 798179 - Implement To BitwiseCast<To>(From), abstracting the treatment of a value's bits as being of another type. r=froydnj --HG-- extra : rebase_source : e6c57c10f7035b2654eafdd5fa2b3c5d8882f282
2013-06-07 01:47:51 +00:00
TestBitwiseCast();
Bug 865036 - Add a Casting.h header to hold various casting methods, right now including a SafeCast method that asserts in-rangeness. r=froydnj --HG-- extra : rebase_source : ef175e4c89d07cddbe866a40fc2ca521fa32c441
2013-04-23 21:36:51 +00:00
TestSameSize();
TestToBiggerSize();
TestToSmallerSize();
}
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