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llvm-project/clang/unittests/StaticAnalyzer/RangeSetTest.cpp

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//===- unittests/StaticAnalyzer/RangeSetTest.cpp ----------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "clang/Basic/Builtins.h"
#include "clang/Basic/FileManager.h"
#include "clang/Basic/SourceManager.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/RangedConstraintManager.h"
#include "clang/Tooling/Tooling.h"
#include "llvm/ADT/APSInt.h"
#include "llvm/Support/raw_ostream.h"
#include "gtest/gtest.h"
using namespace clang;
using namespace ento;
namespace clang {
namespace ento {
template <class RangeOrSet> static std::string toString(const RangeOrSet &Obj) {
std::string ObjRepresentation;
llvm::raw_string_ostream SS(ObjRepresentation);
Obj.dump(SS);
return SS.str();
}
LLVM_ATTRIBUTE_UNUSED static std::string toString(const llvm::APSInt &Point) {
return toString(Point, 10);
}
// We need it here for better fail diagnostics from gtest.
LLVM_ATTRIBUTE_UNUSED static std::ostream &operator<<(std::ostream &OS,
const RangeSet &Set) {
return OS << toString(Set);
}
// We need it here for better fail diagnostics from gtest.
LLVM_ATTRIBUTE_UNUSED static std::ostream &operator<<(std::ostream &OS,
const Range &R) {
return OS << toString(R);
}
LLVM_ATTRIBUTE_UNUSED static std::ostream &operator<<(std::ostream &OS,
APSIntType Ty) {
return OS << (Ty.isUnsigned() ? "u" : "s") << Ty.getBitWidth();
}
} // namespace ento
} // namespace clang
namespace {
template <class T> constexpr bool is_signed_v = std::is_signed<T>::value;
template <typename T> struct TestValues {
static constexpr T MIN = std::numeric_limits<T>::min();
static constexpr T MAX = std::numeric_limits<T>::max();
// MID is a value in the middle of the range
// which unary minus does not affect on,
// e.g. int8/int32(0), uint8(128), uint32(2147483648).
static constexpr T MID =
is_signed_v<T> ? 0 : ~(static_cast<T>(-1) / static_cast<T>(2));
static constexpr T A = MID - (MAX - MID) / 3 * 2;
static constexpr T B = MID - (MAX - MID) / 3;
static constexpr T C = -B;
static constexpr T D = -A;
static_assert(MIN < A && A < B && B < MID && MID < C && C < D && D < MAX,
"Values shall be in an ascending order");
// Clear bits in low bytes by the given amount.
template <T Value, size_t Bytes>
static constexpr T ClearLowBytes =
static_cast<T>(static_cast<uint64_t>(Value)
<< ((Bytes >= CHAR_BIT) ? 0 : Bytes) * CHAR_BIT);
template <T Value, typename Base>
static constexpr T TruncZeroOf = ClearLowBytes<Value + 1, sizeof(Base)>;
// Random number with active bits in every byte. 0xAAAA'AAAA
static constexpr T XAAA = static_cast<T>(
0b10101010'10101010'10101010'10101010'10101010'10101010'10101010'10101010);
template <typename Base>
static constexpr T XAAATruncZeroOf = TruncZeroOf<XAAA, Base>; // 0xAAAA'AB00
// Random number with active bits in every byte. 0x5555'5555
static constexpr T X555 = static_cast<T>(
0b01010101'01010101'01010101'01010101'01010101'01010101'01010101'01010101);
template <typename Base>
static constexpr T X555TruncZeroOf = TruncZeroOf<X555, Base>; // 0x5555'5600
// Numbers for ranges with the same bits in the lowest byte.
// 0xAAAA'AA2A
static constexpr T FromA = ClearLowBytes<XAAA, sizeof(T) - 1> + 42;
static constexpr T ToA = FromA + 2; // 0xAAAA'AA2C
// 0x5555'552A
static constexpr T FromB = ClearLowBytes<X555, sizeof(T) - 1> + 42;
static constexpr T ToB = FromB + 2; // 0x5555'552C
};
template <typename T>
static constexpr APSIntType APSIntTy =
APSIntType(sizeof(T) * CHAR_BIT, !is_signed_v<T>);
template <typename BaseType> class RangeSetTest : public testing::Test {
public:
// Init block
std::unique_ptr<ASTUnit> AST = tooling::buildASTFromCode("struct foo;");
ASTContext &Context = AST->getASTContext();
llvm::BumpPtrAllocator Arena;
BasicValueFactory BVF{Context, Arena};
RangeSet::Factory F{BVF};
// End init block
using Self = RangeSetTest<BaseType>;
template <typename T> using RawRangeT = std::pair<T, T>;
template <typename T>
using RawRangeSetT = std::initializer_list<RawRangeT<T>>;
using RawRange = RawRangeT<BaseType>;
using RawRangeSet = RawRangeSetT<BaseType>;
template <typename T> const llvm::APSInt &from(T X) {
static llvm::APSInt Int = APSIntTy<T>.getZeroValue();
Int = X;
return BVF.getValue(Int);
}
template <typename T> Range from(const RawRangeT<T> &Init) {
return Range(from(Init.first), from(Init.second));
}
template <typename T>
RangeSet from(RawRangeSetT<T> Init, APSIntType Ty = APSIntTy<BaseType>) {
RangeSet RangeSet = F.getEmptySet();
for (const auto &Raw : Init) {
RangeSet = F.add(RangeSet, from(Raw));
}
return RangeSet;
}
template <class F, class... RawArgTypes>
void wrap(F ActualFunction, RawArgTypes &&... Args) {
(this->*ActualFunction)(from(std::forward<RawArgTypes>(Args))...);
}
void checkNegateImpl(RangeSet Original, RangeSet Expected) {
RangeSet NegatedFromOriginal = F.negate(Original);
EXPECT_EQ(NegatedFromOriginal, Expected);
// Negate negated back and check with original.
RangeSet NegatedBackward = F.negate(NegatedFromOriginal);
EXPECT_EQ(NegatedBackward, Original);
}
void checkNegate(RawRangeSet RawOriginal, RawRangeSet RawExpected) {
wrap(&Self::checkNegateImpl, RawOriginal, RawExpected);
}
template <class PointOrSet>
void checkIntersectImpl(RangeSet LHS, PointOrSet RHS, RangeSet Expected) {
RangeSet Result = F.intersect(LHS, RHS);
EXPECT_EQ(Result, Expected)
<< "while intersecting " << toString(LHS) << " and " << toString(RHS);
}
void checkIntersectRangeImpl(RangeSet LHS, const llvm::APSInt &Lower,
const llvm::APSInt &Upper, RangeSet Expected) {
RangeSet Result = F.intersect(LHS, Lower, Upper);
EXPECT_EQ(Result, Expected)
<< "while intersecting " << toString(LHS) << " and [" << toString(Lower)
<< ", " << toString(Upper) << "]";
}
void checkIntersect(RawRangeSet RawLHS, RawRangeSet RawRHS,
RawRangeSet RawExpected) {
wrap(&Self::checkIntersectImpl<RangeSet>, RawLHS, RawRHS, RawExpected);
}
void checkIntersect(RawRangeSet RawLHS, BaseType RawRHS,
RawRangeSet RawExpected) {
wrap(&Self::checkIntersectImpl<const llvm::APSInt &>, RawLHS, RawRHS,
RawExpected);
}
void checkIntersect(RawRangeSet RawLHS, BaseType RawLower, BaseType RawUpper,
RawRangeSet RawExpected) {
wrap(&Self::checkIntersectRangeImpl, RawLHS, RawLower, RawUpper,
RawExpected);
}
void checkContainsImpl(RangeSet LHS, const llvm::APSInt &RHS, bool Expected) {
bool Result = LHS.contains(RHS);
EXPECT_EQ(Result, Expected)
<< toString(LHS) << (Result ? " contains " : " doesn't contain ")
<< toString(RHS);
}
void checkContains(RawRangeSet RawLHS, BaseType RawRHS, bool Expected) {
checkContainsImpl(from(RawLHS), from(RawRHS), Expected);
}
template <class RHSType>
void checkAddImpl(RangeSet LHS, RHSType RHS, RangeSet Expected) {
RangeSet Result = F.add(LHS, RHS);
EXPECT_EQ(Result, Expected)
<< "while adding " << toString(LHS) << " and " << toString(RHS);
}
void checkAdd(RawRangeSet RawLHS, RawRange RawRHS, RawRangeSet RawExpected) {
wrap(&Self::checkAddImpl<Range>, RawLHS, RawRHS, RawExpected);
}
void checkAdd(RawRangeSet RawLHS, RawRangeSet RawRHS,
RawRangeSet RawExpected) {
wrap(&Self::checkAddImpl<RangeSet>, RawLHS, RawRHS, RawExpected);
}
void checkAdd(RawRangeSet RawLHS, BaseType RawRHS, RawRangeSet RawExpected) {
wrap(&Self::checkAddImpl<const llvm::APSInt &>, RawLHS, RawRHS,
RawExpected);
}
template <class RHSType>
void checkUniteImpl(RangeSet LHS, RHSType RHS, RangeSet Expected) {
RangeSet Result = F.unite(LHS, RHS);
EXPECT_EQ(Result, Expected)
<< "while uniting " << toString(LHS) << " and " << toString(RHS);
}
void checkUnite(RawRangeSet RawLHS, RawRange RawRHS,
RawRangeSet RawExpected) {
wrap(&Self::checkUniteImpl<Range>, RawLHS, RawRHS, RawExpected);
}
void checkUnite(RawRangeSet RawLHS, RawRangeSet RawRHS,
RawRangeSet RawExpected) {
wrap(&Self::checkUniteImpl<RangeSet>, RawLHS, RawRHS, RawExpected);
}
void checkUnite(RawRangeSet RawLHS, BaseType RawRHS,
RawRangeSet RawExpected) {
wrap(&Self::checkUniteImpl<const llvm::APSInt &>, RawLHS, RawRHS,
RawExpected);
}
void checkDeleteImpl(const llvm::APSInt &Point, RangeSet From,
RangeSet Expected) {
RangeSet Result = F.deletePoint(From, Point);
EXPECT_EQ(Result, Expected)
<< "while deleting " << toString(Point) << " from " << toString(From);
}
void checkDelete(BaseType Point, RawRangeSet RawFrom,
RawRangeSet RawExpected) {
wrap(&Self::checkDeleteImpl, Point, RawFrom, RawExpected);
}
void checkCastToImpl(RangeSet What, APSIntType Ty, RangeSet Expected) {
RangeSet Result = F.castTo(What, Ty);
EXPECT_EQ(Result, Expected)
<< "while casting " << toString(What) << " to " << Ty;
}
template <typename From, typename To>
void checkCastTo(RawRangeSetT<From> What, RawRangeSetT<To> Expected) {
static constexpr APSIntType FromTy = APSIntTy<From>;
static constexpr APSIntType ToTy = APSIntTy<To>;
this->checkCastToImpl(from(What, FromTy), ToTy, from(Expected, ToTy));
}
};
using IntTypes = ::testing::Types<int8_t, uint8_t, int16_t, uint16_t, int32_t,
uint32_t, int64_t, uint64_t>;
TYPED_TEST_SUITE(RangeSetTest, IntTypes, );
TYPED_TEST(RangeSetTest, RangeSetNegateTest) {
using TV = TestValues<TypeParam>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
constexpr auto MID = TV::MID;
constexpr auto A = TV::A;
constexpr auto B = TV::B;
constexpr auto C = TV::C;
constexpr auto D = TV::D;
this->checkNegate({{MIN, A}}, {{MIN, MIN}, {D, MAX}});
this->checkNegate({{MIN, C}}, {{MIN, MIN}, {B, MAX}});
this->checkNegate({{MIN, MID}}, {{MIN, MIN}, {MID, MAX}});
this->checkNegate({{MIN, MAX}}, {{MIN, MAX}});
this->checkNegate({{A, D}}, {{A, D}});
this->checkNegate({{A, B}}, {{C, D}});
this->checkNegate({{MIN, A}, {D, MAX}}, {{MIN, A}, {D, MAX}});
this->checkNegate({{MIN, B}, {MID, D}}, {{MIN, MIN}, {A, MID}, {C, MAX}});
this->checkNegate({{MIN, MID}, {C, D}}, {{MIN, MIN}, {A, B}, {MID, MAX}});
this->checkNegate({{MIN, MID}, {C, MAX}}, {{MIN, B}, {MID, MAX}});
this->checkNegate({{A, MID}, {D, MAX}}, {{MIN + 1, A}, {MID, D}});
this->checkNegate({{A, A}}, {{D, D}});
this->checkNegate({{MID, MID}}, {{MID, MID}});
this->checkNegate({{MAX, MAX}}, {{MIN + 1, MIN + 1}});
}
TYPED_TEST(RangeSetTest, RangeSetPointIntersectTest) {
// Check that we can correctly intersect empty sets.
this->checkIntersect({}, 42, {});
// Check that intersection with itself produces the same set.
this->checkIntersect({{42, 42}}, 42, {{42, 42}});
// Check more general cases.
this->checkIntersect({{0, 10}, {20, 30}, {30, 40}, {50, 60}}, 42, {});
this->checkIntersect({{0, 10}, {20, 30}, {30, 60}}, 42, {{42, 42}});
}
TYPED_TEST(RangeSetTest, RangeSetRangeIntersectTest) {
using TV = TestValues<TypeParam>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
// Check that we can correctly intersect empty sets.
this->checkIntersect({}, 10, 20, {});
this->checkIntersect({}, 20, 10, {});
// Check that intersection with itself produces the same set.
this->checkIntersect({{10, 20}}, 10, 20, {{10, 20}});
this->checkIntersect({{MIN, 10}, {20, MAX}}, 20, 10, {{MIN, 10}, {20, MAX}});
// Check non-overlapping range intersections.
this->checkIntersect({{10, 20}}, 21, 9, {});
this->checkIntersect({{MIN, 9}, {21, MAX}}, 10, 20, {});
// Check more general cases.
this->checkIntersect({{0, 10}, {20, 30}, {30, 40}, {50, 60}}, 10, 35,
{{10, 10}, {20, 30}, {30, 35}});
this->checkIntersect({{0, 10}, {20, 30}, {30, 40}, {50, 60}}, 35, 10,
{{0, 10}, {35, 40}, {50, 60}});
}
TYPED_TEST(RangeSetTest, RangeSetGenericIntersectTest) {
// Check that we can correctly intersect empty sets.
this->checkIntersect({}, {}, {});
this->checkIntersect({}, {{0, 10}}, {});
this->checkIntersect({{0, 10}}, {}, {});
this->checkIntersect({{0, 10}}, {{4, 6}}, {{4, 6}});
this->checkIntersect({{0, 10}}, {{4, 20}}, {{4, 10}});
// Check that intersection with points works as expected.
this->checkIntersect({{0, 10}}, {{4, 4}}, {{4, 4}});
// All ranges are closed, check that intersection with edge points works as
// expected.
this->checkIntersect({{0, 10}}, {{10, 10}}, {{10, 10}});
// Let's check that we can skip some intervals and partially intersect
// other intervals.
this->checkIntersect({{0, 2}, {4, 5}, {6, 9}, {10, 11}, {12, 12}, {13, 15}},
{{8, 14}, {20, 30}},
{{8, 9}, {10, 11}, {12, 12}, {13, 14}});
// Check more generic case.
this->checkIntersect(
{{0, 1}, {2, 3}, {5, 6}, {7, 15}, {25, 30}},
{{4, 10}, {11, 11}, {12, 16}, {17, 17}, {19, 20}, {21, 23}, {24, 27}},
{{5, 6}, {7, 10}, {11, 11}, {12, 15}, {25, 27}});
}
TYPED_TEST(RangeSetTest, RangeSetContainsTest) {
// Check with an empty set.
this->checkContains({}, 10, false);
// Check contains with sets of size one:
// * when the whole range is less
this->checkContains({{0, 5}}, 10, false);
// * when the whole range is greater
this->checkContains({{20, 25}}, 10, false);
// * when the range is just the point we are looking for
this->checkContains({{10, 10}}, 10, true);
// * when the range starts with the point
this->checkContains({{10, 15}}, 10, true);
// * when the range ends with the point
this->checkContains({{5, 10}}, 10, true);
// * when the range has the point somewhere in the middle
this->checkContains({{0, 25}}, 10, true);
// Check similar cases, but with larger sets.
this->checkContains({{0, 5}, {10, 10}, {15, 20}}, 10, true);
this->checkContains({{0, 5}, {10, 12}, {15, 20}}, 10, true);
this->checkContains({{0, 5}, {5, 7}, {8, 10}, {12, 41}}, 10, true);
using TV = TestValues<TypeParam>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
constexpr auto MID = TV::MID;
this->checkContains({{MIN, MAX}}, 0, true);
this->checkContains({{MIN, MAX}}, MID, true);
this->checkContains({{MIN, MAX}}, -10, true);
this->checkContains({{MIN, MAX}}, 10, true);
}
TYPED_TEST(RangeSetTest, RangeSetAddTest) {
// Check adding single points
this->checkAdd({}, 10, {{10, 10}});
this->checkAdd({{0, 5}}, 10, {{0, 5}, {10, 10}});
this->checkAdd({{0, 5}, {30, 40}}, 10, {{0, 5}, {10, 10}, {30, 40}});
// Check adding single ranges.
this->checkAdd({}, {10, 20}, {{10, 20}});
this->checkAdd({{0, 5}}, {10, 20}, {{0, 5}, {10, 20}});
this->checkAdd({{0, 5}, {30, 40}}, {10, 20}, {{0, 5}, {10, 20}, {30, 40}});
// Check adding whole sets of ranges.
this->checkAdd({{0, 5}}, {{10, 20}}, {{0, 5}, {10, 20}});
// Check that ordering of ranges is as expected.
this->checkAdd({{0, 5}, {30, 40}}, {{10, 20}}, {{0, 5}, {10, 20}, {30, 40}});
this->checkAdd({{0, 5}, {30, 40}}, {{10, 20}, {50, 60}},
{{0, 5}, {10, 20}, {30, 40}, {50, 60}});
this->checkAdd({{10, 20}, {50, 60}}, {{0, 5}, {30, 40}, {70, 80}},
{{0, 5}, {10, 20}, {30, 40}, {50, 60}, {70, 80}});
}
TYPED_TEST(RangeSetTest, RangeSetDeletePointTest) {
using TV = TestValues<TypeParam>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
constexpr auto MID = TV::MID;
this->checkDelete(MID, {{MIN, MAX}}, {{MIN, MID - 1}, {MID + 1, MAX}});
// Check that delete works with an empty set.
this->checkDelete(10, {}, {});
// Check that delete can remove entire ranges.
this->checkDelete(10, {{10, 10}}, {});
this->checkDelete(10, {{0, 5}, {10, 10}, {20, 30}}, {{0, 5}, {20, 30}});
// Check that delete can split existing ranges into two.
this->checkDelete(10, {{0, 5}, {7, 15}, {20, 30}},
{{0, 5}, {7, 9}, {11, 15}, {20, 30}});
// Check that delete of the point not from the range set works as expected.
this->checkDelete(10, {{0, 5}, {20, 30}}, {{0, 5}, {20, 30}});
}
TYPED_TEST(RangeSetTest, RangeSetUniteTest) {
using TV = TestValues<TypeParam>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
constexpr auto MID = TV::MID;
constexpr auto A = TV::A;
constexpr auto B = TV::B;
constexpr auto C = TV::C;
constexpr auto D = TV::D;
// LHS and RHS is empty.
// RHS =>
// LHS => =
// ___________________ ___________________
this->checkUnite({}, {}, {});
// RHS is empty.
// RHS =>
// LHS => _____ = _____
// ______/_____\______ ______/_____\______
this->checkUnite({{A, B}}, {}, {{A, B}});
this->checkUnite({{A, B}, {C, D}}, {}, {{A, B}, {C, D}});
this->checkUnite({{MIN, MIN}}, {}, {{MIN, MIN}});
this->checkUnite({{MAX, MAX}}, {}, {{MAX, MAX}});
this->checkUnite({{MIN, MIN}, {MAX, MAX}}, {}, {{MIN, MIN}, {MAX, MAX}});
// LHS is empty.
// RHS => ___
// LHS => / \ = _____
// ______/_____\______ ______/_____\______
this->checkUnite({}, B, {{B, B}});
this->checkUnite({}, {B, C}, {{B, C}});
this->checkUnite({}, {{MIN, B}, {C, MAX}}, {{MIN, B}, {C, MAX}});
this->checkUnite({}, {{MIN, MIN}}, {{MIN, MIN}});
this->checkUnite({}, {{MAX, MAX}}, {{MAX, MAX}});
this->checkUnite({}, {{MIN, MIN}, {MAX, MAX}}, {{MIN, MIN}, {MAX, MAX}});
// RHS is detached from LHS.
// RHS => ___
// LHS => ___ / \ = ___ _____
// __/___\___/_____\__ __/___\___/_____\__
this->checkUnite({{A, C}}, D, {{A, C}, {D, D}});
this->checkUnite({{MID, C}, {D, MAX}}, A, {{A, A}, {MID, C}, {D, MAX}});
this->checkUnite({{A, B}}, {MID, D}, {{A, B}, {MID, D}});
this->checkUnite({{MIN, A}, {D, MAX}}, {B, C}, {{MIN, A}, {B, C}, {D, MAX}});
this->checkUnite({{B, MID}, {D, MAX}}, {{MIN, A}, {C, C}},
{{MIN, A}, {B, MID}, {C, C}, {D, MAX}});
this->checkUnite({{MIN, A}, {C, C}}, {{B, MID}, {D, MAX}},
{{MIN, A}, {B, MID}, {C, C}, {D, MAX}});
this->checkUnite({{A, B}}, {{MAX, MAX}}, {{A, B}, {MAX, MAX}});
this->checkUnite({{MIN, MIN}}, {A, B}, {{MIN, MIN}, {A, B}});
this->checkUnite({{MIN, MIN}}, {MAX, MAX}, {{MIN, MIN}, {MAX, MAX}});
// RHS is inside LHS.
// RHS => ___
// LHS => ___/___\___ = ___________
// ___/__/_____\__\___ ___/___________\___
this->checkUnite({{A, C}}, MID, {{A, C}});
this->checkUnite({{A, D}}, {B, C}, {{A, D}});
this->checkUnite({{MIN, MAX}}, {B, C}, {{MIN, MAX}});
// RHS wraps LHS.
// RHS => _________
// LHS => / _____ \ = ___________
// ___/__/_____\__\___ ___/___________\___
this->checkUnite({{MID, MID}}, {A, D}, {{A, D}});
this->checkUnite({{B, C}}, {A, D}, {{A, D}});
this->checkUnite({{A, B}}, {MIN, MAX}, {{MIN, MAX}});
// RHS equals to LHS.
// RHS => _________
// LHS => /_________\ = ___________
// ___/___________\___ ___/___________\___
this->checkUnite({{MIN, MIN}}, MIN, {{MIN, MIN}});
this->checkUnite({{A, B}}, {A, B}, {{A, B}});
this->checkUnite({{MAX, MAX}}, {{MAX, MAX}}, {{MAX, MAX}});
this->checkUnite({{MIN, MIN}}, {{MIN, MIN}}, {{MIN, MIN}});
this->checkUnite({{MIN, MIN}, {MAX, MAX}}, {{MIN, MIN}, {MAX, MAX}},
{{MIN, MIN}, {MAX, MAX}});
// RHS edge is MIN and attached and inside LHS.
// RHS => _____
// LHS => /_____\_____ = ___________
// /_______\____\___ /___________\___
this->checkUnite({{MIN, A}}, {MIN, B}, {{MIN, B}});
// RHS edge is MIN and attached and outsude LHS.
// RHS => __________
// LHS => /______ \ = ___________
// /_______\____\___ /___________\___
this->checkUnite({{MIN, B}}, {MIN, A}, {{MIN, B}});
// RHS intersects right of LHS.
// RHS => ______
// LHS => ___/____ \ = ___________
// ___/__/_____\__\___ ___/___________\___
this->checkUnite({{A, C}}, C, {{A, C}});
this->checkUnite({{A, C}}, {B, D}, {{A, D}});
// RHS intersects left of LHS.
// RHS => ______
// LHS => / ____\___ = ___________
// ___/__/_____\__\___ ___/___________\___
this->checkUnite({{B, D}}, B, {{B, D}});
this->checkUnite({{B, D}}, {A, C}, {{A, D}});
this->checkUnite({{MID, MAX}}, {MIN, MID}, {{MIN, MAX}});
// RHS adjacent to LHS on right.
// RHS => _____
// LHS => ______ / \ = _______________
// _/______\/_______\_ _/_______________\_
this->checkUnite({{A, B - 1}}, B, {{A, B}});
this->checkUnite({{A, C}}, {C + 1, D}, {{A, D}});
this->checkUnite({{MIN, MID}}, {MID + 1, MAX}, {{MIN, MAX}});
// RHS adjacent to LHS on left.
// RHS => _____
// LHS => / \ ______ = _______________
// _/_______\/______\_ _/_______________\_
this->checkUnite({{B + 1, C}}, B, {{B, C}});
this->checkUnite({{B, D}}, {A, B - 1}, {{A, D}});
// RHS adjacent to LHS in between.
// RHS => ___
// LHS => ___ / \ ___ = _______________
// _/___\/_____\/___\_ _/_______________\_
this->checkUnite({{A, MID - 1}, {MID + 1, D}}, MID, {{A, D}});
this->checkUnite({{MIN, A}, {D, MAX}}, {A + 1, D - 1}, {{MIN, MAX}});
// RHS adjacent to LHS on the outside.
// RHS => __ __
// LHS => / \ ___ / \ = _______________
// _/____\/___\/____\_ _/_______________\_
this->checkUnite({{C, C}}, {{A, C - 1}, {C + 1, D}}, {{A, D}});
this->checkUnite({{B, MID}}, {{A, B - 1}, {MID + 1, D}}, {{A, D}});
// RHS wraps two subranges of LHS.
// RHS => ___________
// LHS => / ___ ___ \ = _____________
// __/_/___\_/___\_\__ __/_____________\__
this->checkUnite({{B, B}, {MID, MID}, {C, C}}, {{A, D}}, {{A, D}});
this->checkUnite({{A, B}, {MID, C}}, {{MIN, D}}, {{MIN, D}});
// RHS intersects two subranges of LHS.
// RHS => _________
// LHS => __/__ _\__ = _______________
// _/_/___\____/__\_\_ _/_______________\_
this->checkUnite({{MIN, B}, {C, MAX}}, {{A, D}}, {{MIN, MAX}});
this->checkUnite({{A, MID}, {C, MAX}}, {{B, D}}, {{A, MAX}});
// Multiple intersections.
// clang-format off
// RHS =>
// LHS => /\ /\ = __ __
// _/__\_/__\_/\_/\_/\_ _/__\_/__\_/\_/\_/\_
this->checkUnite({{MID, C}, {C + 2, D - 2}, {D, MAX}},
{{MIN, A}, {A + 2, B}},
{{MIN, A}, {A + 2, B}, {MID, C}, {C + 2, D - 2}, {D, MAX}});
this->checkUnite({{B, B}, {C, C}, {MAX, MAX}},
{{MIN, MIN}, {A, A}},
{{MIN, MIN}, {A, A}, {B, B}, {C, C}, {MAX, MAX}});
// RHS =>
// LHS => /\ /\ = __ __
// _/\_/\_/\__/__\_/__\_ _/\_/\_/\_/__\_/__\_
this->checkUnite({{MIN, A}, {A + 2, B}, {MID, C}},
{{C + 2, D - 2}, {D, MAX}},
{{MIN, A}, {A + 2, B}, {MID, C}, {C + 2, D - 2}, {D, MAX}});
this->checkUnite({{MIN, MIN}, {A, A}, {B, B}},
{{C, C}, {MAX, MAX}},
{{MIN, MIN}, {A, A}, {B, B}, {C, C}, {MAX, MAX}});
// RHS =>
// LHS => _ /\ _ /\ _ /\ =
// _/_\_/__\_/_\_/__\_/_\_/__\_
//
// RSLT => _ __ _ __ _ __
// _/_\_/__\_/_\_/__\_/_\_/__\_
this->checkUnite({{MIN, A}, {B + 2, MID}, {C + 2, D}},
{{A + 2, B}, {MID + 2, C}, {D + 2, MAX}},
{{MIN, A}, {A + 2, B}, {B + 2, MID}, {MID + 2, C}, {C + 2, D}, {D + 2, MAX}});
this->checkUnite({{MIN, MIN}, {B, B}, {D, D}},
{{A, A}, {C, C}, {MAX, MAX}},
{{MIN, MIN}, {A, A}, {B, B}, {C, C}, {D, D}, {MAX, MAX}});
// RHS =>
// LHS => /\ _ /\ _ /\ _ =
// _/__\_/_\_/__\_/_\_/__\_/_\_
//
// RSLT => __ _ __ _ __ _
// _/__\_/_\_/__\_/_\_/__\_/_\_
this->checkUnite({{A + 2, B}, {MID + 2, C}, {D + 2, MAX}},
{{MIN, A}, {B + 2, MID}, {C + 2, D}},
{{MIN, A}, {A + 2, B}, {B + 2, MID}, {MID + 2, C}, {C + 2, D}, {D + 2, MAX}});
this->checkUnite({{A, A}, {C, C}, {MAX, MAX}},
{{MIN, MIN}, {B, B}, {D, D}},
{{MIN, MIN}, {A, A}, {B, B}, {C, C}, {D, D}, {MAX, MAX}});
// RHS => _ __ _
// LHS => /_\ /_ \ _ / \ = ___ ____________
// _/___\_/__\_\/_\/___\_ _/___\_/____________\_
this->checkUnite({{MIN, A}, {B, C}, {D, MAX}},
{{MIN, A}, {B, C - 2}, {C + 1, D - 1}},
{{MIN, A}, {B, MAX}});
this->checkUnite({{A, A}, {B, MID}, {D, D}},
{{A, A}, {B, B}, {MID + 1, D - 1}},
{{A, A}, {B, D}});
// RHS => ___ ___
// LHS => /\ _/_ \_ / _ \ /\ =
// _/\_/__\//__\ /\\_/_/_\_\_/__\_
//
// RSLT => ___________ _____ __
// _/\_/___________\_/_____\_/__\_
this->checkUnite({{MIN, MIN}, {B, MID}, {MID + 1, C}, {C + 4, D - 1}},
{{A, B - 1}, {B + 1, C - 1}, {C + 2, D}, {MAX - 1, MAX}},
{{MIN, MIN}, {A, C}, {C + 2, D}, {MAX - 1, MAX}});
// clang-format on
}
template <typename From, typename To> struct CastType {
using FromType = From;
using ToType = To;
};
template <typename Type>
class RangeSetCastToNoopTest : public RangeSetTest<typename Type::FromType> {};
template <typename Type>
class RangeSetCastToPromotionTest
: public RangeSetTest<typename Type::FromType> {};
template <typename Type>
class RangeSetCastToTruncationTest
: public RangeSetTest<typename Type::FromType> {};
template <typename Type>
class RangeSetCastToConversionTest
: public RangeSetTest<typename Type::FromType> {};
template <typename Type>
class RangeSetCastToPromotionConversionTest
: public RangeSetTest<typename Type::FromType> {};
template <typename Type>
class RangeSetCastToTruncationConversionTest
: public RangeSetTest<typename Type::FromType> {};
using NoopCastTypes =
::testing::Types<CastType<int8_t, int8_t>, CastType<uint8_t, uint8_t>,
CastType<int16_t, int16_t>, CastType<uint16_t, uint16_t>,
CastType<int32_t, int32_t>, CastType<uint32_t, uint32_t>,
CastType<int64_t, int64_t>, CastType<uint64_t, uint64_t>>;
using PromotionCastTypes =
::testing::Types<CastType<int8_t, int16_t>, CastType<int8_t, int32_t>,
CastType<int8_t, int64_t>, CastType<uint8_t, uint16_t>,
CastType<uint8_t, uint32_t>, CastType<uint8_t, uint64_t>,
CastType<int16_t, int32_t>, CastType<int16_t, int64_t>,
CastType<uint16_t, uint32_t>, CastType<uint16_t, uint64_t>,
CastType<int32_t, int64_t>, CastType<uint32_t, uint64_t>>;
using TruncationCastTypes =
::testing::Types<CastType<int16_t, int8_t>, CastType<uint16_t, uint8_t>,
CastType<int32_t, int16_t>, CastType<int32_t, int8_t>,
CastType<uint32_t, uint16_t>, CastType<uint32_t, uint8_t>,
CastType<int64_t, int32_t>, CastType<int64_t, int16_t>,
CastType<int64_t, int8_t>, CastType<uint64_t, uint32_t>,
CastType<uint64_t, uint16_t>, CastType<uint64_t, uint8_t>>;
using ConversionCastTypes =
::testing::Types<CastType<int8_t, uint8_t>, CastType<uint8_t, int8_t>,
CastType<int16_t, uint16_t>, CastType<uint16_t, int16_t>,
CastType<int32_t, uint32_t>, CastType<uint32_t, int32_t>,
CastType<int64_t, uint64_t>, CastType<uint64_t, int64_t>>;
using PromotionConversionCastTypes =
::testing::Types<CastType<int8_t, uint16_t>, CastType<int8_t, uint32_t>,
CastType<int8_t, uint64_t>, CastType<uint8_t, int16_t>,
CastType<uint8_t, int32_t>, CastType<uint8_t, int64_t>,
CastType<int16_t, uint32_t>, CastType<int16_t, uint64_t>,
CastType<uint16_t, int32_t>, CastType<uint16_t, int64_t>,
CastType<int32_t, uint64_t>, CastType<uint32_t, int64_t>>;
using TruncationConversionCastTypes =
::testing::Types<CastType<int16_t, uint8_t>, CastType<uint16_t, int8_t>,
CastType<int32_t, uint16_t>, CastType<int32_t, uint8_t>,
CastType<uint32_t, int16_t>, CastType<uint32_t, int8_t>,
CastType<int64_t, uint32_t>, CastType<int64_t, uint16_t>,
CastType<int64_t, uint8_t>, CastType<uint64_t, int32_t>,
CastType<uint64_t, int16_t>, CastType<uint64_t, int8_t>>;
TYPED_TEST_SUITE(RangeSetCastToNoopTest, NoopCastTypes);
TYPED_TEST_SUITE(RangeSetCastToPromotionTest, PromotionCastTypes);
TYPED_TEST_SUITE(RangeSetCastToTruncationTest, TruncationCastTypes);
TYPED_TEST_SUITE(RangeSetCastToConversionTest, ConversionCastTypes);
TYPED_TEST_SUITE(RangeSetCastToPromotionConversionTest,
PromotionConversionCastTypes);
TYPED_TEST_SUITE(RangeSetCastToTruncationConversionTest,
TruncationConversionCastTypes);
TYPED_TEST(RangeSetCastToNoopTest, RangeSetCastToNoopTest) {
// Just to reduce the verbosity.
using F = typename TypeParam::FromType; // From
using T = typename TypeParam::ToType; // To
using TV = TestValues<F>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
constexpr auto MID = TV::MID;
constexpr auto B = TV::B;
constexpr auto C = TV::C;
// One point
this->template checkCastTo<F, T>({{MIN, MIN}}, {{MIN, MIN}});
this->template checkCastTo<F, T>({{MAX, MAX}}, {{MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}}, {{MID, MID}});
this->template checkCastTo<F, T>({{B, B}}, {{B, B}});
this->template checkCastTo<F, T>({{C, C}}, {{C, C}});
// Two points
this->template checkCastTo<F, T>({{MIN, MIN}, {MAX, MAX}},
{{MIN, MIN}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MIN, MIN}, {B, B}}, {{MIN, MIN}, {B, B}});
this->template checkCastTo<F, T>({{MID, MID}, {MAX, MAX}},
{{MID, MID}, {MAX, MAX}});
this->template checkCastTo<F, T>({{C, C}, {MAX, MAX}}, {{C, C}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}, {C, C}}, {{MID, MID}, {C, C}});
this->template checkCastTo<F, T>({{B, B}, {MID, MID}}, {{B, B}, {MID, MID}});
this->template checkCastTo<F, T>({{B, B}, {C, C}}, {{B, B}, {C, C}});
// One range
this->template checkCastTo<F, T>({{MIN, MAX}}, {{MIN, MAX}});
this->template checkCastTo<F, T>({{MIN, MID}}, {{MIN, MID}});
this->template checkCastTo<F, T>({{MID, MAX}}, {{MID, MAX}});
this->template checkCastTo<F, T>({{B, MAX}}, {{B, MAX}});
this->template checkCastTo<F, T>({{C, MAX}}, {{C, MAX}});
this->template checkCastTo<F, T>({{MIN, C}}, {{MIN, C}});
this->template checkCastTo<F, T>({{MIN, B}}, {{MIN, B}});
this->template checkCastTo<F, T>({{B, C}}, {{B, C}});
// Two ranges
this->template checkCastTo<F, T>({{MIN, B}, {C, MAX}}, {{MIN, B}, {C, MAX}});
this->template checkCastTo<F, T>({{B, MID}, {C, MAX}}, {{B, MID}, {C, MAX}});
this->template checkCastTo<F, T>({{MIN, B}, {MID, C}}, {{MIN, B}, {MID, C}});
}
TYPED_TEST(RangeSetCastToPromotionTest, Test) {
// Just to reduce the verbosity.
using F = typename TypeParam::FromType; // From
using T = typename TypeParam::ToType; // To
using TV = TestValues<F>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
constexpr auto MID = TV::MID;
constexpr auto B = TV::B;
constexpr auto C = TV::C;
// One point
this->template checkCastTo<F, T>({{MIN, MIN}}, {{MIN, MIN}});
this->template checkCastTo<F, T>({{MAX, MAX}}, {{MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}}, {{MID, MID}});
this->template checkCastTo<F, T>({{B, B}}, {{B, B}});
this->template checkCastTo<F, T>({{C, C}}, {{C, C}});
// Two points
this->template checkCastTo<F, T>({{MIN, MIN}, {MAX, MAX}},
{{MIN, MIN}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MIN, MIN}, {B, B}}, {{MIN, MIN}, {B, B}});
this->template checkCastTo<F, T>({{MID, MID}, {MAX, MAX}},
{{MID, MID}, {MAX, MAX}});
this->template checkCastTo<F, T>({{C, C}, {MAX, MAX}}, {{C, C}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}, {C, C}}, {{MID, MID}, {C, C}});
this->template checkCastTo<F, T>({{B, B}, {MID, MID}}, {{B, B}, {MID, MID}});
this->template checkCastTo<F, T>({{B, B}, {C, C}}, {{B, B}, {C, C}});
// One range
this->template checkCastTo<F, T>({{MIN, MAX}}, {{MIN, MAX}});
this->template checkCastTo<F, T>({{MIN, MID}}, {{MIN, MID}});
this->template checkCastTo<F, T>({{MID, MAX}}, {{MID, MAX}});
this->template checkCastTo<F, T>({{B, MAX}}, {{B, MAX}});
this->template checkCastTo<F, T>({{C, MAX}}, {{C, MAX}});
this->template checkCastTo<F, T>({{MIN, C}}, {{MIN, C}});
this->template checkCastTo<F, T>({{MIN, B}}, {{MIN, B}});
this->template checkCastTo<F, T>({{B, C}}, {{B, C}});
// Two ranges
this->template checkCastTo<F, T>({{MIN, B}, {C, MAX}}, {{MIN, B}, {C, MAX}});
this->template checkCastTo<F, T>({{B, MID}, {C, MAX}}, {{B, MID}, {C, MAX}});
this->template checkCastTo<F, T>({{MIN, B}, {MID, C}}, {{MIN, B}, {MID, C}});
}
TYPED_TEST(RangeSetCastToTruncationTest, Test) {
// Just to reduce the verbosity.
using F = typename TypeParam::FromType; // From
using T = typename TypeParam::ToType; // To
using TV = TestValues<F>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
constexpr auto MID = TV::MID;
constexpr auto B = TV::B;
constexpr auto C = TV::C;
// One point
//
// NOTE: We can't use ToMIN, ToMAX, ... everywhere. That would be incorrect:
// int16(-32768, 32767) -> int8(-128, 127),
// aka (MIN, MAX) -> (ToMIN, ToMAX) // OK.
// int16(-32768, -32768) -> int8(-128, -128),
// aka (MIN, MIN) -> (ToMIN, ToMIN) // NOK.
// int16(-32768,-32768) -> int8(0, 0),
// aka (MIN, MIN) -> ((int8)MIN, (int8)MIN) // OK.
this->template checkCastTo<F, T>({{MIN, MIN}}, {{MIN, MIN}});
this->template checkCastTo<F, T>({{MAX, MAX}}, {{MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}}, {{MID, MID}});
this->template checkCastTo<F, T>({{B, B}}, {{B, B}});
this->template checkCastTo<F, T>({{C, C}}, {{C, C}});
// Two points
// Use `if constexpr` here.
if (is_signed_v<F>) {
this->template checkCastTo<F, T>({{MIN, MIN}, {MAX, MAX}}, {{MAX, MIN}});
this->template checkCastTo<F, T>({{MID, MID}, {MAX, MAX}}, {{MAX, MID}});
} else {
this->template checkCastTo<F, T>({{MIN, MIN}, {MAX, MAX}},
{{MIN, MIN}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}, {MAX, MAX}},
{{MID, MID}, {MAX, MAX}});
}
this->template checkCastTo<F, T>({{MIN, MIN}, {B, B}}, {{MIN, MIN}, {B, B}});
this->template checkCastTo<F, T>({{C, C}, {MAX, MAX}}, {{C, C}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}, {C, C}}, {{MID, MID}, {C, C}});
this->template checkCastTo<F, T>({{B, B}, {MID, MID}}, {{B, B}, {MID, MID}});
this->template checkCastTo<F, T>({{B, B}, {C, C}}, {{B, B}, {C, C}});
// One range
constexpr auto ToMIN = TestValues<T>::MIN;
constexpr auto ToMAX = TestValues<T>::MAX;
this->template checkCastTo<F, T>({{MIN, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MIN, MID}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MID, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{B, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{C, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MIN, C}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MIN, B}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{B, C}}, {{ToMIN, ToMAX}});
// Two ranges
this->template checkCastTo<F, T>({{MIN, B}, {C, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{B, MID}, {C, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MIN, B}, {MID, C}}, {{ToMIN, ToMAX}});
constexpr auto XAAA = TV::XAAA;
constexpr auto X555 = TV::X555;
constexpr auto ZA = TV::template XAAATruncZeroOf<T>;
constexpr auto Z5 = TV::template X555TruncZeroOf<T>;
this->template checkCastTo<F, T>({{XAAA, ZA}, {X555, Z5}},
{{ToMIN, 0}, {X555, ToMAX}});
// Use `if constexpr` here.
if (is_signed_v<F>) {
// One range
this->template checkCastTo<F, T>({{XAAA, ZA}}, {{XAAA, 0}});
// Two ranges
this->template checkCastTo<F, T>({{XAAA, ZA}, {1, 42}}, {{XAAA, 42}});
} else {
// One range
this->template checkCastTo<F, T>({{XAAA, ZA}}, {{0, 0}, {XAAA, ToMAX}});
// Two ranges
this->template checkCastTo<F, T>({{1, 42}, {XAAA, ZA}},
{{0, 42}, {XAAA, ToMAX}});
}
constexpr auto FromA = TV::FromA;
constexpr auto ToA = TV::ToA;
constexpr auto FromB = TV::FromB;
constexpr auto ToB = TV::ToB;
// int16 -> int8
// (0x00'01, 0x00'05)U(0xFF'01, 0xFF'05) casts to
// (0x01, 0x05)U(0x01, 0x05) unites to
// (0x01, 0x05)
this->template checkCastTo<F, T>({{FromA, ToA}, {FromB, ToB}},
{{FromA, ToA}});
}
TYPED_TEST(RangeSetCastToConversionTest, Test) {
// Just to reduce the verbosity.
using F = typename TypeParam::FromType; // From
using T = typename TypeParam::ToType; // To
using TV = TestValues<F>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
constexpr auto MID = TV::MID;
constexpr auto B = TV::B;
constexpr auto C = TV::C;
// One point
this->template checkCastTo<F, T>({{MIN, MIN}}, {{MIN, MIN}});
this->template checkCastTo<F, T>({{MAX, MAX}}, {{MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}}, {{MID, MID}});
this->template checkCastTo<F, T>({{B, B}}, {{B, B}});
this->template checkCastTo<F, T>({{C, C}}, {{C, C}});
// Two points
this->template checkCastTo<F, T>({{MIN, MIN}, {MAX, MAX}}, {{MAX, MIN}});
this->template checkCastTo<F, T>({{MID, MID}, {MAX, MAX}},
{{MID, MID}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MIN, MIN}, {B, B}}, {{MIN, MIN}, {B, B}});
this->template checkCastTo<F, T>({{C, C}, {MAX, MAX}}, {{C, C}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}, {C, C}}, {{MID, MID}, {C, C}});
this->template checkCastTo<F, T>({{B, B}, {MID, MID}}, {{B, B}, {MID, MID}});
this->template checkCastTo<F, T>({{B, B}, {C, C}}, {{B, B}, {C, C}});
// One range
constexpr auto ToMIN = TestValues<T>::MIN;
constexpr auto ToMAX = TestValues<T>::MAX;
this->template checkCastTo<F, T>({{MIN, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MIN, MID}},
{{ToMIN, ToMIN}, {MIN, ToMAX}});
this->template checkCastTo<F, T>({{MID, MAX}}, {{MID, MAX}});
this->template checkCastTo<F, T>({{B, MAX}}, {{ToMIN, MAX}, {B, ToMAX}});
this->template checkCastTo<F, T>({{C, MAX}}, {{C, MAX}});
this->template checkCastTo<F, T>({{MIN, C}}, {{ToMIN, C}, {MIN, ToMAX}});
this->template checkCastTo<F, T>({{MIN, B}}, {{MIN, B}});
this->template checkCastTo<F, T>({{B, C}}, {{ToMIN, C}, {B, ToMAX}});
// Two ranges
this->template checkCastTo<F, T>({{MIN, B}, {C, MAX}}, {{C, B}});
this->template checkCastTo<F, T>({{B, MID}, {C, MAX}},
{{MID, MID}, {C, MAX}, {B, ToMAX}});
this->template checkCastTo<F, T>({{MIN, B}, {MID, C}}, {{MID, C}, {MIN, B}});
}
TYPED_TEST(RangeSetCastToPromotionConversionTest, Test) {
// Just to reduce the verbosity.
using F = typename TypeParam::FromType; // From
using T = typename TypeParam::ToType; // To
using TV = TestValues<F>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
constexpr auto MID = TV::MID;
constexpr auto B = TV::B;
constexpr auto C = TV::C;
// One point
this->template checkCastTo<F, T>({{MIN, MIN}}, {{MIN, MIN}});
this->template checkCastTo<F, T>({{MAX, MAX}}, {{MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}}, {{MID, MID}});
this->template checkCastTo<F, T>({{B, B}}, {{B, B}});
this->template checkCastTo<F, T>({{C, C}}, {{C, C}});
// Two points
this->template checkCastTo<F, T>({{MIN, MIN}, {MAX, MAX}},
{{MAX, MAX}, {MIN, MIN}});
this->template checkCastTo<F, T>({{MIN, MIN}, {B, B}}, {{MIN, MIN}, {B, B}});
this->template checkCastTo<F, T>({{MID, MID}, {MAX, MAX}},
{{MID, MID}, {MAX, MAX}});
this->template checkCastTo<F, T>({{C, C}, {MAX, MAX}}, {{C, C}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}, {C, C}}, {{MID, MID}, {C, C}});
this->template checkCastTo<F, T>({{B, B}, {MID, MID}}, {{B, B}, {MID, MID}});
this->template checkCastTo<F, T>({{B, B}, {C, C}}, {{B, B}, {C, C}});
// Use `if constexpr` here.
if (is_signed_v<F>) {
// One range
this->template checkCastTo<F, T>({{MIN, MAX}}, {{0, MAX}, {MIN, -1}});
this->template checkCastTo<F, T>({{MIN, MID}}, {{0, 0}, {MIN, -1}});
this->template checkCastTo<F, T>({{MID, MAX}}, {{0, MAX}});
this->template checkCastTo<F, T>({{B, MAX}}, {{0, MAX}, {B, -1}});
this->template checkCastTo<F, T>({{C, MAX}}, {{C, MAX}});
this->template checkCastTo<F, T>({{MIN, C}}, {{0, C}, {MIN, -1}});
this->template checkCastTo<F, T>({{MIN, B}}, {{MIN, B}});
this->template checkCastTo<F, T>({{B, C}}, {{0, C}, {B, -1}});
// Two ranges
this->template checkCastTo<F, T>({{MIN, B}, {C, MAX}},
{{C, MAX}, {MIN, B}});
this->template checkCastTo<F, T>({{B, MID}, {C, MAX}},
{{0, 0}, {C, MAX}, {B, -1}});
this->template checkCastTo<F, T>({{MIN, B}, {MID, C}}, {{0, C}, {MIN, B}});
} else {
// One range
this->template checkCastTo<F, T>({{MIN, MAX}}, {{MIN, MAX}});
this->template checkCastTo<F, T>({{MIN, MID}}, {{MIN, MID}});
this->template checkCastTo<F, T>({{MID, MAX}}, {{MID, MAX}});
this->template checkCastTo<F, T>({{B, MAX}}, {{B, MAX}});
this->template checkCastTo<F, T>({{C, MAX}}, {{C, MAX}});
this->template checkCastTo<F, T>({{MIN, C}}, {{MIN, C}});
this->template checkCastTo<F, T>({{MIN, B}}, {{MIN, B}});
this->template checkCastTo<F, T>({{B, C}}, {{B, C}});
// Two ranges
this->template checkCastTo<F, T>({{MIN, B}, {C, MAX}},
{{MIN, B}, {C, MAX}});
this->template checkCastTo<F, T>({{B, MID}, {C, MAX}},
{{B, MID}, {C, MAX}});
this->template checkCastTo<F, T>({{MIN, B}, {MID, C}},
{{MIN, B}, {MID, C}});
}
}
TYPED_TEST(RangeSetCastToTruncationConversionTest, Test) {
// Just to reduce the verbosity.
using F = typename TypeParam::FromType; // From
using T = typename TypeParam::ToType; // To
using TV = TestValues<F>;
constexpr auto MIN = TV::MIN;
constexpr auto MAX = TV::MAX;
constexpr auto MID = TV::MID;
constexpr auto B = TV::B;
constexpr auto C = TV::C;
// One point
this->template checkCastTo<F, T>({{MIN, MIN}}, {{MIN, MIN}});
this->template checkCastTo<F, T>({{MAX, MAX}}, {{MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}}, {{MID, MID}});
this->template checkCastTo<F, T>({{B, B}}, {{B, B}});
this->template checkCastTo<F, T>({{C, C}}, {{C, C}});
// Two points
// Use `if constexpr` here.
if (is_signed_v<F>) {
this->template checkCastTo<F, T>({{MIN, MIN}, {MAX, MAX}},
{{MIN, MIN}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}, {MAX, MAX}},
{{MID, MID}, {MAX, MAX}});
} else {
this->template checkCastTo<F, T>({{MIN, MIN}, {MAX, MAX}}, {{MAX, MIN}});
this->template checkCastTo<F, T>({{MID, MID}, {MAX, MAX}}, {{MAX, MIN}});
}
this->template checkCastTo<F, T>({{MIN, MIN}, {B, B}}, {{MIN, MIN}, {B, B}});
this->template checkCastTo<F, T>({{C, C}, {MAX, MAX}}, {{C, C}, {MAX, MAX}});
this->template checkCastTo<F, T>({{MID, MID}, {C, C}}, {{MID, MID}, {C, C}});
this->template checkCastTo<F, T>({{B, B}, {MID, MID}}, {{B, B}, {MID, MID}});
this->template checkCastTo<F, T>({{B, B}, {C, C}}, {{B, B}, {C, C}});
// One range
constexpr auto ToMIN = TestValues<T>::MIN;
constexpr auto ToMAX = TestValues<T>::MAX;
this->template checkCastTo<F, T>({{MIN, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MIN, MID}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MID, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{B, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{C, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MIN, C}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MIN, B}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{B, C}}, {{ToMIN, ToMAX}});
// Two ranges
this->template checkCastTo<F, T>({{MIN, B}, {C, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{B, MID}, {C, MAX}}, {{ToMIN, ToMAX}});
this->template checkCastTo<F, T>({{MIN, B}, {MID, C}}, {{ToMIN, ToMAX}});
constexpr auto XAAA = TV::XAAA;
constexpr auto X555 = TV::X555;
constexpr auto ZA = TV::template XAAATruncZeroOf<T>;
constexpr auto Z5 = TV::template X555TruncZeroOf<T>;
this->template checkCastTo<F, T>({{XAAA, ZA}, {X555, Z5}},
{{ToMIN, 0}, {X555, ToMAX}});
// Use `if constexpr` here.
if (is_signed_v<F>) {
// One range
this->template checkCastTo<F, T>({{XAAA, ZA}}, {{0, 0}, {XAAA, ToMAX}});
// Two ranges
this->template checkCastTo<F, T>({{XAAA, ZA}, {1, 42}},
{{0, 42}, {XAAA, ToMAX}});
} else {
// One range
this->template checkCastTo<F, T>({{XAAA, ZA}}, {{XAAA, 0}});
// Two ranges
this->template checkCastTo<F, T>({{1, 42}, {XAAA, ZA}}, {{XAAA, 42}});
}
constexpr auto FromA = TV::FromA;
constexpr auto ToA = TV::ToA;
constexpr auto FromB = TV::FromB;
constexpr auto ToB = TV::ToB;
this->template checkCastTo<F, T>({{FromA, ToA}, {FromB, ToB}},
{{FromA, ToA}});
}
} // namespace
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