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AK: Add optional explicit cast to underlying type to DistinctNumeric

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Sam Atkins 2022-11-10 16:20:07 +00:00 • committed by Ali Mohammad Pur
parent c33eae24f9
commit cf046dbfdb
2 changed files with 31 additions and 1 deletions
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21
Tests/AK/TestDistinctNumeric.cpp
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@ -41,7 +41,8 @@ AK_TYPEDEF_DISTINCT_NUMERIC_GENERAL(int, BoolNumeric, CastToBool);
AK_TYPEDEF_DISTINCT_NUMERIC_GENERAL(int, FlagsNumeric, Flags);
AK_TYPEDEF_DISTINCT_NUMERIC_GENERAL(int, ShiftNumeric, Shift);
AK_TYPEDEF_DISTINCT_NUMERIC_GENERAL(int, ArithNumeric, Arithmetic);
AK_TYPEDEF_DISTINCT_NUMERIC_GENERAL(int, GeneralNumeric, Arithmetic, CastToBool, Comparison, Flags, Increment, Shift);
AK_TYPEDEF_DISTINCT_NUMERIC_GENERAL(int, UnderlyingNumeric, CastToUnderlying);
AK_TYPEDEF_DISTINCT_NUMERIC_GENERAL(int, GeneralNumeric, Arithmetic, CastToBool, CastToUnderlying, Comparison, Flags, Increment, Shift);
TEST_CASE(address_identity)
{
@ -105,6 +106,14 @@ TEST_CASE(operator_bool)
EXPECT_EQ(!c, false);
}
TEST_CASE(operator_underlying)
{
UnderlyingNumeric a = 0;
UnderlyingNumeric b = 42;
EXPECT_EQ(static_cast<int>(a), 0);
EXPECT_EQ(static_cast<int>(b), 42);
}
TEST_CASE(operator_flags)
{
FlagsNumeric a = 0;
@ -216,6 +225,9 @@ TEST_CASE(composability)
EXPECT_EQ(-b, GeneralNumeric(-1));
EXPECT_EQ(a + b, b);
EXPECT_EQ(b * GeneralNumeric(42), GeneralNumeric(42));
// Underlying
EXPECT_EQ(static_cast<int>(a), 0);
EXPECT_EQ(static_cast<int>(b), 1);
}
/*
@ -268,6 +280,13 @@ TEST_CASE(negative_arith)
// error: static assertion failed: 'a+b' is only available for DistinctNumeric types with 'Arithmetic'.
}
TEST_CASE(negative_underlying)
{
BareNumeric a = 12;
[[maybe_unused]] int res = static_cast<int>(a);
// error: static assertion failed: Cast to underlying type is only available for DistinctNumeric types with 'CastToUnderlying'.
}
TEST_CASE(negative_incompatible)
{
GeneralNumeric a = 12;