private static void ReadStructFieldByFieldBE()
{
Span <byte> spanBE = TestHelpers.GetSpanBE();
var readStruct = new TestHelpers.TestStructExplicit();
foreach (var iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
readStruct = new TestHelpers.TestStructExplicit
{
S0 = ReadInt16BigEndian(spanBE),
I0 = ReadInt32BigEndian(spanBE.Slice(2)),
L0 = ReadInt64BigEndian(spanBE.Slice(6)),
US0 = ReadUInt16BigEndian(spanBE.Slice(14)),
UI0 = ReadUInt32BigEndian(spanBE.Slice(16)),
UL0 = ReadUInt64BigEndian(spanBE.Slice(20)),
S1 = ReadInt16BigEndian(spanBE.Slice(28)),
I1 = ReadInt32BigEndian(spanBE.Slice(30)),
L1 = ReadInt64BigEndian(spanBE.Slice(34)),
US1 = ReadUInt16BigEndian(spanBE.Slice(42)),
UI1 = ReadUInt32BigEndian(spanBE.Slice(44)),
UL1 = ReadUInt64BigEndian(spanBE.Slice(48))
};
}
}
}
Assert.Equal(TestHelpers.testExplicitStruct, readStruct);
}
private static void ReadStructFieldByFieldUsingBitConverterLE()
{
Span <byte> spanLE = TestHelpers.GetSpanLE();
byte[] arrayLE = spanLE.ToArray();
var readStruct = new TestHelpers.TestStructExplicit();
foreach (var iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
readStruct = new TestHelpers.TestStructExplicit
{
S0 = BitConverter.ToInt16(arrayLE, 0),
I0 = BitConverter.ToInt32(arrayLE, 2),
L0 = BitConverter.ToInt64(arrayLE, 6),
US0 = BitConverter.ToUInt16(arrayLE, 14),
UI0 = BitConverter.ToUInt32(arrayLE, 16),
UL0 = BitConverter.ToUInt64(arrayLE, 20),
S1 = BitConverter.ToInt16(arrayLE, 28),
I1 = BitConverter.ToInt32(arrayLE, 30),
L1 = BitConverter.ToInt64(arrayLE, 34),
US1 = BitConverter.ToUInt16(arrayLE, 42),
UI1 = BitConverter.ToUInt32(arrayLE, 44),
UL1 = BitConverter.ToUInt64(arrayLE, 48),
};
}
}
}
Assert.Equal(TestHelpers.testExplicitStruct, readStruct);
}
private static void ReadStructAndReverseLE()
{
Span <byte> spanLE = TestHelpers.GetSpanLE();
var readStruct = new TestHelpers.TestStructExplicit();
foreach (var iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
readStruct = ReadMachineEndian <TestHelpers.TestStructExplicit>(spanLE);
if (!BitConverter.IsLittleEndian)
{
readStruct.S0 = ReverseEndianness(readStruct.S0);
readStruct.I0 = ReverseEndianness(readStruct.I0);
readStruct.L0 = ReverseEndianness(readStruct.L0);
readStruct.US0 = ReverseEndianness(readStruct.US0);
readStruct.UI0 = ReverseEndianness(readStruct.UI0);
readStruct.UL0 = ReverseEndianness(readStruct.UL0);
readStruct.S1 = ReverseEndianness(readStruct.S1);
readStruct.I1 = ReverseEndianness(readStruct.I1);
readStruct.L1 = ReverseEndianness(readStruct.L1);
readStruct.US1 = ReverseEndianness(readStruct.US1);
readStruct.UI1 = ReverseEndianness(readStruct.UI1);
readStruct.UL1 = ReverseEndianness(readStruct.UL1);
}
}
}
}
Assert.Equal(TestHelpers.testExplicitStruct, readStruct);
}
private static void ReadStructFieldByFieldUsingBitConverterBE()
{
Span <byte> spanBE = TestHelpers.GetSpanBE();
byte[] arrayBE = spanBE.ToArray();
var readStruct = new TestHelpers.TestStructExplicit();
foreach (var iteration in Benchmark.Iterations)
{
using (iteration.StartMeasurement())
{
for (int i = 0; i < Benchmark.InnerIterationCount; i++)
{
readStruct = new TestHelpers.TestStructExplicit
{
S0 = BitConverter.ToInt16(arrayBE, 0),
I0 = BitConverter.ToInt32(arrayBE, 2),
L0 = BitConverter.ToInt64(arrayBE, 6),
US0 = BitConverter.ToUInt16(arrayBE, 14),
UI0 = BitConverter.ToUInt32(arrayBE, 16),
UL0 = BitConverter.ToUInt64(arrayBE, 20),
S1 = BitConverter.ToInt16(arrayBE, 28),
I1 = BitConverter.ToInt32(arrayBE, 30),
L1 = BitConverter.ToInt64(arrayBE, 34),
US1 = BitConverter.ToUInt16(arrayBE, 42),
UI1 = BitConverter.ToUInt32(arrayBE, 44),
UL1 = BitConverter.ToUInt64(arrayBE, 48),
};
if (BitConverter.IsLittleEndian)
{
readStruct.S0 = ReverseEndianness(readStruct.S0);
readStruct.I0 = ReverseEndianness(readStruct.I0);
readStruct.L0 = ReverseEndianness(readStruct.L0);
readStruct.US0 = ReverseEndianness(readStruct.US0);
readStruct.UI0 = ReverseEndianness(readStruct.UI0);
readStruct.UL0 = ReverseEndianness(readStruct.UL0);
readStruct.S1 = ReverseEndianness(readStruct.S1);
readStruct.I1 = ReverseEndianness(readStruct.I1);
readStruct.L1 = ReverseEndianness(readStruct.L1);
readStruct.US1 = ReverseEndianness(readStruct.US1);
readStruct.UI1 = ReverseEndianness(readStruct.UI1);
readStruct.UL1 = ReverseEndianness(readStruct.UL1);
}
}
}
}
Assert.Equal(TestHelpers.s_testExplicitStruct, readStruct);
}
public void ReadingStructFieldByFieldOrReadAndReverseEndianness()
{
Assert.True(BitConverter.IsLittleEndian);
Span <byte> spanBE = new byte[Unsafe.SizeOf <TestHelpers.TestStructExplicit>()];
var testExplicitStruct = new TestHelpers.TestStructExplicit
{
S0 = short.MaxValue,
I0 = int.MaxValue,
L0 = long.MaxValue,
US0 = ushort.MaxValue,
UI0 = uint.MaxValue,
UL0 = ulong.MaxValue,
S1 = short.MinValue,
I1 = int.MinValue,
L1 = long.MinValue,
US1 = ushort.MinValue,
UI1 = uint.MinValue,
UL1 = ulong.MinValue
};
WriteInt16BigEndian(spanBE, testExplicitStruct.S0);
WriteInt32BigEndian(spanBE.Slice(2), testExplicitStruct.I0);
WriteInt64BigEndian(spanBE.Slice(6), testExplicitStruct.L0);
WriteUInt16BigEndian(spanBE.Slice(14), testExplicitStruct.US0);
WriteUInt32BigEndian(spanBE.Slice(16), testExplicitStruct.UI0);
WriteUInt64BigEndian(spanBE.Slice(20), testExplicitStruct.UL0);
WriteInt16BigEndian(spanBE.Slice(28), testExplicitStruct.S1);
WriteInt32BigEndian(spanBE.Slice(30), testExplicitStruct.I1);
WriteInt64BigEndian(spanBE.Slice(34), testExplicitStruct.L1);
WriteUInt16BigEndian(spanBE.Slice(42), testExplicitStruct.US1);
WriteUInt32BigEndian(spanBE.Slice(44), testExplicitStruct.UI1);
WriteUInt64BigEndian(spanBE.Slice(48), testExplicitStruct.UL1);
Assert.Equal(56, spanBE.Length);
ReadOnlySpan <byte> readOnlySpanBE = new ReadOnlySpan <byte>(spanBE.ToArray());
var readStructAndReverse = ReadMachineEndian <TestHelpers.TestStructExplicit>(spanBE);
if (BitConverter.IsLittleEndian)
{
readStructAndReverse.S0 = ReverseEndianness(readStructAndReverse.S0);
readStructAndReverse.I0 = ReverseEndianness(readStructAndReverse.I0);
readStructAndReverse.L0 = ReverseEndianness(readStructAndReverse.L0);
readStructAndReverse.US0 = ReverseEndianness(readStructAndReverse.US0);
readStructAndReverse.UI0 = ReverseEndianness(readStructAndReverse.UI0);
readStructAndReverse.UL0 = ReverseEndianness(readStructAndReverse.UL0);
readStructAndReverse.S1 = ReverseEndianness(readStructAndReverse.S1);
readStructAndReverse.I1 = ReverseEndianness(readStructAndReverse.I1);
readStructAndReverse.L1 = ReverseEndianness(readStructAndReverse.L1);
readStructAndReverse.US1 = ReverseEndianness(readStructAndReverse.US1);
readStructAndReverse.UI1 = ReverseEndianness(readStructAndReverse.UI1);
readStructAndReverse.UL1 = ReverseEndianness(readStructAndReverse.UL1);
}
var readStructFieldByField = new TestHelpers.TestStructExplicit
{
S0 = ReadInt16BigEndian(spanBE),
I0 = ReadInt32BigEndian(spanBE.Slice(2)),
L0 = ReadInt64BigEndian(spanBE.Slice(6)),
US0 = ReadUInt16BigEndian(spanBE.Slice(14)),
UI0 = ReadUInt32BigEndian(spanBE.Slice(16)),
UL0 = ReadUInt64BigEndian(spanBE.Slice(20)),
S1 = ReadInt16BigEndian(spanBE.Slice(28)),
I1 = ReadInt32BigEndian(spanBE.Slice(30)),
L1 = ReadInt64BigEndian(spanBE.Slice(34)),
US1 = ReadUInt16BigEndian(spanBE.Slice(42)),
UI1 = ReadUInt32BigEndian(spanBE.Slice(44)),
UL1 = ReadUInt64BigEndian(spanBE.Slice(48))
};
var readStructAndReverseFromReadOnlySpan = ReadMachineEndian <TestHelpers.TestStructExplicit>(readOnlySpanBE);
if (BitConverter.IsLittleEndian)
{
readStructAndReverseFromReadOnlySpan.S0 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.S0);
readStructAndReverseFromReadOnlySpan.I0 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.I0);
readStructAndReverseFromReadOnlySpan.L0 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.L0);
readStructAndReverseFromReadOnlySpan.US0 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.US0);
readStructAndReverseFromReadOnlySpan.UI0 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.UI0);
readStructAndReverseFromReadOnlySpan.UL0 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.UL0);
readStructAndReverseFromReadOnlySpan.S1 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.S1);
readStructAndReverseFromReadOnlySpan.I1 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.I1);
readStructAndReverseFromReadOnlySpan.L1 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.L1);
readStructAndReverseFromReadOnlySpan.US1 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.US1);
readStructAndReverseFromReadOnlySpan.UI1 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.UI1);
readStructAndReverseFromReadOnlySpan.UL1 = ReverseEndianness(readStructAndReverseFromReadOnlySpan.UL1);
}
var readStructFieldByFieldFromReadOnlySpan = new TestHelpers.TestStructExplicit
{
S0 = ReadInt16BigEndian(readOnlySpanBE),
I0 = ReadInt32BigEndian(readOnlySpanBE.Slice(2)),
L0 = ReadInt64BigEndian(readOnlySpanBE.Slice(6)),
US0 = ReadUInt16BigEndian(readOnlySpanBE.Slice(14)),
UI0 = ReadUInt32BigEndian(readOnlySpanBE.Slice(16)),
UL0 = ReadUInt64BigEndian(readOnlySpanBE.Slice(20)),
S1 = ReadInt16BigEndian(readOnlySpanBE.Slice(28)),
I1 = ReadInt32BigEndian(readOnlySpanBE.Slice(30)),
L1 = ReadInt64BigEndian(readOnlySpanBE.Slice(34)),
US1 = ReadUInt16BigEndian(readOnlySpanBE.Slice(42)),
UI1 = ReadUInt32BigEndian(readOnlySpanBE.Slice(44)),
UL1 = ReadUInt64BigEndian(readOnlySpanBE.Slice(48))
};
Assert.Equal(testExplicitStruct, readStructAndReverse);
Assert.Equal(testExplicitStruct, readStructFieldByField);
Assert.Equal(testExplicitStruct, readStructAndReverseFromReadOnlySpan);
Assert.Equal(testExplicitStruct, readStructFieldByFieldFromReadOnlySpan);
}
