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[Refactor] Use collection expressions.

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This commit is contained in:
Natalia Portillo
2024-05-01 04:39:38 +01:00
parent f7ca79b09e
commit 134ce7041e
667 changed files with 12936 additions and 13750 deletions
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101
Aaru.Compression/cuetools.net/CUETools.Codecs/CRC/CRC16CCITT.cs
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@@ -1,51 +1,54 @@
namespace CUETools.Codecs
namespace CUETools.Codecs;
public enum InitialCrcValue
{
public enum InitialCrcValue { Zeros, NonZero1 = 0xffff, NonZero2 = 0x1D0F }
public class Crc16Ccitt
{
const ushort poly = 4129;
ushort[] table = new ushort[256];
ushort initialValue = 0;
public ushort ComputeChecksum(byte[] bytes, int pos, int count)
{
ushort crc = this.initialValue;
for (int i = pos; i < pos + count; i++)
{
crc = (ushort)((crc << 8) ^ table[((crc >> 8) ^ (0xff & bytes[i]))]);
}
return crc;
}
public byte[] ComputeChecksumBytes(byte[] bytes, int pos, int count)
{
ushort crc = ComputeChecksum(bytes, pos, count);
return new byte[] { (byte)(crc >> 8), (byte)(crc & 0x00ff) };
}
public Crc16Ccitt(InitialCrcValue initialValue)
{
this.initialValue = (ushort)initialValue;
ushort temp, a;
for (int i = 0; i < table.Length; i++)
{
temp = 0;
a = (ushort)(i << 8);
for (int j = 0; j < 8; j++)
{
if (((temp ^ a) & 0x8000) != 0)
{
temp = (ushort)((temp << 1) ^ poly);
}
else
{
temp <<= 1;
}
a <<= 1;
}
table[i] = temp;
}
}
}
Zeros,
NonZero1 = 0xffff,
NonZero2 = 0x1D0F
}
public class Crc16Ccitt
{
const ushort poly = 4129;
readonly ushort initialValue;
readonly ushort[] table = new ushort[256];
public Crc16Ccitt(InitialCrcValue initialValue)
{
this.initialValue = (ushort)initialValue;
ushort temp, a;
for(var i = 0; i < table.Length; i++)
{
temp = 0;
a = (ushort)(i << 8);
for(var j = 0; j < 8; j++)
{
if(((temp ^ a) & 0x8000) != 0)
temp = (ushort)(temp << 1 ^ poly);
else
temp <<= 1;
a <<= 1;
}
table[i] = temp;
}
}
public ushort ComputeChecksum(byte[] bytes, int pos, int count)
{
ushort crc = initialValue;
for(int i = pos; i < pos + count; i++) crc = (ushort)(crc << 8 ^ table[crc >> 8 ^ 0xff & bytes[i]]);
return crc;
}
public byte[] ComputeChecksumBytes(byte[] bytes, int pos, int count)
{
ushort crc = ComputeChecksum(bytes, pos, count);
return [(byte)(crc >> 8), (byte)(crc & 0x00ff)];
}
}