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Use Array.Resize instead of creating new array and using Array.Copy to copy data over.

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This commit is contained in:
drieseng
2016-05-21 18:55:32 +02:00
parent 9c9d9f3faa
commit 73d343f630
1 changed files with 16 additions and 30 deletions
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src/Renci.SshNet/Common/BigInteger.cs
+16 -30
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@@ -487,7 +487,7 @@ namespace Renci.SshNet.Common
borrow = (uint)(sub >> 32) & 0x1u;
if ((~word & storeMask) == 0)
_data = Resize(_data, _data.Length - 1);
Array.Resize(ref _data, _data.Length - 1);
else
_data[_data.Length - 1] = ~word & storeMask;
}
@@ -1210,7 +1210,7 @@ namespace Renci.SshNet.Common
int m;
for (m = res.Length - 1; m >= 0 && res[m] == 0; --m) ;
if (m < res.Length - 1)
res = Resize(res, m + 1);
Array.Resize(ref res, m + 1);
return new BigInteger((short) (left._sign*right._sign), res);
}
@@ -1242,7 +1242,7 @@ namespace Renci.SshNet.Common
if (i == -1)
return Zero;
if (i < quotient.Length - 1)
quotient = Resize(quotient, i + 1);
Array.Resize(ref quotient, i + 1);
return new BigInteger((short)(dividend._sign * divisor._sign), quotient);
}
@@ -1274,7 +1274,7 @@ namespace Renci.SshNet.Common
return Zero;
if (i < remainderValue.Length - 1)
remainderValue = Resize(remainderValue, i + 1);
Array.Resize(ref remainderValue, i + 1);
return new BigInteger(dividend._sign, remainderValue);
}
@@ -1428,7 +1428,7 @@ namespace Renci.SshNet.Common
return Zero;
if (i < result.Length - 1)
result = Resize(result, i + 1);
Array.Resize(ref result, i + 1);
return new BigInteger(negRes ? (short)-1 : (short)1, result);
}
@@ -1500,7 +1500,7 @@ namespace Renci.SshNet.Common
return Zero;
if (i < result.Length - 1)
result = Resize(result, i + 1);
Array.Resize(ref result, i + 1);
return new BigInteger(negRes ? (short)-1 : (short)1, result);
}
@@ -1572,7 +1572,7 @@ namespace Renci.SshNet.Common
return Zero;
if (i < result.Length - 1)
result = Resize(result, i + 1);
Array.Resize(ref result, i + 1);
return new BigInteger(negRes ? (short)-1 : (short)1, result);
}
@@ -1626,7 +1626,7 @@ namespace Renci.SshNet.Common
return Zero;
if (i < result.Length - 1)
result = Resize(result, i + 1);
Array.Resize(ref result, i + 1);
return new BigInteger(negRes ? (short)-1 : (short)1, result);
}
@@ -3210,7 +3210,7 @@ namespace Renci.SshNet.Common
else
{
if (i < remainderValue.Length - 1)
remainderValue = Resize(remainderValue, i + 1);
Array.Resize(ref remainderValue, i + 1);
remainder = new BigInteger(dividend._sign, remainderValue);
}
@@ -3218,7 +3218,7 @@ namespace Renci.SshNet.Common
if (i == -1)
return Zero;
if (i < quotient.Length - 1)
quotient = Resize(quotient, i + 1);
Array.Resize(ref quotient, i + 1);
return new BigInteger((short)(dividend._sign * divisor._sign), quotient);
}
@@ -3879,7 +3879,7 @@ namespace Renci.SshNet.Common
var to = ex + (needExtra ? 1 : 0);
if (to != extra)
res = Resize(res, bytes + to);
Array.Resize(ref res, bytes + to);
while (ex-- > 0)
{
@@ -3891,7 +3891,7 @@ namespace Renci.SshNet.Common
}
else
{
res = Resize(res, bytes + 5);
Array.Resize(ref res, bytes + 5);
res[j++] = (byte)word;
res[j++] = (byte)(word >> 8);
res[j++] = (byte)(word >> 16);
@@ -3903,20 +3903,6 @@ namespace Renci.SshNet.Common
return res;
}
private static byte[] Resize(byte[] v, int len)
{
var res = new byte[len];
Array.Copy(v, res, Math.Min(v.Length, len));
return res;
}
private static uint[] Resize(uint[] v, int len)
{
var res = new uint[len];
Array.Copy(v, res, Math.Min(v.Length, len));
return res;
}
private static uint[] CoreAdd(uint[] a, uint[] b)
{
if (a.Length < b.Length)
@@ -3950,7 +3936,7 @@ namespace Renci.SshNet.Common
if (sum != 0)
{
res = Resize(res, bl + 1);
Array.Resize(ref res, bl + 1);
res[i] = (uint)sum;
}
@@ -3985,7 +3971,7 @@ namespace Renci.SshNet.Common
//remove extra zeroes
for (i = bl - 1; i >= 0 && res[i] == 0; --i) ;
if (i < bl - 1)
res = Resize(res, i + 1);
Array.Resize(ref res, i + 1);
return res;
}
@@ -4006,7 +3992,7 @@ namespace Renci.SshNet.Common
if (sum != 0)
{
res = Resize(res, len + 1);
Array.Resize(ref res, len + 1);
res[i] = (uint)sum;
}
@@ -4030,7 +4016,7 @@ namespace Renci.SshNet.Common
//remove extra zeroes
for (i = len - 1; i >= 0 && res[i] == 0; --i) ;
if (i < len - 1)
res = Resize(res, i + 1);
Array.Resize(ref res, i + 1);
return res;
}