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Types/Class: Start arrays on even bytes

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Addresses #175
This commit is contained in:
Michael Croes
2020-08-13 21:40:44 +02:00
parent dcd5bb3437
commit 9ea54be524
1 changed files with 11 additions and 4 deletions
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15
S7.Net/Types/Class.cs
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@@ -85,6 +85,7 @@ namespace S7.Net.Types
throw new Exception("Cannot determine size of class, because an array is defined which has no fixed size greater than zero.");
}
IncrementToEven(ref numBytes);
for (int i = 0; i < array.Length; i++)
{
numBytes = GetIncreasedNumberOfBytes(numBytes, elementType);
@@ -219,6 +220,7 @@ namespace S7.Net.Types
if (property.PropertyType.IsArray)
{
Array array = (Array)property.GetValue(sourceClass, null);
IncrementToEven(ref numBytes);
Type elementType = property.PropertyType.GetElementType();
for (int i = 0; i < array.Length && numBytes < bytes.Length; i++)
{
@@ -288,10 +290,8 @@ namespace S7.Net.Types
if (bytes2 != null)
{
// add them
numBytes = Math.Ceiling(numBytes);
if ((numBytes / 2 - Math.Floor(numBytes / 2.0)) > 0)
numBytes++;
IncrementToEven(ref numBytes);
bytePos = (int)numBytes;
for (int bCnt = 0; bCnt < bytes2.Length; bCnt++)
bytes[bytePos + bCnt] = bytes2[bCnt];
@@ -314,6 +314,7 @@ namespace S7.Net.Types
if (property.PropertyType.IsArray)
{
Array array = (Array)property.GetValue(sourceClass, null);
IncrementToEven(ref numBytes);
Type elementType = property.PropertyType.GetElementType();
for (int i = 0; i < array.Length && numBytes < bytes.Length; i++)
{
@@ -327,5 +328,11 @@ namespace S7.Net.Types
}
return numBytes;
}
private static void IncrementToEven(ref double numBytes)
{
numBytes = Math.Ceiling(numBytes);
if (numBytes % 2 > 0) numBytes++;
}
}
}