/// <summary>
/// Gets an Int32 from the next 4 bytes in a byte array, starting at the specified index
/// </summary>
/// <param name="array">byte array</param>
/// <param name="startIndex">start index</param>
/// <param name="reverse">reverse the byte array, useful to quickly switch endiannes</param>
/// <returns>the int32 value</returns>
public static int ToInt32(byte[] array, int startIndex, bool reverse = false)
{
if (array.Length - startIndex < 4)
{
throw new ArgumentException("Array must be at least of length 4");
}
Int32Struct int32;
if (reverse)
{
int32 = new Int32Struct()
{
Byte3 = array[startIndex], Byte2 = array[++startIndex], Byte1 = array[++startIndex], Byte0 = array[++startIndex]
};
}
else
{
int32 = new Int32Struct()
{
Byte0 = array[startIndex], Byte1 = array[++startIndex], Byte2 = array[++startIndex], Byte3 = array[++startIndex]
};
}
return(int32.Int32);
}
/// <summary>
/// Gets the bytes from an Int32
/// </summary>
/// <param name="value">int32 value</param>
/// <returns>the bytes from the Int32</returns>
public static byte[] GetBytes(int value, bool reverse = false)
{
Int32Struct int32 = new Int32Struct()
{
Int32 = value
};
if (reverse)
{
return(new byte[] { int32.Byte3, int32.Byte2, int32.Byte1, int32.Byte0 });
}
return(new byte[] { int32.Byte0, int32.Byte1, int32.Byte2, int32.Byte3 });
}