/// <summary>
/// Converts current array to an Array of type <typeparamref name="TDestStruct"/>.
/// </summary>
/// <typeparam name="TDestStruct"></typeparam>
/// <param name="method">ArrayConversionMethod,</param>
/// <param name="propertiesPerItem">Used for ArrayConversionMethod.Cast: describes how many doubles to copy to and per TDestStruct. If -1 is specified then sizeof(TDestStruct)/sizeof(double) will be used.<br></br></param>
public virtual unsafe TDestStruct[] ToArray <TDestStruct>(ArrayConversionMethod method, int propertiesPerItem = -1) where TDestStruct : unmanaged, DataStruct
{
if (typeof(TDestStruct) == typeof(double))
fixed(double *_ = this)
return((TDestStruct[])(object)AsDoubleSpan.ToArray());
var totalBytes = this.SizeOf;
if (method == ArrayConversionMethod.Reinterpret)
{
if (totalBytes % sizeof(TDestStruct) != 0)
{
throw new ArgumentException($"Can't reinterpret to TDestStruct because: totalBytes ({totalBytes}) % sizeof(TDestStruct) ({sizeof(TDestStruct)}) != 0 ({totalBytes % sizeof(TDestStruct)})");
fixed(double *_ = this)
return(MemoryMarshal.Cast <double, TDestStruct>(AsDoubleSpan).ToArray());
}
else if (method == ArrayConversionMethod.Cast)
{
if (propertiesPerItem == -1)
{
propertiesPerItem = sizeof(TDestStruct) / sizeof(double);
}
if (totalBytes % (propertiesPerItem * sizeof(double)) != 0)
throw new ArgumentException($"Can't reinterpret to TDestStruct because: totalBytes ({totalBytes}) % (propertiesPerItem * sizeof(double)) (({propertiesPerItem} * sizeof(double))) != 0 ({totalBytes % sizeof(TDestStruct)})"); }
var ret = new TDestStruct[(totalBytes) / (propertiesPerItem * sizeof(double))];
TDestStruct tmp = new TDestStruct();
double *tmpPtr = (double *)&tmp;
var len = Count * (Properties / propertiesPerItem);
for (int i = 0, linearI = 0; i < len; i++)
{
for (int j = 0; j < propertiesPerItem; j++, linearI++)
{
tmpPtr[j] = this.GetLinear(linearI);
}
ret[i] = tmp; //copies because tmp is struct.
}
return(ret);
}
else
{
throw new NotSupportedException(method.ToString());
}
}
/// <summary>
/// Converts this <see cref="DoubleArray"/> to a linear <see cref="double"/>.
/// </summary>
/// <returns></returns>
public virtual double[] ToArray() {
fixed(double *_ = this) //fix to prevent gc from moving them during the operation.
return(AsDoubleSpan.ToArray());
}