VIREO_FUNCTION_SIGNATURE4(ArrayInsertSubset, TypedArrayCoreRef, TypedArrayCoreRef, Int32, TypedArrayCoreRef)
{
TypedArrayCoreRef arrayOut = _Param(0);
TypedArrayCoreRef arrayIn = _Param(1);
IntIndex arrayInLength = arrayIn->Length();
Int32 idx = (_ParamPointer(2) != null) ? _Param(2) : arrayInLength;
TypedArrayCoreRef subArray = _Param(3);
IntIndex subArrayLength = subArray->Length();
VIREO_ASSERT(arrayOut != subArray);
if (0 <= idx && idx <= arrayInLength) {
if (arrayOut == arrayIn){
arrayOut->Insert1D(idx, subArrayLength, subArray->BeginAt(0));
} else {
arrayOut->Resize1D(arrayInLength + subArrayLength);
// Copy the original array up to the insert point
arrayOut->ElementType()->CopyData(arrayIn->BeginAt(0), arrayOut->BeginAt(0), idx);
// Copy the inserted subarray
arrayOut->ElementType()->CopyData(subArray->BeginAt(0), arrayOut->BeginAt(idx), subArrayLength);
// Copy the rest of the original array.
arrayOut->ElementType()->CopyData(arrayIn->BeginAt(idx), arrayOut->BeginAt(idx + subArrayLength), arrayInLength - idx);
}
} else if (arrayOut != arrayIn)
arrayOut->Type()->CopyData(_ParamPointer(1), _ParamPointer(0));
return _NextInstruction();
}
VIREO_FUNCTION_SIGNATURE2(ArrayReverse, TypedArrayCoreRef, TypedArrayCoreRef)
{
TypedArrayCoreRef arrayOut = _Param(0);
TypedArrayCoreRef arrayIn = _Param(1);
IntIndex arrayInLength = arrayIn->Length();
VIREO_ASSERT(arrayOut != arrayIn);
arrayOut->Resize1D(arrayInLength);
for (IntIndex i = 0; i < arrayInLength; i++)
arrayOut->ElementType()->CopyData(arrayIn->BeginAt(i), arrayOut->BeginAt(arrayInLength - 1 - i));
return _NextInstruction();
}
VIREO_FUNCTION_SIGNATURE3(FileRead, Int16, Int32, TypedArrayCoreRef)
{
Int16 handle = _Param(0);
Int32 length = _Param(1);
TypedArrayCoreRef data;
if (_ParamPointer(2))
data = _Param(2);
else
return _NextInstruction();
PRGID PrgId = CurrentProgramId();
Int32 ISize;
DESCR *pTmp;
HANDLER arrayHandle;
DSPSTAT DspStat;
// Create a byte array to hold the data
if (length < MIN_ARRAY_ELEMENTS)
length = MIN_ARRAY_ELEMENTS;
ISize = length * sizeof(DATA8) + sizeof(DESCR);
if (cMemoryAlloc(PrgId, POOL_TYPE_MEMORY, (GBINDEX) ISize, (void**) &pTmp, &arrayHandle) == OK)
{
pTmp->Type = DATA_8;
pTmp->ElementSize = (DATA8)sizeof(DATA8);
pTmp->Elements = length;
// Read the file into the array
DspStat = cMemoryReadFile(PrgId, handle, length, DEL_NONE, pTmp->pArray);
if (DspStat != FAILBREAK)
{
// If the array is not big enough, resize it
if (data->Length() < length)
data->Resize1D(length);
// Copy into the output data array
for (Int32 i = 0; i < length; i++)
*data->BeginAt(i) = pTmp->pArray[i];
cMemoryFreeHandle(PrgId, arrayHandle);
}
}
else
DspStat = FAILBREAK;
SetDispatchStatus(DspStat);
return DspStat == BUSYBREAK ? _this : _NextInstruction();
}
VIREO_FUNCTION_SIGNATURE4(ArraySubset, TypedArrayCoreRef, TypedArrayCoreRef, IntIndex, IntIndex)
{
TypedArrayCoreRef arrayOut = _Param(0);
TypedArrayCoreRef arrayIn = _Param(1);
Int32 idx = (_ParamPointer(2) != null) ? _Param(2) : 0;
idx = Max(idx, 0); // coerce index to non-negative integer
VIREO_ASSERT(arrayOut != arrayIn || idx == 0);
Int32 maxLen = arrayIn->Length() - idx; // calculate count from idx to end of array
maxLen = Max(maxLen, 0);
Int32 len = (_ParamPointer(3) != null) ? _Param(3) : maxLen;
len = Max(len, 0);
len = Min(len, maxLen); // coerce len to 0 .. maxLen
arrayOut->Resize1D(len);
if(idx < arrayIn->Length() && arrayOut != arrayIn) {
arrayOut->ElementType()->CopyData(arrayIn->BeginAt(idx), arrayOut->BeginAt(0), len);
}
return _NextInstruction();
}
VIREO_FUNCTION_SIGNATURE3(ArrayRotate, TypedArrayCoreRef, TypedArrayCoreRef, Int32)
{
TypedArrayCoreRef arrayOut = _Param(0);
TypedArrayCoreRef arrayIn = _Param(1);
Int32 offset = _Param(2);
VIREO_ASSERT(arrayOut != arrayIn);
IntIndex arrayInLength = arrayIn->Length();
arrayOut->Resize1D(arrayInLength);
if (arrayInLength > 0)
{
offset = offset % arrayInLength;
if (offset < 0)
offset += arrayInLength;
arrayOut->ElementType()->CopyData(arrayIn->BeginAt(0), arrayOut->BeginAt(offset), arrayInLength - offset);
arrayOut->ElementType()->CopyData(arrayIn->BeginAt(arrayInLength - offset), arrayOut->BeginAt(0), offset);
}
return _NextInstruction();
}
