CollIndex NACollection<T>::resize(CollIndex newSize)
{
if (newSize == maxLength_ OR
newSize < usedLength_)
// no need to resize or impossible to resize
return maxLength_;
else
{
// increment the size in larger chunks to avoid
// many expensive resize calls
if (newSize > maxLength_ AND
newSize/3 < (maxLength_+2)/2)
{
newSize = 3 * (maxLength_+2)/2;
}
// shouldn't even come close to this
#ifndef PRIV_SRL
assert (newSize < MAX_COLL_INDEX);
#endif // PRIV_SRL
// use a temp collection with the new size
NACollection<T> newOne(heap_,newSize);
#ifndef PRIV_SRL
assert(newSize >= usedLength_);
#endif // PRIV_SRL
for (CollIndex i = FIRST_COLL_INDEX; i < usedLength_; i++)
{
newOne.usages_[i] = usages_[i];
if (usages_[i] != UNUSED_COLL_ENTRY)
{
newOne.arr_[i] = arr_[i];
}
}
// now just deallocate the old arrays and take the new
// arrays and maxLength_
deallocate();
usages_ = newOne.usages_;
arr_ = newOne.arr_;
maxLength_ = newOne.maxLength_;
// make sure the destructor of newOne won't mess things up
newOne.usages_ = NULL;
newOne.arr_ = NULL;
newOne.usedLength_ = 0;
newOne.maxLength_ = 0;
return maxLength_;
}
}
bool album_db::loadFromText(string file_name)
{
ifstream textFile;
textFile.open(file_name.data());
albums.clear();
if (textFile.is_open())
{
string line;
while ( getline(textFile,line) )
{
std::istringstream buf(line);
std::istream_iterator<string> beg(buf), end;
vector<string> tokens(beg, end);
if(line.at(0) == '\t')
{
Album last = albums.at(albums.size()-1);
string id = tokens.at(0) , duration = tokens.at(2) , price = tokens.at(3);
last.addNewTrack(atoi(id.c_str()),tokens.at(1),atof(duration.c_str()),atof(price.c_str()));
albums.pop_back();
albums.push_back(last);
}
else
{
string id = tokens.at(0) , price = tokens.at(3);
Album newOne(atoi(id.c_str()),tokens.at(1),tokens.at(2),atof(price.c_str()));
albums.push_back(newOne);
}
}
textFile.close();
return true;
}
textFile.close();
return false;
}
Panorama::Panorama(PntR2& flappyCenter) : mpFlappyBird(NULL), mplstRectBarriers(NULL){
newOne(flappyCenter);
}
