///////    File dDate_OS.C    ///////
#include "dDate_OS.h"

Date* Date_OS::operator[](Uint i)
{   if ( i >= len) return(NULL);
    if ( ! sorted() ) sort();
    return(this->dates[i]);
}

int Date_OS::append(void* date)    // append entry at end
{   if ( len == max && increase() == -1)
          return(-1);
    dates[len++] = (Date*) date;
    return(0);
}

int Date_OS::increase()    // lengthen pointer array
{   max += Inc;
    cout << "max= " << max << endl;
    Date** tmp = new Date*[max];
    if ( tmp == NULL ) return(-1);
    for (int i=0; i < len; i++)
        tmp[i] = dates[i];
    delete [] dates;
    dates = tmp;
    return(0);
}

void Date_OS::remove(Uint i)    // delete entry i
{   for ( int j=i ; j < len ; j++ )
         dates[j] = dates[j+1];
    len--;
}