55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
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#include <wclistit.h>
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#include <iostream.h>
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//
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// insert elem after all elements in the list less than or equal to
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// elem
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//
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void insert_in_order( WCValDList<int> &list, int elem ) {
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if( list.entries() == 0 ) {
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// cannot insert in an empty list using a iterator
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list.insert( elem );
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} else {
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WCValDListIter<int> iter( list );
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while( ++iter ) {
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if( iter.current() > elem ) {
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// insert elem before first element in list greater
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// than elem
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iter.insert( elem );
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return;
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}
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}
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// iterated past the end of the list
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// append elem to the end of the list
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list.append( elem );
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}
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}
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void main() {
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WCValDList<int> list;
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insert_in_order( list, 5 );
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insert_in_order( list, 20 );
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insert_in_order( list, 1 );
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insert_in_order( list, 25 );
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cout << "List elements in ascending order:\n";
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WCValDListIter<int> iter( list );
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while( ++iter ) {
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cout << iter.current() << "\n";
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}
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cout << "List elements in descending order\n";
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// iterator is past the end of the list
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while( --iter ) {
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cout << iter.current() << "\n";
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}
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}
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