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namespace Utils {
public class RangeIterator {
private Range range;
private int32 current;
public RangeIterator (Range range) {
this.range = range;
this.current = this.range.start;
}
public int32 get () {
return this.current;
}
public bool next () {
if (!this.range.reverse) {
if (this.current <= this.range.end) {
this.current++;
return true;
}
} else {
if (this.current >= this.range.end){
this.current--;
}
}
return false;
}
public bool has_next () {
return (this.current < this.range.end);
}
}
public class Range {
public bool reverse {get; private set;}
public int32 start {get; private set;}
public int32 end {get; private set;}
public Range (int32 start, int32 end) {
if (start <= end) {
this.reverse = false;
} else {
this.reverse = true;
}
this.start = start;
this.end = end;
}
public Type element_type () {
return typeof (int);
}
public RangeIterator iterator () {
return new RangeIterator (this);
}
}
}
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