/// <summary>
/// Returns a new query operation that represents the combination of this query sequence with another
/// query sequence. The two sequences are combined element-by-element using a selector function.
/// The resulting sequence has a length equal to the smaller of the two sequences.
///
/// For example:
/// sequenceA = (A, B, C, D)
/// sequenceB = (E, F, G, H)
/// sequenceA.Query().Zip(sequenceB.Query(), (a, b) => a + b)
/// Would result in:
/// (AE, BF, CG, DH)
/// </summary>
public QueryWrapper <NewType, ZipOp <NewType, QueryType, OtherType, QueryOp, OtherOp> > Zip <NewType, OtherType, OtherOp>(QueryWrapper <OtherType, OtherOp> sourceB, Func <QueryType, OtherType, NewType> resultSelector)
where OtherOp : IQueryOp <OtherType>
{
return(new QueryWrapper <NewType, ZipOp <NewType, QueryType, OtherType, QueryOp, OtherOp> >(new ZipOp <NewType, QueryType, OtherType, QueryOp, OtherOp>(_op, sourceB._op, resultSelector)));
}
public static T Max <QueryType, QueryOp, T>(this QueryWrapper <QueryType, QueryOp> wrapper, Func <QueryType, T> selector)
where T : IComparable <T>
where QueryOp : IQueryOp <QueryType>
{
return(wrapper.Select(selector).Fold((a, b) => a.CompareTo(b) > 0 ? a : b));
}
public static QueryType Max <QueryType, QueryOp>(this QueryWrapper <QueryType, QueryOp> wrapper)
where QueryType : IComparable <QueryType>
where QueryOp : IQueryOp <QueryType>
{
return(wrapper.Fold((a, b) => a.CompareTo(b) > 0 ? a : b));
}
public static QueryWrapper <float, SelectOp <QueryType, float, QueryOp> > ToFloats <QueryType, QueryOp>(this QueryWrapper <QueryType, QueryOp> wrapper)
where QueryOp : IQueryOp <QueryType>
where QueryType : IConvertible
{
return(wrapper.Select(FormatHelper <QueryType> .toFloat));
}
public static QueryWrapper <long, SelectOp <QueryType, long, QueryOp> > ToLongs <QueryType, QueryOp>(this QueryWrapper <QueryType, QueryOp> wrapper)
where QueryOp : IQueryOp <QueryType>
where QueryType : IConvertible
{
return(wrapper.Select(FormatHelper <QueryType> .toLong));
}
public static QueryWrapper <byte, SelectOp <QueryType, byte, QueryOp> > ToBytes <QueryType, QueryOp>(this QueryWrapper <QueryType, QueryOp> wrapper)
where QueryOp : IQueryOp <QueryType>
where QueryType : IConvertible
{
return(wrapper.Select(FormatHelper <QueryType> .toByte));
}