/// <summary>
/// Average value operation.
/// </summary>
/// <param name="args">
/// Result from the expressions evaluation. </param>
/// <exception cref="DynamicError">
/// Dynamic error. </exception>
/// <returns> Result of fn:avg operation. </returns>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public static org.eclipse.wst.xml.xpath2.api.ResultSequence avg(java.util.Collection args) throws org.eclipse.wst.xml.xpath2.processor.DynamicError
public static ResultSequence avg(ICollection args)
{
var j = args.GetEnumerator();
j.MoveNext();
ResultSequence arg = (ResultSequence)j.Current;
if (arg == null || arg.empty())
{
return(ResultSequenceFactory.create_new());
}
int elems = 0;
MathPlus total = null;
TypePromoter tp = new ScalarTypePromoter();
tp.considerSequence(arg);
for (var i = arg.iterator(); i.MoveNext();)
{
++elems;
AnyAtomicType conv = tp.promote((AnyType)i.Current);
if (conv != null)
{
if (conv is XSDouble && ((XSDouble)conv).nan() || conv is XSFloat && ((XSFloat)conv).nan())
{
return(ResultSequenceFactory.create_new(tp.promote(new XSFloat(float.NaN))));
}
if (total == null)
{
total = (MathPlus)conv;
}
else
{
total = (MathPlus)total.plus(ResultSequenceFactory.create_new(conv)).first();
}
}
}
if (!(total is MathDiv))
{
DynamicError.throw_type_error();
}
return(((MathDiv)total).div(ResultSequenceFactory.create_new(new XSInteger(new System.Numerics.BigInteger(elems)))));
}
/// <summary>
/// Sum operation.
/// </summary>
/// <param name="args">
/// Result from the expressions evaluation. </param>
/// <exception cref="DynamicError">
/// Dynamic error. </exception>
/// <returns> Result of fn:sum operation. </returns>
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public static org.eclipse.wst.xml.xpath2.api.ResultSequence sum(org.eclipse.wst.xml.xpath2.api.ResultSequence arg, org.eclipse.wst.xml.xpath2.processor.internal.types.AnyAtomicType zero) throws org.eclipse.wst.xml.xpath2.processor.DynamicError
public static ResultSequence sum(ResultSequence arg, AnyAtomicType zero)
{
if (arg.empty())
{
return(ResultSequenceFactory.create_new(zero));
}
MathPlus total = null;
TypePromoter tp = new ScalarTypePromoter();
tp.considerSequence(arg);
for (var i = arg.iterator(); i.MoveNext();)
{
AnyAtomicType conv = tp.promote((AnyType)i.Current);
if (conv == null)
{
conv = zero;
}
if (conv is XSDouble && ((XSDouble)conv).nan() || conv is XSFloat && ((XSFloat)conv).nan())
{
return(ResultSequenceFactory.create_new(tp.promote(new XSFloat(float.NaN))));
}
if (total == null)
{
total = (MathPlus)conv;
}
else
{
total = (MathPlus)total.plus(ResultSequenceFactory.create_new(conv)).first();
}
}
return(ResultSequenceFactory.create_new((AnyType)total));
}