internal void AddField(int fieldNumber)
{
if (numVectorFields == fieldNumbers.Length)
{
fieldNumbers = ArrayUtil.Grow(fieldNumbers);
fieldPointers = ArrayUtil.Grow(fieldPointers);
}
fieldNumbers[numVectorFields] = fieldNumber;
fieldPointers[numVectorFields] = perDocTvf.GetFilePointer();
numVectorFields++;
}