- ParagraphList::const_iterator par = paragraphs.begin();
- ParagraphList::const_iterator pend = paragraphs.end();
+ if (runparams.par_begin == runparams.par_end) {
+ runparams.par_begin = 0;
+ runparams.par_end = paragraphs.size();
+ }
+ pit_type bpit = runparams.par_begin;
+ pit_type const epit = runparams.par_end;
+ LASSERT(bpit < epit, /* */);