195693   sqlite3_int64 *piPrev,          /* IN/OUT: Previous value written to list */  argument
195696   assert_fts3_nc( iVal-*piPrev > 0 || (*piPrev==0 && iVal==0) );
195697   *pp += sqlite3Fts3PutVarint(*pp, iVal-*piPrev);
195698   *piPrev = iVal;
196172   sqlite3_int64 *piPrev,          /* IN/OUT: Previous value written to list */  argument
196178     assert_fts3_nc( *pbFirst==0 || iVal>=*piPrev );
196179     iWrite = (u64)iVal - (u64)*piPrev;
196181     assert_fts3_nc( *piPrev>=iVal );
196182     iWrite = (u64)*piPrev - (u64)iVal;
196184   assert( *pbFirst || *piPrev==0 );
196187   *piPrev = iVal;
244908   i64 *piPrev,  argument
244911   if( iPos>=*piPrev ){
244913     if( (iPos & colmask) != (*piPrev & colmask) ){
244916       *piPrev = (iPos & colmask);
244918     pBuf->n += sqlite3Fts5PutVarint(&pBuf->p[pBuf->n], (iPos-*piPrev)+2);
244919     *piPrev = iPos;