Ifira: Difference between revisions
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= ifira = | |||
Synopsis: ifira(''integer'') = ''integer'' | Synopsis: ifira(''integer'') = ''integer'' | ||
Latest revision as of 19:18, 28 January 2009
ifira
Synopsis: ifira(integer) = integer
The function returns the index of the first atom that belongs to the residue with the given index, or the special value ifira(nr+1) = na+1.
This function is useful, for instance, to construct a loop over all atoms of a given residue, i:
do j ifira(i) ifira(i+1)-1 print "Atom $anam(j) of residue $rnam(i) $rnum(i)" end do