1.1 --- a/lemon/dfs.h	Sat Aug 27 12:08:23 2005 +0000
     1.2 +++ b/lemon/dfs.h	Mon Aug 29 18:21:02 2005 +0000
     1.3 @@ -536,14 +536,17 @@
     1.4  	_dist->set(m,_stack_head);
     1.5        }
     1.6        else {
     1.7 -	Node n;
     1.8 -	while(_stack_head>=0 &&
     1.9 -	      (n=G->source(_stack[_stack_head]),
    1.10 -	       ++_stack[_stack_head]==INVALID))
    1.11 -	  {
    1.12 -	    _processed->set(n,true);
    1.13 -	    --_stack_head;
    1.14 -	  }
    1.15 +	m=G->source(e);
    1.16 +	++_stack[_stack_head];
    1.17 +      }
    1.18 +      //'m' is now the (original) source of the _stack[_stack_head] 
    1.19 +      while(_stack_head>=0 && _stack[_stack_head]==INVALID) {
    1.20 +	_processed->set(m,true);
    1.21 +	--_stack_head;
    1.22 +	if(_stack_head>=0) {
    1.23 +	  m=G->source(_stack[_stack_head]);
    1.24 +	  ++_stack[_stack_head];
    1.25 +	}
    1.26        }
    1.27        return e;
    1.28      }