1.1 --- a/src/work/klao/path.h	Tue Apr 27 18:33:39 2004 +0000
     1.2 +++ b/src/work/klao/path.h	Tue Apr 27 22:29:11 2004 +0000
     1.3 @@ -585,7 +585,7 @@
     1.4    template<typename Gr>
     1.5    typename DynamicPath<Gr>::EdgeIt&
     1.6    DynamicPath<Gr>::nth(EdgeIt &e, size_t k) const {
     1.7 -    if( k<0 || k>=length() ) {
     1.8 +    if( k>=length() ) {
     1.9        // FIXME: invalid EdgeIt
    1.10        e.it = edges.end();
    1.11        e.forw = true;
    1.12 @@ -606,7 +606,7 @@
    1.13    template<typename Gr>
    1.14    typename DynamicPath<Gr>::NodeIt&
    1.15    DynamicPath<Gr>::nth(NodeIt &n, size_t k) const {
    1.16 -    if( k<0 || k>length() ) {
    1.17 +    if( k>length() ) {
    1.18        // FIXME: invalid NodeIt
    1.19        n.idx = length()+1;
    1.20        n.tail = true;
    1.21 @@ -649,7 +649,7 @@
    1.22  
    1.23      int ai = a.idx, bi = b.idx;
    1.24      if( bi<ai )
    1.25 -      swap(ai,bi);
    1.26 +      std::swap(ai,bi);
    1.27      
    1.28      edges.resize(bi-ai);
    1.29      copy(P.edges.begin()+ai, P.edges.begin()+bi, edges.begin());