What makes this "declarator invalid"? C++
- by nieldw
I have Vertex template in vertex.h. From my graph.h:
20 template<class edgeDecor, class vertexDecor, bool dir>
21 class Vertex;
which I use in my Graph template.
I've used the Vertex template successfully throughout my Graph, return pointers to Vertices, etc. Now for the first time I am trying to declare and instantiate a Vertex object, and gcc is telling me that my 'declarator' is 'invalid'. How can this be?
81 template<class edgeDecor, class vertexDecor, bool dir>
82 Graph<edgeDecor,int,dir> Graph<edgeDecor,vertexDecor,dir>::Dijkstra(vertex s, bool print = false) const
83 {
84 /* Construct new Graph with apropriate decorators */
85 Graph<edgeDecor,int,dir> span = new Graph<edgeDecor,int,dir>();
86 span.E.reserve(this->E.size());
87
88 typename Vertex<edgeDecor,int,dir> v = new Vertex(INT_MAX);
89 span.V = new vector<Vertex<edgeDecor,int,dir> >(this->V.size,v);
90 };
And gcc is saying:
graph.h: In member function ‘Graph<edgeDecor, int, dir> Graph<edgeDecor, vertexDecor, dir>::Dijkstra(Vertex<edgeDecor, vertexDecor, dir>, bool) const’:
graph.h:88: error: invalid declarator before ‘v’
graph.h:89: error: ‘v’ was not declared in this scope
I know this is probably another noob question, but I'll appreciate any help.
