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Previously GraphWriter assumed operator*() for node_iterator always

returned a reference type.  This patch allows operator*() to return a
non-reference type while still maintaining the old behavior when it
does return a reference type.

This patch was motivated when I tried to use "df_iterator" (see
llvm/ADT/DepthFirstIterator.h) as a "node_iterator", as df_iterator
does not return a reference type and thus we would get a compilation
error when trying to take the address of a temporary.

llvm-svn: 42151
This commit is contained in:
Ted Kremenek 2007-09-19 21:26:49 +00:00
parent 648d7a1074
commit c924fd3edf

View File

@ -101,7 +101,11 @@ public:
// Loop over the graph, printing it out...
for (node_iterator I = GTraits::nodes_begin(G), E = GTraits::nodes_end(G);
I != E; ++I)
writeNode(&*I);
writeNode(*I);
}
void writeNode(NodeType& Node) {
writeNode(&Node);
}
void writeNode(NodeType *const *Node) {