R. Clayton (rclayton@monmouth.edu)
(no date)
Is it possible that a graph node's data_ptr will be null?
Under normal circumstances a node's data pointer won't be null. If a node's
data pointer is null, then your code should print an informative error message
and exit. The same with the children pointers; they shouldn't be null, but if
they are your code should print an informative error message and exit.
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