BPTree | C implementation of B Tree | Dataset library
kandi X-RAY | BPTree Summary
kandi X-RAY | BPTree Summary
C++ implementation of B+ Tree.
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QUESTION
This is the structure I defined for my B+ Tree. The function I display returns the number of the not NULL pointers of a node. The problem I'm encountering is that one of the pointers is pointing to:
...ANSWER
Answered 2017-Mar-22 at 09:30Not in general, no. Pointers don't carry any additional meta information besides their value, at run-time. You cannot inspect memory and figure out what it is holding (you can try by decorating your data with magic numbers).
Also, your code is scary since if all the pointers are used, it will run out of bounds. You must make sure i
is less than N
in the loop, and exit when all pointers have been checked.
QUESTION
ANSWER
Answered 2017-Feb-18 at 05:37BpTree.h is including Node.cpp. This is pulling all the symbols from that file into any file that #includes BpTree.h.
So when you link, if you link in Node.obj as well as BpTree.obj, you will get duplicate symbol errors like you are now.
The general rule is that you never #include .cpp files - only the header files themselves. This should resolve your issue.
QUESTION
I am implementing bptree using c++. I am am stuck in the initial step of node creation. Keep getting "C2011 'Node':'class' type redefinition" error. I found some suggestions online to remove class key word from cpp file. But when I remove class keyword I get lots of other errors. here is my code for Node.cpp:
...ANSWER
Answered 2017-Feb-18 at 03:34In C++, headers are simply pasted into the body when you #include
. So now the compiler sees:
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