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Home/ Questions/Q 8740377
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Editorial Team
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Editorial Team
Asked: June 13, 20262026-06-13T11:07:14+00:00 2026-06-13T11:07:14+00:00

Here is a list of errors I am seeing RST.hpp:23:18: error: ‘RSTNode’ has not

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Here is a list of errors I am seeing

RST.hpp:23:18: error: ‘RSTNode’ has not been declared
RST.hpp:23:38: error: ‘RSTNode’ has not been declared
RST.hpp:23:45: error: expected ‘,’ or ‘...’ before ‘<’ token
RST.hpp:41:30: error: ‘RSTNode’ has not been declared
RST.hpp:41:37: error: expected ‘,’ or ‘...’ before ‘<’ token
RST.hpp:44:28: error: ‘RSTNode’ has not been declared
RST.hpp:44:35: error: expected ‘,’ or ‘...’ before ‘<’ token
RST.hpp: In member function ‘virtual void RST<Data>::leftRotate(int)’:
RST.hpp:25:7: error: ‘RSTNode’ was not declared in this scope
RST.hpp:25:19: error: expected primary-expression before ‘>’ token
RST.hpp:25:23: error: ‘dummyone’ was not declared in this scope
RST.hpp:25:34: error: ‘ptr’ was not declared in this scope
RST.hpp:26:19: error: expected primary-expression before ‘>’ token
RST.hpp:26:23: error: ‘dummytwo’ was not declared in this scope
RST.hpp:27:19: error: expected primary-expression before ‘>’ token
RST.hpp:27:23: error: ‘dummythree’ was not declared in this scope
RST.hpp: In member function ‘virtual bool RST<Data>::addToTree(int)’:
RST.hpp:46:11: error: ‘ptr’ was not declared in this scope
RST.hpp:48:13: error: ‘num’ was not declared in this scope
RST.hpp:50:11: error: ‘temp’ was not declared in this scope
RST.hpp:55:11: error: ‘temp’ was not declared in this scope
RST.hpp:63:20: error: expected type-specifier before ‘RSTNode’
RST.hpp:63:20: error: expected ‘;’ before ‘RSTNode’
RST.hpp:64:23: error: ‘temp’ was not declared in this scope
RST.hpp: In member function ‘bool RST<Data>::insert(const Data&) [with Data = countint]’:
test_RST.cpp:43:23:   instantiated from here
RST.hpp:14:7: error: no matching function for call to             RST<countint>::addToTree(BSTNode<countint>*&, NULL, const countint&)’
RST.hpp:14:7: note: candidate is:
RST.hpp:44:18: note: bool RST<Data>::addToTree(int) [with Data = countint]
RST.hpp:44:18: note:   candidate expects 1 argument, 3 provided

this is all of my code except for the tester which is fine @ this point
http://pastebin.com/3zu0hAy1

please help, I am not sure why this is happening!

NOTE: BST is a superclass of RST // BSTNode is a superclass of RSTNode

Thank you

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1 Answer

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  1. Editorial Team
    Editorial Team
    2026-06-13T11:07:15+00:00Added an answer on June 13, 2026 at 11:07 am

    The problem seems to be that you have not included “RSTNode.hpp” in “RST.hpp”. So the ‘RSTNode not declared’ error message is exactly right.

    The error is not what I guessed in your previous question, so you better undo that change.

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