i get the following error when i try to create a new TreeNode
Code:
error C2514: 'TreeNode' : class has no constructors
Code:
treeObj->root = new TreeNode(oneline.c_str());
Code:
TreeNode<char> *treeNodeObj = NULL;
slizorn
Last Activity: Sep 7 '08, 01:08 AM
Joined: Jul 31 '08
Location:
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help needed with: error with constructor c++
hi guys,
i get the following error when i try to create a new TreeNode
this error is caused by the following line:
and i have declared the following as a global variable:
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help with: program passes compilation but crashes when run..
hi guys, another problem i am facing with this program.. i have created a method to read in values from a file and store them into TreeNodes of a Tree
please help me to solve the problem below.. thanks :)
any help/suggestion is appreciated..
the program crashes when it reaches the following line:
this is from the method...Code:assign1 = searchTree(treeObj->root ,data1)->item;
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yup it was cheers! :)... -
please feel free to ask me any qns or suggest any suggestions.. i am up for anything.. thanks :)Leave a comment:
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Status of post: Unsolved!!! - type conversion problem that needs help C++
hi guys,
the error is as follows:
error C2440: '=' : cannot convert from 'TreeNode<T> *' to 'char *'
with
1> [
1> T=char
1> ]
1> Types pointed to are unrelated; conversion requires reinterpret_cas t, C-style cast or function-style cast
i get this error from the following line of code:
...Code:assign = searchTree(treeObj->root
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yup u r right :D
thanks ever so much :)...Leave a comment:
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error C2440: '=' : cannot convert from 'char *' to 'char'
error is as stated in the topic above:
error C2440: '=' : cannot convert from 'char *' to 'char'
code is below
...Code:void handleOneLine(string string1) { char * cstr, *p; int counter; string str (string1); char data1, data2, data3; cstr = new char [str.size()+1]; strcpy (cstr, str.c_str()); // cstr now contains a c-string copy of str -
slizorn replied to error C2664: 'searchTree' : cannot convert parameter 2 from 'const char *' to 'char'in Coh yea.. haha i must be looking like a fool now...
err... so just use char variables from the start then yea?
done that.. that problem is solved.
thanks for yr help :)...Leave a comment:
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slizorn replied to error C2664: 'searchTree' : cannot convert parameter 2 from 'const char *' to 'char'in Coops my bad..
i declared it as string..
...Code:void handleOneLine(string string1) { char * cstr, *p; int counter; string str (string1); string data1, data2, data3; cstr = new char [str.size()+1]; strcpy (cstr, str.c_str()); // cstr now contains a c-string copy of str int count = 0; p=strtok (cstr,","); count++;Leave a comment:
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slizorn started a topic error C2664: 'searchTree' : cannot convert parameter 2 from 'const char *' to 'char'in Cerror C2664: 'searchTree' : cannot convert parameter 2 from 'const char *' to 'char'
well the error i get is the title above:
error C2664: 'searchTree' : cannot convert parameter 2 from 'const char *' to 'char'
error is form this line
i have also attached searchTree below for yr referenceCode:searchTree(treeObj->root ,data1.c_str());
...Code:Tree<char> *treeObj = NULL; TreeNode<char> *treeNodeObj = NULL; TreeNode<char>* searchTree(TreeNode<char>
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slizorn started a topic help with creating a method to search a tree to find the position of node and..in Chelp with creating a method to search a tree to find the position of node and..
hi guys,
i need to make a tree traversal algorithm that would help me search the tree..
creating a method to search a tree to find the position of node and to return its pointer value
basically i need to read in a text file... shown below
...Code:H H,E,L E,B,F B,A,C A,null,null c,null,D D,null,null F,null,G G,null,null L,J,M J,I,K I,null,null
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help with tree traversal algorithm
hi guys,
i need to make a tree traversal algorithm that would help me search the tree..
basically i need to read in a text file... shown below
and then store the 1st line as the root which i can/have...Code:H H,E,L E,B,F B,A,C A,null,null c,null,D D,null,null F,null,G G,null,null L,J,M J,I,K I,null,null K,null,null M,null,null
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by the way
u see anything wrong with the 1st line?
typedef queue<TreeNode> TreeLinkedList;
TreeLinkedList myQueue;
error C3203: 'TreeNode' : unspecialized class template can't be used as a template argument for template parameter '_Ty', expected a real type...Leave a comment:
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haha yea i did do a full course in Java in my 1st yr in uni.. goin to enter 2nd yr this sept.. was hopin to get some practice for a small headstart.. ;)
well gimme a few mins i will edit my code again and post it..
could ya tell me how i shd go abt implementing/writing the code to read in my text file? its definitely wrong but sort of in the right track.....Leave a comment:
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well basically i want to create a method for reading in my text file and saving it to the respective right, left, root of the tree node
problems faced are that my method is wrong so it aint working.. it/the method for readin in a file isnt correct......Leave a comment:
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help with reading a text file and storing the values into a tree
Hi guys,
I have this coding that I wanted to try out.
Basically this is meant to be done in Java as practice for the Topic trees in data structures and algorithms.
I have recently learned C++ on my own so I wanted to test my skill in C++ by tryin to solve this problem using C++.
so yea here it goes...
i have a text file as follows...
...Code:H,E,L E,B,F B,A,C A,null,null
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ah i see what u mean...
but how am i to get it to skip lines and read and store the values?
i can do the storing values into the matrix but how to do it..when i need the data on the right hand side of the line col = 2; ????...Leave a comment:
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how to use strtok()?
the thing is.. i need to read a text file
[code=cpp]
<matrix>
rows = 2
cols = 2
1 2
2 4
</matrix>
[/code]
and i need to store the data in a double array [10][10]..
where the matrix max size is 10 by 10...
also i nid to extract the values of rows and cols and save it to row and col variables..
i got a suggestion to use strtok()..
but i... -
well the program doesnt work for me when i run it...
could u take a look and tell me wats wrong?
header file...
[code=cpp]
#pragma once
#include <iostream>
#include <fstream>
#include <string>
#include "Matrix.h"
using namespace std;
class Matrix
{
public:
Matrix(void);
~Matrix(void);
void readMatrixFile( string...Leave a comment:
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how to tolkenize it to get the data?
could u show me the code that does it?...Leave a comment:
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