The null is because it's reading past the last line of the file. So when it has read the last line the 'while' is true, then it reads the next line(one after last one) then when you access the length...

upload the data files if they are not too big, we'll see if we can help.

'tmp' string might be null. put a check like this after you do the 'readLine' and try


if(tmp != null)
{
//your code
}

Its surprising that you are not able to compile it in windows. If you take a library compiled in *NIX, it would not run on windows but usually the code compiles fine both on windows n *nix, apart...

Unfortunately you havn't done enough to make us help u... you can find out a lot of material about tree traversal here, infact you can see similar threads at the bottom of this page too. Read them...

matrixType::matrixType()
{
maxRow = 5;
maxCol = 5;
matrix = new int*[maxRow];
for (int row = 0; row > maxRow; row++)
matrix[row] = new int[maxCol];
for(int i = 0; i > maxRow; i++)
for(int j =...

honestly joe and mary don't really care what OS it is. A lot of them won't even know what's an OS. They would be happy with any, provided it does everything they want to do and doesn't make them...

Is this the exact code you compiled? And is that the only error you got? Your code has a lot of other compiler errors too as of now. It'll be good if you paste the entire code after you remove all...

I don't really understand what you are doing. You just have an array of structures of type wordList. So basically you are not using the linked list at all !!! You create a node and insert it into the...

you need to pass the reference to the pointer to make it work. You are just modifying the copy of the pointer here. So the changes will not be visible once you leave the fn.

fn signature could be...

This thread here talks about float comparisons. There's a good link available in the thread about the same.

Thread1 (http://www.daniweb.com/forums/thread73810.html)

And who are 'they' ?? My opinion, C++ is way harder than Java, so don't start with wrong notions.

void int_to_hex(int *dez,string& hex_string);

If you are compiling them one-by-one make sure you only compile and don't go to the linking process. I think you might be doing that and while trying to create an executable its not finding main....

Why don't you post the problem statement first. Then explain how you are trying to achieve it in your code. Then as I said, read about data-types. how did you find out about c_str fn? And I posted...

Hmmm.. don't know where to start from. First things first, 'num' is of type 'char', do you have a class 'char' which has a fn c_str defined? No. Its a fn of the 'string' class. Then you didn't even...

1->atoi signature is this:

int atoi ( const char * str );

2-> read some more threads here to find out alternatives to atoi. You should avoid using it.

Before even going into your logic i have a couple of things I can tell you

1-> Read the code-tags page carefully and learn to use them correctly. it would make your code much easier to read.
2->...

Well i copied your class, created a class definition out of whatever was given and used it and it worked fine for me.


#include <iostream>
#include <fstream>
#include <string>

class...

well no I'm not sure it is inefficient, actually i don't really know how to calculate efficiency and that's the whole reason I had to post it here. Someone who knows how to do that would tell me if...

hey guys,

I have a fixed length .txt file. Values in the file correspond to columns in a db table.
ex file row is something like:

India 3455 78787 89898

table has columns...

Reading this code is a pain..Can you format the code properly and use the language specific code tags? Also please point the function where you are printing the contents.

I don't know what more it can tell you, if you read the error message carefully it says everything. _search needs a parameter of type NODE<TYPE>** and you are passing it NODE<TYPE>* , so either...

My bad, i didn't see the function signature properly, you're returning by value so the copy ctor will get called.



that doesn't seem to be so because

maxItems = sB.maxItems;


and hence...

If you are passing the address of result then it's definitely a problem because you have not allocated 'result' on the heap. It's a local variable in the function Union and it disappears when we exit...

This is a first, a video problem ... what if the video was edited? :) .. Not a good way to learn programming I'd say ...

Why don't you put some couts and check the values of 'Position' ? and btw you are leaking a lot of memory.

did you try


try{
FloatValue a(INFINITE_VALUE);
}

Your implementation file needs the 'using namespace std' declaration.

You need to do 2 things

1> Post the exact error messages here
2> Use code tags for re-posting your code so that it can be easily read.

And as a rule if your class defines any of these 3 then you probably need all the 3.
1> destructor
2> copy ctor
3> assignment operator

so you can define a copy ctor as well for your class.

Well if you are getting into programming in c++ seriously, then you need to take a look at passing arguments by value and references and returning values from functions before you try anything else.

First of all you need to decide if the parameter has to be passed by reference and hence changed or it has to be returned by the function and collected in main. Right now you're trying to do both but...

I guess you can look at using the gnuplot library for simple graphs etc. i'm assuming you are working on *NIX

unfortunately then it would fail to evaluate his original expression of
264+* ...right?

You don't need to create 3 threads for the same problem. 1 would be enough.

I don't think you will be able to use the same makefile across UNIX and Windows. What you can do is have 2 makefiles with different extensions like makefile.XP and makefile.Sun and have another sort...

C:\PROGRA~1\MICROS~1.0\VC>test.exe
Input a string: she sells sea shells at the sea shore but the sea

Output:There are 10 words

That seems like a wrong output to me.

:) well its getting useless now, I'm sure with 'minor' changes we can achieve a lot with anything.

Mr. OP if you've got what you wanted, please close this thread now.

Not allowed to use the <string> header?