Visual C++ :: What Is The Best Matching Data Structure For C# Binary Heaps With Boost

May 5, 2015

I wonder are there boost available structures that act pretty much the same as binary heaps of C# in VC++?

like this code snippet in C#

Code:

BinaryHeap<Node> OpenList = new BinaryHeap<Node>();
BinaryHeap<Node> ClosedList = new BinaryHeap<Node>();

Code:

namespace LibAStar {
/// <summary>
/// A binary heap, useful for sorting data and priority queues.
/// </summary>
/// <typeparam name="T"><![CDATA[IComparable<T> type of item in the heap]]>.</typeparam>
public class BinaryHeap<T> : ICollection<T> where T : IComparable<T> {
// Constants

[code].....

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C++ :: How To Create Tree Data Structure With Boost

Oct 1, 2013

There seems to be lacking support for tree data structure. You have to implement it yourself?

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Visual C++ :: Print Sequence Data Structure

Sep 15, 2012

Printing out a sequence data structure. I am using a PC running Windows 7 with Microsoft Visual Studio 2008. This sequence has a dynamic array which stores a value_type which can be any of the built in data types for C++. Initially the sequence is 30 slots long. When the program starts the user starts at the beginning of the sequence by choosing the "!" option from the menu. The user will then insert a number such as 11 by selecting the "I" option (upper or lower case). Then the user will go to the next position in the sequence by selecting the "+" option then insert 22, then go to the next position and insert 33.

To show that the numbers are actually in the sequence the user goes back to the beginning of the array by selecting "!" and then select "C" to display the current number of 11. Then the user goes to the next position by selecting "+" and then "C" to display 22 and so forth. At this point the member function called current() works just find , but when trying to print the contents of the entire sequence the program displays garbage. Why?

Code:
// FILE: sequence_test.cpp
// An interactive test program for the new sequence class
#include <cctype> // Provides toupper
#include <iostream> // Provides cout and cin
#include <cstdlib> // Provides EXIT_SUCCESS
#include "sequence2.h" // With value_type defined as double
using namespace std;
using namespace CISP430_A2;

[Code].....

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Visual C++ :: Data Structure For Text Predictor Using Qwerty Keyboard?

Oct 30, 2014

i got project to make a program of text predictor. i know the concepts of c++. array, classes , recursion, in data structure linked list, stack, queues and trees etc.. but i still need to make fast and efficient program of text predictor.

i got data in file.txt , in fact it is a dictionary data.....

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C++ :: Serializing Binary Number With Boost Ptree

Jan 2, 2014

Code:

std::vector<char> normals;
//stored->AddDataObject(TID_D3DRMMeshNormals, ("normals"), 0, normals.size(), &normals[0], &sNormals);
ptree& sNormals = stored.add("normals", &normals[0]);

In the first line, DirectX provides this function to store the normals information in ASCII form. Now in the next line, where I altered the original source code, is storing the binary representation of the same normals vector, what I want to accomplish is to store the normal vector as ASCII ....

Code:
<normals>
<x>0.5</x>
<y>0.5</y>
<z>0.5</z>
</normals>

How can I achieve that with boost?

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C++ :: Managing Memory With Multiple Heaps

Apr 15, 2013

Is it a common thing to do? Does this tutorial seem legit .... [URL] .....

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Visual C++ :: Boost Is Not A Namespace

Nov 29, 2013

exportmain.cpp

Code:
#include <boost/property_tree/ptree.hpp>
#include <boost/property_tree/xml_parser.hpp>
// Create an empty property tree object
using boost::property_tree::ptree;
#include "kwxport.h"
#include "resource.h"

[Code] ....

How can I make boost:roperty_tree:tree get recognized by the compiler?

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Visual C++ :: How To Add Boost Libraries

Oct 1, 2013

i have written an algorithm in VC++ 2010 express edition. i have used the following header files

#include<iostream>
#include<string>
#include<sstream>
#include<ctime>
#include<cassert>
#include<fstream>
#include<vector>

[Code]...

the algorithm worked fine in vc 2010 express edition....

the following header files are not working in vc5

#include<regex>
#include<tuple>
#include<numeric>
#include<unordered_set>
#include "clip.h"

Looks like some of hte boost libraries have to added with vc5.. If any one knows how to add boost libraries with vc5.

showing lot of errors in vc5... not able to run the algorithm in vc5. Our company has only vc5.... the algorithm has to be implemented in vc 2010....

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C++ :: How To Write Boost Unit Test In Visual Studio 2010

Apr 16, 2014

I'm new to c++ and boost library also. I need to test a function of my library. For example

// Functions.hpp
int add(const int x, const int y);
//Functions.cpp
int add(const int x, const int y)
{
return (x + y);
}

Now i need to test add function using boost. I need the result or output in below style. What all settings do i need to do in VS 2010 and how i should include boost test in the project.

==== Run unit tests ====
Running 2 test cases...
./mytest.cpp(13): error in "SimpleTestInMainTestingModule": check 1 == 2 failed
Test suite "Master Test Suite" failed with:
1 assertion out of 2 passed
1 assertion out of 2 failed
1 test case out of 2 passed
1 test case out of 2 failed

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C++ :: Linked Structure For Binary Tree

Dec 16, 2014

So i am implementing the class LinkedBinaryTree and i am aplying "Depth and Height" and "A linked structure for binary tree".

#include <iostream>
using namespace std;
// InspectableContainer
template <typename Object>
class InspectableContainer {
public:
int size();
bool isEmpty() const;

[Code] .....

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C++ :: Inserting Structure In Binary File I/O

Mar 28, 2014

I'm trying to insert a structure into a binary file, then read it back out into a "temporary" structure and output some values.

#include <iostream>
#include <fstream>
using namespace std;
struct b_tree_node {

int num_keys; // number of keys in this node
int key_val[3]; // key values (0 to num_keys - 1)
int child[4]; // child file addresses (0 to num_keys)

[Code] ....

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C/C++ :: Save A Structure To A Binary File?

Mar 27, 2014

I'm trying to save a structure to a binary file, then read it out of the binary file into a new structure. I am unsure what is happening but it is not correct.

#include <iostream>
#include <fstream>
using namespace std;

[Code]....

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C :: Store Data In Binary File Then Use It To Find Inverse Of Matrix Form Of Data

Dec 6, 2013

I need to find inverse of a matrix data in binary file should be used to form matrix.its not finding inverse correctly rest is working good.

Code:
#include <stdio.h>
void createbin();
void display();
void inverse();
int main()
{
createbin();
display();
inverse();

[Code] ....

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C++ :: Read Byte Of Char Data And Convert It Into Text String Of Binary Data That Represents Hex Value

Dec 26, 2013

I am writing a program where I need to read a byte of char data and convert it into a text string of binary data that represents the hex value...

i.e. The char byte is 0x42 so I need a string that has 01000010 in it. I've written the following subroutine....

------------- My Subroutine ----------------------------------------------------------------------
void charbytetostring(char input, char *output){
int i, remainder;
char BASE=0x2;
int DIGITS=8;
char digitsArray[3] = "01";

[Code] ....

When I submitted the byte 0x42 to the subroutine, the subroutine returned to the output variable 01000010... Life is good.

The next byte that came in was 0x91. When I submit this to the subroutine I get garbage out.

I am using a debugger and stepped through the subroutine a line at a time. When I feed it 0x42 I get what I expect for all variables at all points in the execution.

When I submit 0x91 When the line remainder = input % BASE; gets executed the remainder variable gets set to 0xFFFF (I expected 1). Also, when the next line gets executed..

input = input / BASE; I get C9 where I expected to get 48.

My question is, are there data limits on what can be used with the mod (%) operator? Or am I doing something more fundamentally incorrect?

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C :: Writing Structure Array Bytewise To Binary File And Read It Back

Aug 21, 2014

I would like to write a complete structure array to a file and read it back, recovering all the data. I have tried the following:

Code:

#include <stdio.h>
#include <string.h>
#define NUM 256
const char *fname="binary.bin";
typedef struct foo_s {
int intA;
int intB;
char string[20];

[Code]...

//---------------------------------------------------- but the mac field is reading back some random value repeatedly. Why is that? And how do I fix this?

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C/C++ :: How To Solve Illegal Structure Operation Error In Binary Operator Overloading

Aug 1, 2013

#include<iostream.h>
#include<conio.h>
class sum {
    int a,b,ans;
public:
void  geta() {
  cin>>a;

[Code] ....

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C :: Binary File Write By User Input Then Printing Binary File Data Out

Dec 6, 2013

Following is the program I wrote it basically takes 9 inputs and then save them into binary file. then print out the data stored in binary data and find inverse of it then print the inverse out. but its stuck in a loop somewhere.

Code:
#include <stdio.h>
int main() {
int a[3][3],i,j;
float determinant=0;
int x;
FILE *fp = fopen ("file.bin", "wb");

[Code] .....

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C :: Scope Of A Data Structure

Oct 9, 2013

how to solve this undeclared error when compiling this code. I assume it has something to do with scope.

C code - 47 lines - codepad

Code:

#include <stdio.h>
int main(void) {
struct bank_account {

[Code].....

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C++ :: Asymmetric Data Structure

Mar 18, 2013

I am trying to create an structure of data with following elements:

struct stest {
std::vector<int> na;
std::vector<double> nb;
std::vector<double> va;
std::vector<double> vb;
std::vector<double> vc;
std::vector<double> vd;
}

I would like to modify the composition of this struct, so that I can create a special data structure by

vector<stest*> data_test;
for(int i = 0; i < 10; i++)
data_test.push_Back(new stest);

within this structure, I have: only one na and one nb, but ten groups of combination of va, vb, vc, vd that I can access by pointer, which means na, nb are independent but still inside of the structure.

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C++ :: Two Dimensional Map - Data Structure

Apr 4, 2013

I'm currently having the following data structure:

typedef struct {
int a;
int b;
} S;
<vector <vector<S> > v;

Now I also have different pointers that can be set in connection with one instance of the above shown vector. Therefore I was attempting to work with a map:

map<p*, <vector<vector <S> >, vector<sI> > m;

However, it seems like it doesn't work that way. Therefore I tried the following:

map<p*, map<<vector<vector <S> >, vector<S> > > m2;

With this attempt I do now, however, get another mistake here, that [] cannot be used here:

S s;
m2[p][0].push_back(s);

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C++ :: What Data Structure Does A Vector Use

Dec 14, 2013

Does it use Linked List or Dynamic Array?

I want to know this because if I happen to want to use a lot of insertions and deletions then it is more efficient to make use of Linked List instead of Dynamic Array.

While, if I happen to want to just access random parts of the Array, then Dynamic would be more efficient.

I want to make a 2D game using SDL engine and I need to check whether or not an object is colliding with a list of other objects. (because there would be more then one objects on the map.)

Since I would simply be accessing each object sequentially to check whether or not the object is colliding with another the object in question, and since any of those objects could "die" and be deleted at any time, it makes more sense to use Linked List then a Dynamic Array.

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C/C++ :: How To Use One Structure Data In Other Structures

Jul 2, 2014

I created one structure and the created structure is using in few more structures, but i did not get the proper data.

typedef struct _MSG_HEADER{
//MESSAGE_HEADER 40 bytes
short iApiTcode;
short iApiFuncId;
int LogTime;
char AlphaChar[2];

[Code]...

My requirement is have to fill the MessageHeader structure & we can use that header in all the structures entire program.

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C++ :: Vectors With Structure - How To Add Data

Nov 26, 2014

I have two structs like below,

struct SP {
string sp1;
string sp2;
};
struct SL {

[Code] ....

How to add data to slVect ?

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C++ :: Using Custom Class For STL Set Data Structure

Oct 27, 2014

When we want to use custom classes for the STL set data structure, how to do it?

I look around and see people passing comparators, overloading operator(), and also overloading operator< in the class itself.

Which one's the idiomatic c++ way?

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C :: How To Store Data Structure Into 2D Array

Mar 22, 2013

I have this data store into a data structure.

i j x y w h w*h
0 0 0 0 9 11 99
1 0 0 11 9 10 90
2 0 0 21 9 11 99
0 1 9 0 8 12 96
1 1 9 12 8 7 56
2 1 9 19 8 6 48

[Code]...

Code:

struct data {
//Here
/*! horizontal position */
int x;
/*! vertical position */
int y;
/*! width */
int w;
/

[Code]...

data and then i have an array /*! it contain group_id of each data line*/ int group_id[16]={0,0,0,0,3,3,1,1,1,3,3,2,2,2,2,1}; I never worked with 2D array before. My problem is that i want to create a 2D array of that data for example if i write data[j][i].. It will give me the reference/value of all data lines that belongs to j column, and same with group_id[j][i]. I don't know how i can store these structure vaules in this like 2D array.

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C++ :: Corporate Data Sales Structure

Nov 20, 2013

Corporate Data Sales

Write a program that uses a structure named CorpData to store the following information on a company division.

Division Name(North, South, East, Or West)
First quarter sales
Second quarter sales
Third quarter sales
Fourth quarter sales
Total annual sales
Average quarter sales

Include a constructor that allows the division name and four quarterly sales amounts to be specified at the time a CorpData variable is created.

The program should create four variables of this structure, each representing one of the following corporate divisions: North, South, East and West. Each variable should be passed in turn to a function that calculates and stores the total annual sales and average sales for that division.

Once this has been done for each division, each variable should be passed in turn to a function that displays the division name, total sales, and average sales.

Here is my code:

#include "stdafx.h"
#include <iostream>
#include <string>
using namespace std;
struct CorpData {

[Code] ....

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