51,593 Topics
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| | compiler : g++ of gcc4.5.2(minGW) os : windows xp sp3(32bits) [code] template<typename T, template<typename> class CONT = AccumulationTraits > class Accum { public : static typename CONT<T>::AccT accum(T const *beg, T const *end) { typename CONT<T>::AccT total = CONT<T>::zero(); while(beg != end) { total += *beg; ++beg; } return total; … |
| | hello everybody. i bulding now a software with a data-base i am using MFC lib. i need help how to add, edit & use data base in vc++ tks biny.  |
 | This is my GPA Calculator, for a homework assignment. Please share what you would have added or remove from the code. Arrays is a requirement in this code. [CODE=c++]# include <iostream> using namespace std; int main () { float b [100], c [100], a, a1, average_GPA, total_credits, Cummalative_GPA; cout <<"Enter …  |
 | Get_Number function is a function to get input from keyboard, this function restrict the user to pass wrong input........... How to use -> For example we need to take input in any integer variable n call Get_Number() like this [CODE] n=Get_Number(); [/CODE] With Full Back Space support Please comments on …  |
| | plz how i can write a program to pop from one stack and save the value deleted to onther stack .. means .. pop the top from one stack and push the delete value to other stack ... :( |
| | plz i cant't correct the errors .. can any one correct this [CODE] #include<iostream.h> #define size 100 struct stack { int item [size]; int top=0 ; }; class m{ bool isempty(stack s) { if (s.top==-1) return true ; else return false ;} bool isfull(stack s); } return (s.top==size-1);} int count … |
| | Starting to do arrays and my first question is... Wrtie a loop to print the elements of an array of int called numbers. You only know that the array has 5 elements. i My 1st attempt is going like this.... [CODE]#include <iostream> using namespace std; int main() { int number[5]; … |
| | I am trying to move a ball using time. The ball must move 5 pixel per second. In my code the ball is moving faster. Why is it moving faster? What is wrong with my code? [CODE]#include <allegro.h> #include <cstdlib> #include <time.h> int ball_x = 320; int ball_y = 240; … |
| | I am workinb on a face recognition application and i got stuck with creating and handling a credential dat will allow the application tl login or unlock windows... Help needed pls |
| | Im trying to get this game to play again once the user gets the right answer or the guesses exceede 8. The problem comes in when i type in Y or N. It doesnt loop back up to the top of Do loop like i would like it too. Please … |
| | Ive been having a problem with faults and im not sure what exactly its coming from. I know that SDL_Flip(MainScreen) is causing it. bdround.Draw() is the only thing that changes MainScreen but i get the segfault even if i take that out. [CODE]/******* Edu.h Class edu(main part of engine) *******/ … |
 | Hi, I'm starting to do some work with MFC and I was wondering why the design view seems to only work for dialogs? I'm using VS2010, is there a design view you can use with a simple SDI application? |
| | here's the infix expression: [B]EXAMPLE 1[/B] a/(b+c)*d according to me, if [B]*[/B] is given higher precedence then [B]/[/B] , then this should be the postfix expression: [B]1) abc+d*/ [/B] if / has higher priority then * , then: [B]2) abc+/d*[/B] [B]question 1: [/B]which is correct?? 1 or 2 ? according … |
| | so.. my professor ask us to read map(x,y) into a graph data structure and traverse using Breadth First Search. although i asked him for help, i still so lost..can someone please explain how should i start, such as what are some functions the graph class should has..and what they should … |
| | Hi All, I just wrote a program of string. In the below program every blank space will be replace by char 'x'. The program compiled successfully but it dint not run, give error. What I am doing wrong plz suggest me. [CODE]#include<iostream.h> using namespace std; int f1( char *st); int … |
| | Instructions: --For each day, tell which balloon (identify it by time released) traveled the greatest distance on that day (7 values printed). Identify the day by name rather than by number. --For each day, calculate and print the average distance (print one decimal position) traveled by all balloons released on … |
| | Hello World ! How to load a Bitmap image or any other format in openGL ? I am so much confused where I need to begin my innings ? confused while studying lot of theories and concepts...plz can anyone tell me the steps from starting altough i have read some … |
| | what is wrong with my code?i cant figure it out. [CODE] #include<iostream.h> #include<stdlib.h> #include<stdio.h> #define MAX 50 struct Node { char judul[MAX]; char pengarang[MAX]; int harga; Node* nextPtr; }; Node* makeNode(char judul[], char pengarang[], int harga) { Node* newNodePtr = (Node*)malloc(sizeof(Node)); if(newNodePtr == NULL) { cout << "Out of Memory" …  |
| | i am using the following code to tokenize a character array [CODE]for(int i = 1; i <= count+1; i++) { name[i] = strtok(NULL, "("); type[i] = strtok(NULL, ")"); b << type[i] << " " << name[i]; b << ";"<<endl; cout << type[i] << name[i] << endl; }[[/CODE] however in the … |
| | I want to merge 2 or more hashtables together..It doesn't matter what the final form is, as long as I can iterate through it. Here the final form is an array. So I have an unsigned long long as the key, the value is a string,int pair. Each key maps … |
| | i am having a lot of problems trying to create a Mastermind game. The goal is to implement it and have it print out a game board on the screen that has the previous answer move up as new ones are entered. Also its supposed to keep track of whether … |
| | i write a point class, when i compile , vs2008 give me the warning about" not all control parth return a value" could you please tell how to avoid that? [CODE] double& operator [](int i) //[] which can used as the left value { if(i==0) return x; else if(i==1) return … |
| | i have my interface built already and my sql database. i want to connect the interface to the database. i have four fields that is the lugword, meaning1, meaning2 and the search from the database can some ome help me |
| | [CODE]#include<stdio.h> #include<graphics.h> #include<conio.h> #include<malloc.h> #include<stdlib.h> #include<dos.h> #include<iostream.h> int k=1, i, user=0, dice=0, x1=50, y1=410, x2=70, y2=410, dir1=0, dir2=0, ch; int cnt1=1, cnt2=1; void *obj1, *obj2, *o1, *o2, *dot, *back, *turn, *ready; unsigned int size; void ladder1() { int m,n; for(m=0;m<=250;m+=250) for(n=0;n<=m;n+=250) { setcolor(DARKGRAY); line(53+m,57+n,55+m,55+n); line(53+m,57+n,133+m,137+n); line(55+m,55+n,135+m,135+n); line(133+m,137+n,135+m,135+n); setfillstyle(SOLID_FILL, YELLOW); floodfill(55+m,58+n,DARKGRAY); …  |
| | Hi, I am working on an exercise in operator overloading. I've created a matrix class and I am supposed to overload operators so I can do arithmetic on matrices efficiently. My directions say that I am supposed to make two matrix arrays using the class constructor that has 2 parameters … |
 | i searched about this error. they said is mostly caused by forgot putting semicolon... but i find for 1hours+ still cant find out >.< anyone can help me? the error is pointing test.h lines 9: multiple types in one declaration test.h: [CODE]#ifndef TEST_H_ #define TEST_H_ class TEST { public: //call … |
| | In my current project (homework), I am storing a pair of values in a map. The ID is an integer, and the value is a string (name of a movie) and an integer (rating of the movie on a 1-5 scale). I need to get the elements into the map …  |
| | I am recently converting an application to the office style look, with a ribbon menu instead of regular menu. Surprisingly, I cannot change the title of the main window when using SetWindowText(). GetLastError() return success. The title which is displayed comes from IDR_MAINFRAME string and isn't changing no matter what … |
| | compiler vc2010 and gcc4.5.2(minGW) os : windows xp sp3 I am trying to implement a generic find_if function as std::find_if Below is my code [code] //code for estimating expanding time template<typename unaryOP> double timeCount(unaryOP op, size_t const LOOP = 1, char const* NAME = "function") { std::clock_t begin, end; begin … |
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| | Is there a way to move data from one map to another without it being re-sorted? Ex: I have a map of [ICODE]<int, pair<string, int>[/ICODE] where the key is the number of vowels in the string (int) and the pair contains a moviename as string and rating as int (multiple … |
| | Hi I'm trying to use the outportb() function to send a signal to a RS-232 serial port. I understand that in order to use the function I need to #include <dos.h> and <conio.h>. I am using Dev-C++ as my compiler and am having no luck when compiling the code. I … |
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| | while writing a code in borland turbo c++ , I included the graphics library graphics.h but it gave the error- BGI graphics not supported under windows. following was my code [code] #include<graphics.h> #include<conio.h> int main() { int gd = DETECT, gm; initgraph(&gd,&gm,"C:\\TC\\BGI"); bar(100, 100, 200, 200); getch(); closegraph(); return 0; … |
| | Hello everyone, I am trying to take a screenshot and save it as jpg. I have found a code and save it as bmp but the file size is pretty big. After searching a lot I found this thread [url]http://www.daniweb.com/forums/thread327090.html[/url] but I can't compile the code... :( I am trying …  |
| | firstly, please suggest some tags i should put for this post. onto the problem.. i saw this programming problem on projecteuler.net and wanted to solve it for fun. i solved it, but i tried first till 142857 the output was good, ok, satisfying here's the link where the problem is … |
 | hey everyone, i am attempting to create a simple dll in c++ that creates a timestamp, in the following format... [B]17042011233200[/B] Which is: [B]17/04/2011[/B] @ [B]23:32:00[/B] thus far, i have found a code ([B]see below[/B]), but after compiling with devc++ it doesnt seem to work, i am new with dll's …  |
| | I have this function which reads in a workers.age from a structure. It determines how much taxes that worker will have to pay based on a base[i] salary that is also passed to that function. I am able to print out the net salary and amount of taxes paid for … |
 | I have the following trig functions, but I am wondering if there is a faster algorithm that I could implement: [CODE]static const double SINMIN=0.0009999998333333; static const double COSMIN=0.9999995000000417; static const double TANMIN=0.0010000003333334; static const double E=2.718281828459045235360; static const double PI=3.14159265358979323846; static const double MINVAL=0.01; double sin(double ax) { double x=aabs(ax); … |
| | [CODE]// petcount.cpp - Script 9.1 #include <iostream> #include <string> // Declare the class. class Pet { public: // Constructor and destructor. Pet(std::string theName); ~Pet(); void eat(); void sleep(); // Static method that will // return the current value of count: static int getCount(); protected: std::string name; private: // count will … |
| | Hello Everyone , I have written a simple piece of code for reading an Image file(.png) in c but this code doesn't seem to work properly.Can anyone help me solve this problem of reading an image file in C ? Code I have written is :- [CODE] FILE *file; char … |
| | I need a way to do the following and I cannot think of one, this is what I have so far: [CODE]typedef Obj2*(*Reaction)(); class Obj1 { public: Reaction reaction; }; class Obj2 { public: unsigned int numobj1; Obj1 *objects; }; class Obj3:Obj2 {};[/CODE] Can you find any way of doing … |
| | SOS,SOS,SOS,SOS,SOS,SOS,SOS hello: I'm working with opencv and i have a problem with the function cvFindFundamentalMat(...), the code capture a window with a following warning: //------------------------------------- Windows has triggered a breakpoint in MySIFT.exe. This may be due to a corruption of the heap, which indicates a bug in MySIFT.exe or any … |
 | Hey; I am currently busy with multiprocessing and multithreading. There I saw a signal SIGCHLD which is an excellent zombie process cleaner by handling that signal. But when we are writing our handler function why we declaring it with an signal number arguement ? Is this arguement is automatically passed … |
| | I want to know the difference between call by reference and call by pointer.. |
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| | Ok so i want to make a program that calculates pi. Ive done that already but it only gives me so many decimal places. I want it to give me tons. Im using Dev C++ if that helps too. Here's my code: [CODE] #include <iostream.h> #include <math.h> int main() { …  |
| | Ok, so this is going to be a basic question that I should probably know, but it's baffling me right now... Also, be prewarned that this is a homework assignment I'm working on. I don't want answers, just guidance. I understand what I need top do(for the most part. obviously … |
| | [CODE]ifndef POLY_H #define POLY_H class Poly { public: Poly() : first(0) { } void addTerm(double coeff, unsigned exponent); // add term (coeff^exponent) to the polynomial; // might just change coefficient of existing term, // or might insert new term; maintains terms // in order from greatest to least exponent private: … |
| | what the wrong for this code : [CODE]if (head==NULL)//1 if the list is embty cout<<"NO element in linked list "; else if { if (head==tail){ ///2- if we have one node delete head ; } [/CODE] how i can write the other case if valid addrese if the addrese in … |
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