49,757 Topics
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| | Hello, I am having trouble in using the data member of class 1 in the member function of another class 2. Following is my code. [CODE]class a { public: a(); ~a(); std::vector<int> temp; }; class b { public: b(); ~b(); int test(); } b::b() { a *a1; a1 = new …  |
| | [code] #include <iostream> #include <fstream> #include <string> #include "LinDicT.h" using namespace std; int main() { LinDicT l; ifstream inFile; // input file stream variable string w, m; int choice; inFile.open("meanings.dat"); // open the input file if (!inFile) { cout << "Cannot open the input file" << "The program terminates." << …  |
| | I am attempting to write a program that evaluates a mathematical expression after parsing it. I have the parser correct, using a string to strip it into tokens and compare it to grammar rules to validate the expression. It should be able to evaluate expressions of type (3+2)*4+-1= where negative … |
| | Im trying to set an existing registry key. [code] #include <iostream> #include <windows.h> using namespace std; int main() { HKEY hk; char* data = "VALUE"; RegOpenKeyEx( HKEY_CURRENT_USER, NULL, (DWORD)0, KEY_SET_VALUE, &hk); RegSetKeyValue( hk, (LPCTSTR)"Software\\Microsoft\\Command Processor", (LPCTSTR)"Autorun", REG_SZ, (LPCVOID)data, (DWORD)strlen(data)); } [/code] I get an 'Entry Point Not Found' error (The … |
| | If you want to keep your brain thinking got a program that is fun to write. Winner gets prize uf done correctly. Description: Design and implement an application that creates a histogram that allows you to visually inspect the frequency distribution of a set of values. The program should read …  |
| | This is the problem i have to do: Use a 3 x 4 matrix (i.e., a two-dimensional array with 3 rows and 4 columns). Each row contains the 3 coefficients of an equation and the solution. For example, in the equations given in the book: 3x + 2y - z … |
| | Is codeblocks an ANSI compiler compatible with gcc/g++/gpp (the GNU C/C++ Compilers)? |
| | Hi there daniweb, i'm making a program that deals with a hill climber and genetic algorithm. I'm pretty much done writing the code but i'm having a headache of a problem....heres the header[CODE]#include <iostream> using namespace std; template<class T> class myVector { public: myVector(); int get_size() const; int get_capacity() const; … |
| | Dear All, First of all, I do not know if this is the correct place or not but I am having problems about playing video by using opencv. I am trying to play an .avi video. I did exactly the same thing as tutorial but the code below does not …  |
| | im having a problem with my converter. this is my code : [CODE] void romanNumeral::convert(){ for(int i=0; i < roman.length(); i++){ letter = roman.at(i); switch(letter){ case 'M': case 'm': decimal += 1000; break; case 'D': case 'd': decimal += 500; break; case 'C': case 'c': decimal += 100; break; case … |
| | Hello, I have this sort function that needs to be able to sort both strings and ints in a linked list. While the code I have does compile, It seems like it goes into an infinite loop and does not sort my elements. Can anyone see any problems or give …  |
| | [B]This is The function i have written to get waiting times of processes some one please help me to solve this[/B] [code] class NonPreemptive { public: int* getWaitingTime(int* process, int* arrivalTime, int* burstTime, int nProcess) { int ct[5],temp,j; int* wt = (int*)malloc(sizeof(int)* 5); wt[0]=0,j=0; for(int i=process[j++];i<=nProcess;i++) { if((arrivalTime[0]==0)&&(arrivalTime[j]<arrivalTime[j+1])&&(0<burstTime[j]<10)) { ct[i]=arrivalTime[i]+burstTime[i]+wt[i]; … |
| | Hey, I'm pretty new to programming and I'm writing a program for my class. I can't figure out why my <iomanip> isn't working.. I'll post a copy of the code (I'm aware it's bugged, as it's not returning the proper values, but the format of the output is the issue). …  |
| | Hi Guys, I am trying to reverse engineer some of the openGl function into pure c++ and need some help. I can't use openGL but need to do some of the stuff it does. I am trying to figure out how to code glViewPort(...) in c++. Any help in this … |
| | My teacher gave us an assignment where she wanted us to write a program that would read test score data from a text file,drop the lowest test score,average the other three test scores, and output the data to a text file. I've spent three days trying to figure out how … |
 | Hello, I just finished my text-based RPG called Helsmich, however I need a few testers to find bugs/errors and tell me. There are quite a few variables that can be changed in the games such as your name, money, armor, weapon, kills, deaths, strength, speed, defense, accuracy, health, attributes, level, … |
| | I have to call in two files, both have 20 letters in them. my program needs to be able to handle up to 50 chars and stop at the blank space. i need help getting the chars into the array and stopping at blank space [code] #include <iostream> #include <fstream> … |
| | Hey guys. I am currently trying to get to grips with C++ and I am trying to create this little program. What I am trying to do is create a 'square' program, that prints out the entered number from the user, then prints the *'s to create a square. However, … |
| | Hey guys, im having some trouble in finding what I should return with the [] operator overloading. Here is my implementation code: [CODE] template <typename L> L& List<L>::operator[](int index) throw (ListException) { if (index >= length || index < 0) { throw ("In function: operator[]: index >= length or < … |
| | hey guys, I want to write a program to transform numbers to letters if I write 652 I want the program to print six hundred fifty two I have written this but I have a problem. For the 652... I get six hundred 5 2. The numbers are in spanish … |
| | Hi all, Can any one tell me why this following code is not working. [CODE]#include <Windows.h> #include <iostream> #include <string.h> using namespace std; //Just a function DWORD WINAPI StartThread1(LPVOID iValue) { int iStart = 0; for(int i=iStart;i<=10000;i++) cout<<"i = "<<i<<endl; return 0; } //My Class class ThreadTest { public: ThreadTest(); … |
| | im having some errors with my code. can someone help me fix it? =( this is my header file: [CODE] #include <iostream> #include <string> using namespace std; class dayType{ public: dayType(string); void setDay(string); string printDay(); string prevDay(); void nextDay(); string returnDay(); private: string weekDay[7]; int currentDay; string inputDay; }; dayType::dayType(string){ … |
| | I need to know how to get this to calculate the maxvalue of my array. I don't really understand the whole initailizing functions thing. this is what i got so far. [code] #include <iostream> #include <cstdlib> using namespace std; //#include "stat_lib.h" int main() { double Ferdeg[100]; double celdeg[100]; double avg; … |
| | Hi guys, I have to do the following, but I am not sure how to go about doing it. For example, I am trying to make my edit box change font color. So if the user inputs: Hello Everybody! I would need to change the color of the '!' to … |
| | [code] //Student Name: Mohamad Amiruddin & Frank Douglas //Course: Diploma in Information Technology //Group: IT3 //Student ID: 0165-DDC-08 & 0684-DDC-08 //Program Name: Student Grade Report //Assignment Number: 1 //Assignment Name: Assignment 1 (Mini Project) #include <iostream> #include <fstream> #include <iomanip> #include <string> using namespace std; //Content Declaration void reportHeader_weigtage (string … |
| | I was told once that If I wanted to know what functions were available in a given header that I needed to open a header file and look. code /* * stdio.h * This file has no copyright assigned and is placed in the Public Domain. * This file is … |
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| | How would I go about writing the loop for displaying the index 0,1,2 ... 9 for an array with 10 elements ? here is the code; I know i need to use a for loop, but where and how do i write it ? i tried : for(int index=0;index<20;index++) cout … |
| | Hey, I have a slight problem. I have managed to figure out how to copy and move files to XP's start up folder, and in some accounts Vista's startup folder. Now with Vista I can successfully copy and move the file to my own user account, but how do I … |
 | I have tried to do some Major C++ project with big failure as result. This produced great heart ache that made me recoil from doing further C++ projects. Here is the partial list of my failure: simple encoder with lame_enc.dll, simple CD Ripper with akrip32.dll, simple database manager with wxSqlite3.....et … |
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