51,593 Topics
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| | Hello i am new here i liked this community: I have a c++ homework could you check it if it is correct? 1. Rewrite the following loop so it uses pointer notation (with the indirection operator) instead of the subscript notation: [code] for (int x = 0; x < 100; … |
| | i don know about class n pointers,can u explain it with essy examples please  |
| | I have GradeBook.h that include class interface, GradeBook.cpp that include class implemantation, I want to make a lib file and use it with GradeBook.h on the other project. How can I do that ? I am using Windows 7, VS 2008 |
| | I am getting the error error C4716: 'ReStart' : must return a value can anyone help? thanks [code]int ReStart(int id);[/code] [code]PushButtonAdd("Transparent",90,300,ReStart,11);[/code] |
| | When I want to save result to file I use ofstream, right? [CODE]ofstream myout; myout.open (sav_fl, fstream::app); [/CODE] But depending on the "ol" value(=user input), I want to show it to screen not to file. How can I do? I thought this way. But error message shown up. [CODE]if (ol … |
| | Hello. I need some help with a project of mine and the thing is that I have the class organisms that has two sub-classes: animals and plants. Animals has two subclasses itself: Carnivores and Herbivores. I have succeded in including the plants header file or cornivores header file or herbivores … |
| | hi im working with opengl/sdl and im still new to it what im trying to do is to make a 2nd box or sprite that will follow the frist box ive made can anyone help me out here is some of the code i have [CODE]#include "sdl.h" #include "GL_Functions.h" #include …  |
| | Hey everyone, I have this assignment for my C++ class and I need to sort some data I have data in a file in this order: some 10 digit int -the account id some name -the account name some balance -the account balance basically I want to sort the data … |
| | Hi everyone! I've been working on this code for 2 days(got half of it from the web) [code] class name { string name1; public: name(string s) //set name { name1 = s; } string get() //get name { return name1; } }; // Define less than relative to name objects. … |
| | plz convert this to vb.nettttttttttttttttt thanx [code] attachment attachment = new attachment(); attachment.caption = "facebook.com"; attachment.name = "Publish Test"; attachment.href = "http://www.facebook.com"; attachment.description = "a sample description"; attachment.properties = new attachment_property() { category = new attachment_category() { href = "http://www.facebook.com/mycategory/sample", text = "sample category" }, ratings = "5 stars" }; … |
 | Hey, this is my first post here, glad to be here and learn from you guys! what i'm trying to do is this: I would like to enter 2 names and then hit a number from lets say 1 to 10, and i have the array Q1,Q2... etc. these should …  |
 | upon trying to save or view the code when I generate a dialog box in vs 2010 beta 2 I get a nice [URL="http://yfrog.com/jmdialogerrorp"]Little Error Box[/URL] That pop ups and prevents me from saving or editing the source at all leaving hours wasted making it in the first place. I … |
| | [CODE]LPCWSTR name; name += TEXT(".png");[/CODE] produces:'+=' : illegal, right operand has type 'const wchar_t [5]' I want to have .png appended to the name string. Anyone know how to fix it? |
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| | Hey, im Keith and im 15 years old. I like computers alot and im pretty good at making websites, so this year i signed up for computer science. Our teacher is teaching us how to wrote programs using C++ and i love it, but i was wondering, why are they … |
| | I am trying to convert this to Delphi, but I'm lost, please help [CODE=cpp]enum Error { Ok = 0, ErrorUnsupportedFunction, ErrorInvalidParamaters, ErrorInternal, ErrorUnknown = 0xffffffff }; typedef enum Error Error; Error __stdcall GetLastError() { typedef Error(__stdcall *FunctionType)(); FunctionType GetLastError = (FunctionType)GetProcAddress(GetModuleHandle(NULL), "GetLastError"); return GetLastError(); }[/CODE] |
| | Hey guys, I really do not know on how to start this loop logic structure. Can anyone give me a rough idea on how to go about it? The question is : Develop a solution to calculate a student's grade average for one semester. The letter grades should be entered … |
 | [code] /* * This program displays "I Love C++" to the Standard Output */ #include <iostream> int main () { std::cout << "I Love C++"; return 0; } [/code] I just DLed and Installed Cygwin and Netbeans using instructions from: [url]http://netbeans.org/community/releases/65/cpp-setup-instructions.html[/url] I did see that ths "type" of problem has … |
| | So here is my program: [code] #include <iostream> #include <string> #include <iomanip> using namespace std; int main() { string lotName, bidder1_ID, bidder2_ID; double reservePrice, bidder1_bid, bidder2_bid; cout << "Enter lot name: "; getline (cin, lotName); cout << "Enter a reserve price: cin >> reservePrice; cout << "Bidder #1, enter your … |
 | Assuming that a year has 365 days, write a class named DayOfYear that takes an integer representing a day of the year and translates it to a string consisting of the month followed by day of the month. For example, Day 2 would be January 2 Day 32 would be … |
| | this is the program // file: am00201.cpp // author: a.montes de oca #include <iostream> using namespace std; int main() { int a[16] = {67, 111, 110, 103, 114, 97, 116, 117, 108, 97, 116, 105, 111, 110, 115, 33}; int i; char letter; i = 0; while (i < 16) … |
| | [CODE]#include <fstream> #include <iostream> #include <cassert> using namespace std; int main() { ifstream inFile; ofstream outFile; inFile.open("file.txt"); assert(!inFile.fail()); cout << "everythings fine" << endl; cin.ignore(); cin.get(); return 0; }[/CODE] This is my current code, file.txt doesnt exist. The program simply crashes. I was hoping for an error message explaining what …  |
| | Help me to find the error in Prim code, thanks. [CODE] #include <iostream.h> #include <stdio.h> #define MAX 10 class prims { private: int cost[MAX][MAX], tree[MAX][MAX]; int n; public: void readmatrix(); int spanningtree (int src); void display (int cost); }; void prims :: readmatrix() { int i, j, k; n = … |
| | Hello. I'm a newbie and i was wondering if anyone can tell me how to create an array that contains objects and number 0 wherever there is no object. Thanks in advance  |
| | Hello everyone, I am a C++ newbie and I am running into some linking errors. I am using Vi to compile and link my code. Here are the linking errors: assign6.o: In function `cAccountList::cAccountList()': assign6.cpp:(.text+0x1db): undefined reference to `cAccount::cAccount()' assign6.o: In function `cAccountList::cAccountList()': assign6.cpp:(.text+0x22b): undefined reference to `cAccount::cAccount()' assign6.o: In … |
| | Hey everyone I am writing some code for my c++ class and in this program I am trying to sort back account information by there accountID #'s. When I try to compile, here are the errors I get: assign6.cpp: In member function ‘void cAccountList::sort_by_ID()’: assign6.cpp:110: error: ‘accountID’ was not declared …  |
| | [code] int do_openFile(void) { char *p ; /* pointer to outFileName */ char *m ; /* pointer to report date */ char *mon; /* month number in report date */ /* get output file name */ m = pk->CNCRptdate; m += 2; strncpy(mon, m, 2); p = outFileName ; strcpy(p, … |
| | I would like that case 1: should display how many elements do i want, and that i can assign values to those elements. Mine because of the j++ goes infinite, so i can enter infinite values to infinite arrays. How could i do this? Cate elemente vrei sa adaugi: 3 … |
| | Every thing works perfectly only it will not check for a full house. Ive tried to figure out what the problem was by rewriting pair checking and three of a kind checking but the same result always. The function simply returns an integer corresponding to the hand stength given a … |
| | i need help in making c++ code for tic tac toe on 7x7 board by using mini max and alpha beta where 4 in a row ,column,and diagonal are winning state , if some 1 can share code it will be quite help full 4 me |
 | Hello; can we give the variable in struct an initial values ? ex: struct example{ int id; float gpa; string name; }; can we but this inside the structure : int id=34440; the same Q is for the Class ? can we intialize the variable when definr it for the … |
| | Hello. I'm new to C++ and I just learned how to use vectors and lists and indices and iterators, but i'm confused about iterators. Mainly, why should I use them instead of indices? They seem to add more complexity to accomplish the same thing as using indices... so could someone …  |
| | Ok i have a char with ''/afile.html" assigned to it. The extensions of it can vary so i need to get the extension to a seperate char to compare it with something else il show you what i have.... Basically i need everything after the '.' [CODE]char resource[16]; n = … |
| | the error by the compiler is [code=text]Compiler: Default compiler Building Makefile: "C:\Dev-Cpp\Makefile.win" Executing make... make.exe -f "C:\Dev-Cpp\Makefile.win" all g++.exe Untitled1.o plants.o -o "Project1.exe" -L"C:/Dev-Cpp/lib" Untitled1.o(.text+0x182):Untitled1.cpp: undefined reference to `Plants::Plants()' collect2: ld returned 1 exit status make.exe: *** [Project1.exe] Error 1 Execution terminated[/code] main code is [code]#include <iostream> using std::cout; using …  |
| | Problem: Write a pgoramthat uses a structure to store the following information: Name, IdNum, Test1Score through Test4Score, average, and grade. function to ask the user for student's name, etc. The average score should be calculated and stored in the Average member of the structure should be calculated in their own … |
| | Hello all, great forum that have been a great source of information for me over the past many weeks. So now I decided to join up. I am currently trying to write a partial sum function as part of a much larger program I once wrote in Fortran. I am … |
| | Dev cpp gives me the error 18 C:\Dev-Cpp\Untitled1.cpp request for member `setStats' in `plant1', which is of non-class type `Plants ()()' And the same for line 19. Please someone tell me what's wrong. I'm a noob at c++. Thanks in advance. #include <iostream> using std::cout; using std::cin; using std::endl; #include … |
| | If we have three classes A,B,C declared as follows: [code=C++] class A{ protected: int x; }; class B : A{ //... }; class C : B{ //... }; [/code] does class C see its member x? It seems to me that it doesn't according to what the compiler says to …  |
| | Hi! I'm making a graph generator. Most is done but the only problem is that when i'm doing the 2nd or 3rd graph in the same session, the graph collapses . and after the end of execution of the program, i get "Null pointer assignment" I tried debugging but i … |
| | Can someone please tell me the difference between Class and Structure in C++ ??? I cant find any..!! Thanks |
| | This code you are asked to input a number and it will tell u wheter or not the input you entered is in the array or not i am having issues with this code and its giving me some errors, if anyone wants to help me out it will be … |
| | Hello everyone, I'm trying to improve myself on Winsock , so I wrote a code which can get the content of an website.Now I'm trying to post (upload) a file to a http website.Here is my code , what should I add to my code to work with POST? Thanks … |
| | i have oop in c++ in some detail but i am not familair with java.please help me to write five sentences in prose or cons of this statement "c++ supports more oop features as compared to jave" please help me |
| | [b]Split from - [url]http://www.daniweb.com/forums/thread255859.html[/url][/b] I think I may be in the same class as rwill357 and I am having some problems getting my code correct too. I appreciate the help that you have given so far. I have made the changes that you suggested. I'm not sure where I'm going … |
| | I need help with decrypting a 12 character message located in a file named encrypted.txt then printing the decrypted message to the screen and a new file named decrypted.txt. This is what i have so far... and don't understand how to print the char to the screen as a letter … |
| | i have a numeric updown that goes from 0-99 and it works but i want to make it continuous so if i hit the down when its at 0 it goes to 99 and when its on 99 and i hit up it goes to zero anyone know the code … |
 | Hi gurus, I have a simple question regarding file parsing. I am trying to parse a file and store the fields I require in a multimap. Now I want to pass an array which is of int type and specifies field number to be extracted in a file. I am … |
| | im having a difficult time figuring out my last two functions. first one which is the int divelement(int a[], int size); this function is suppose to find and print the elements of my array that are only divisible by 5, so the answer will be like 10,15,90, and 95. i … |
| | this is my daughters homework she asked me to help and now im stuck she has worked it out and is making me look stupid need to get my selfrespect back even if i have to cheat(i used my brain and im asking you) the code is as follows but … |
| | ok, so i have a simple code below but i need an array function that calculates which elements are divisible by 5 and then its passes the results to the main function and outputs them, any help with code on how to do it will be appreciated? basically the above … |
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