51,593 Topics
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| | error: default argument for `int&ns1' has type `int'. i cant figure out why this error is popping up it says the error is on line 3, anyone know how to help? [CODE]#include<iostream> using namespace std; void score_num(int &ns1=0,int &ns2=2,int &ns3=3, int &ns4=4, int &ns5=5, int &n6=6, char gam_answ); void display_score(int … |
| | i am having a problem getting a random number 1-6 on an invisible dice and storing the number. i get this error |error: at this point in file| for this code: [CODE]void roll_hold( char answer, int turn) { if(answer=='r') { do { (rand(turn)% (char& ns1=0,char& ns2=2,char& ns3=3, char& ns4=4, char& …  |
| | I am a part time college student getting his butt kicked in C++. I dont know how to access the members of the class in this header file. How do I do it? And please use plain english. Thanks // Specification file for the Complex class // constructor included. #ifndef …  |
| | Hello all, Firstly let me say yes, i have searched the forums, secondly No! i am not asking for you to do my homework, i realize how much you all hate that =P I am here for some guidance, i have exhausted my researching capabilities and am at the point … |
| | Hey guys, I want to know how can we write the usernames and passwords in file just one time and later on they can be used for log in purpose.. I've some 5 objects of 1 class which can call the class only when the Username and password is correct. … |
| | Good day guys. Im just new in c++. I just want a little help/guide/sample code or steps on how to get files from a certain txt files(notepad) and display it on screen. Vice Versa. Thank you for giving time. God bless. |
| | I'm trying to figure out how to change the edit box colour when I click on the button. Btw, i'm using VC++ 6.0 (MFC). One way I can do is assign a colour variable. When I click the button, the colour variable changes. When the program call the OnDraw function, … |
| | I was wondering if anyone knew of a good library to use for making gui's in c++. You should know that i know of winprog but the problem is that its c. I don't want c because i haven't learned c. I would like to use something that you code … |
| | [CODE]//A Fight #include <iostream> #include <cstdlib> #include <ctime> #include <string> using namespace std; using std::cout; using std::endl; using std::cin; using std::string; int main() { char again = 'y'; while (again == 'y') string yourweapon; cout << "Enter weapon: "; [B][U] cin >> yourweapon;[/U][/B] string yourname; cout << "Enter first name: … |
| | So I've got a major issue in my program. I'm working on building something in OpenGL (using glut), the problem is that I changed my TexureLoader from being just a function, that takes the storagevariable as reference and the name, to a class, which just takes the name (and got … |
| | Hi I'm trying to play a WAV file. I have used the following code... [CODE] PlaySound("C\Sounds\GAME_OVER.WAV",NULL,SND_ASYNCH); [/CODE] I get the following [CODE] Error 7 error C2065: 'SND_ASYNCH' : undeclared identifier c:\Users\Chris\Desktop\Pacman\v1.0\Pacman\Pacman.cpp 65[/CODE] I have also tried... [CODE] PlaySound (TEX("\\SOUNDS\\GAME_OVER.WAV"), NULL, SND_SYNC | SND_NODEFAULT); [/CODE] With this i get no sound … |
| | Hello Everybody! first of all,i`m complete noob at software developing.I don`t even know what language i should write the program that i need.Basically, i want to create program that has sort of "sand box" environment for windows. The purpose of the program is to make the human who currently logged … |
| | how can i manipulate some vectors in c/c++ like v1(1,0,0,0) becomes v2(0,1,0,0) |
| | for many times when i debuge defferent programs i found this error. I think no error in my code because when i degun the same program in ma freids computer no wrong happen. Any idea. the errors: 1- fatal error LNK1120: 1 unresolved external. 2- error LNK2019: unresolved external symbol … |
| | My goal in this program is to solve for the 12 unique solutions for the 8 queens problem. All the below posted is my code. I believe that my findSolutions function is capable of finding the first solution but I have a couple issues from that point. If the user … |
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| | Maybe I am missing something that is clearly obvious but I have fiddled with this printHelper and print function for a while and cant seem to figure it out. The rest of the program works and gets the correct code, but this does not. It should print out 1 -> … |
| | In the following program, why there is no delete in the destructor? is it because there is no pointer involved, so no memory needs to be released? How about the memory allocated when constructing M,P,S,N, the memory will be release automatically when the program ends? Thanks [CODE]#include<iostream.h> class point { …  |
| | i am writing a program that is delcaring an array of 100 intger numbers and filling the array with random numbers us rand(). all i have so far is. #include <iostream> using namespace std; int main() { int random_integer = rand();  |
| | i have written some code for class diagram generator for a segment of given code in lex and yacc...but to draw the class diagram i need to interface it with visual C++..is this possible?? hw can i combine lex and yacc with VC++?? |
| | I have a compass that connects to my PC through RS232 @ 38400 BAUD. the compass outputs different "sentences" to send different kinds of data. Each sentence is a string that begins with a special header and ends with <CR><LF>. The string that I'm looking for is "$IIHDG,A,B,C,D,E*hh<CR><LF> where A, … |
| | Hi guys, I'm trying to implement Karatsuba multiplication in c++ using stl vectors. I have some problems with multiplication (addition and subtraction are ok, I've checked). I need to read data from the file, when the file looks like that: 3 // tells me how many pairs I have to … |
| | This program compiles and lets me select a letter from the menu, but then it just repeats the menu, it never outputs the statements that correspond with the letter chosen. Any ideas why? [CODE] #include <iostream> #include <iomanip> #include <fstream> #include <cstdlib> using namespace std; //Function Prototypes void accept (); … |
| | Hi all, I am tryin to differentate an equation and solve using C or C++. I need a start, n i m not getting much information from web even..I am curous hw MATLAB does that...i m positive that LAPACK has a no subroutine for differentiation. Appriciate your response Thank you  |
| | I can inject dll in my compiled exe but dll loses his mind and I don't want it :( I use this commands IDR_DLL1 DLL "libmysql.dll" #include <tlhelp32.h> #define IDR_DLL1 128 HEAPLIST32 PE32; HINSTANCE hInst = (HINSTANCE) GetModuleHandle ( NULL); HDC hdc = GetDC(hwnd); HDC hdcMemRes = CreateCompatibleDC(hdc); HRSRC hRsrc … |
| | would the code below work for an hash table as in searching prior to inserting part... would it actually step through the table as in through the nodes then to whatever cells the nodes point to ... i have no other way of checking just yet .. coding still in … |
| | fatal error C1075: end of file found before the left brace '{' ANY IDEA WHAT MAY BE MY PROBLEM?? |
| | Hello, In the following code below i have 1 method that fills a array with 11 random value's.(wich works as intended). My question is how do i take each generated random value created in the array, and perform a calculation with each of those values? (preffered in a new method). …  |
| | My program keeps crashing when not in debugging mode. So now i'm debugging manually, or well, log everything to find where it is crashing [code=C++] Oldproc = (PROC)SetWindowLong(Childs[1], GWL_WNDPROC, (DWORD)EditProc); cout << "Oldproc\n"; SetFocus(MainWnd); cout << "SetFocus() Done\n"; cout << "DIRECTX:\n"; DirectX = new DIRECTX(); // Creating DirectX cout << … |
| | I’m writing a code on microsoft visual c++ 6.0 for load *bmp file and save it to *bmp file too. But i got stuck on save to *bmp code. Help me please.. void WarnaToRGB(long int warna,int *Red,int *Green,int *Blue) { *Red=warna&0x000000FF; *Green=(warna&0x0000FF00)>>8; *Blue=(warna&0x00FF0000)>>16; } long int RGBToWarna(int Red,int Green,int Blue) … |
| | Hi, is it possible to construct a pre order binary tree? i know how to do a pre order traversal. but constructing a binary tree using that i am not sure what it mean? what is the purpose of doing a pre order construction of binary treE?? please advise |
| | Hi, I have to do a recursive merge sort here. I got the merge sort done (thanks internet...because my book was useless), but I have to print the sublists as output. Here's the instructions: [COLOR="Green"]"The program must first display the list to be sorted. Then it must display the sublists … |
| | I am writing a adler32 code to compute the adler32 checksum of a string. On the net I came across various sample codes: I did not understand some code entirely as <b>it has additional code</b> marked in bold below apart from the basic implementation of the adler32 logic. I did … |
| | Hey Everyone, im struggling with this C++ assignment that my instructor assigned so i appreciate all the help that i can get. I have to read in the data from the text file and store it into parrallel arrays. My Text File looks like this: Darwin 103 04 20 2001 … |
| | Alright... so I found numerous examples on the proper way to suspend and pause threads but none really relate to my problem. I have a thread which runs in the background of my game which does all the simulation of moving players, calculating spaces and ect... I have a pause …  |
| | [code] #include <windows.h> LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam); int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int iCmdShow) { WNDCLASS myWindow; myWindow.cbClsExtra = 0; myWindow.cbWndExtra = 0; myWindow.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); myWindow.hCursor = LoadCursor(NULL, IDC_ARROW); myWindow.hIcon = NULL; myWindow.hInstance = hInstance; myWindow.lpfnWndProc = WndProc; myWindow.lpszClassName = …  |
| | // hi guys actually i need some suggestion or help .. i want to add STRING capability in this following Queue program. currently it just eccepts the chars . so if somone can help me out in getting the String output. thanks [CODE]#include "stdafx.h" /***** Structure template *****/ struct list{ … |
| | How can I determine position and size of rectangle on my image and fill rectangle with my texture using System.Drawing class or something else? Basically I have to change the color of the particular part of an image on button click. Any idea how to do this? |
| | Hi, I am trying to use the "partition" from STL algorithms. I get the following error: [CODE]error: no matching function for call to ‘partition(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator<int> > >, __gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator<int> > >, <unresolved overloaded function type>)’ /usr/include/c++/4.2.1/bits/stl_algo.h:2098: note: candidates are: _ForwardIterator std::partition(_ForwardIterator, _ForwardIterator, _Predicate) [with _ForwardIterator = __gnu_cxx::__normal_iterator<int*, std::vector<int, …  |
| | Hi people,in the assignment I was give the main function and was told to write a class, and the output is supposed to be like this: BLANK(0,0) Destination (6.2,16,7) BLANK (45,0) Destination (6.2,33.4) The x coordinate of source is:45 The y coordinate of source is :33.4 The label of point … |
| | Im using xcode to write my program. Every time I build and run the program it will do everything fine, until the end. It keeps giving me an answer of 0 no matter what i put. Need help to figure out what im doing wrong thanks in advance. [CODE]//price_converter #include … |
| | I am a little unclear on what is happening here and if it's even necessary. [code] ICOMInterface** pICOMInterface = new ICOMInterface*[reserve]; for(SIZE_T i = 0; i < required; i++) pICOMInterface[i] = new ImplementingClass; for(SIZE_T i = (reserve-1); i >= required; i--) delete pICOMInterface[i]; [/code] I'm trying to get a set … |
| | [CODE]#include <iostream> template<class T1, class T2> class TwoThings { T1 thing1; T2 thing2; public: TwoThings(T1 t1, T2 t2) : thing1(t1), thing2(t2) {} template<class T3, class T4> friend std::ostream& operator<<(std::ostream& os, const TwoThings<T3, T4)&); }; template<class T1, class T2> std::ostream&::operator<<(std::ostream& os, const TwoThings<T1, T2>& tt) { std::cout<<tt.thing1<<' '<<tt.thing2; return os; } … |
| | Which would be considering a better coding style, this is for a merge sort in case you are wondering what I am doing with this line of code [CODE] int j = 0; // used to track for the temp array earlier in my code // reset it to be … |
| | I am doing an C++ assignment on customizable scientific calculator. I wish to ask how to write a program that can automatically identify the variables when i load a formula? for example, when i input a formula: x + y the program will display: x? y? |
| | Hi, I've had a quick look through this forum and can't really see anything to help. I've got a basic but fair knowldge of C++ but I'm unfortunately not very good at putting my knowledge into raw code :D. I'm currently doing an assignment to read data from one of … |
| | Good Day Folks! I'm having a difficult time getting this operator overloading function to work. I have try various syntax to get it to work. When I run the following code I get this compile error. [COLOR="Red"]g++ -Wall hmw6.cpp -o driver set.h: In instantiation of `correaj::set<int>': hmw6.cpp:9: instantiated from here … |
| | hello there. there's an error in my program that I cannot identify. Every time i call a function for my declared variable of type Stack, there will suddenly be a run time error. I really don't get what's wrong with my code because my implementation seems to be right but … |
| | Hey guys! I must have some sort of logic problem that I'm just not seeing. I just want to read a file into a 2D array. The dimensions of the array are given by the very first line of the input file. Everything works hunky dorey except that when I … |
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