51,593 Topics
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| | hello guys...I have this library file which is error free since it builds successfuly. Now when I include this file into a DLL (after setting all the neccessary paths), more than 95% of the 166 error are comprised of these two errors [CODE] error C4430: missing type specifier - int …  |
| | I'm creating a Sudoku game, and according to the rules of Sudoku, there cannot be the same number in any row or column. My question is this: How do I compare a value with an entire row or column in an array? For example: I have a 9x9 array that …  |
| | Hello this problem is from the beginner book C++ Primer Plus 5th edition.. The problem sounds something like this: Write a short program that asks for your height in feet and inches and your weight in pounds(Use three variables to store the information). Have the program report your body mass … |
| | I am suppose to use arrays where i read in data from a text file and i have to set these functions to it. any clues on how i would approach it. my main concern is how to read data from a file using class while using arrays. i know … |
| | i am having errors when i compile this code such as: main_class.h(31) : error C2228: left of '.x' must have class/struct/union 1> type is 'float' main_class.h(31) : error C2228: left of '.y' must have class/struct/union 1> type is 'float' main_class.h(31) : error C2228: left of '.z' must have class/struct/union This … |
| | i convert some opengl code from visual c++ 2006 to visual c++ 2010 i mean visual studio framework. problem is in visual studio 10 they r running but mainloop is not working, i mean windows r supposed to wait for key input but it shows and gone at instant. no … |
| | hi guys!! i'm just new in programing and i had a problem in c++ my prof give me a task... i need to make a program that looks like a casher system or restaurant system... i don't know howto start it..... so please HELP me!!!!! :(( |
| | Im supposed to sort a file in decending order using bubble sort into an array. My code does all of that but it repeats the sorted array 50 times instead of just listing it once. This is a C ++ file on Dev. Thanks for your help, it's due midnight … |
| | Hi guys, I am looping through an array to print the values I entered in another loop before. The first method (showNombre()) returns a char array, the second one and Int. Problem is my second one showEdad() is returning the address of the int and not the value entered before. …  |
| | All right this is easy and for some reason im having trouble. Im workng on a Pig Latin program but right now all I want help with is getting an entire sentence to print out. I first tried to do this [PHP]char pig_latin() { char sentence[100]; printf("Enter a sentence\n"); scanf("%s", …  |
| | A magic square is an N by N array of integers. The sum of the values of each row, each column, and the main diagonals are equal. Write a program that reads the size of a square, then each row, and verifies if the square is a magic square using … |
| | Hi, I have a question regarding VB and VC++ connectivity. Can a program, written in C++/VC++, take input from a module written in VB? Someone please help me.....  |
| | hi i have a class with a member which is a pointer to an object on the heap. (the object is created from outside the class and is passed to it as a reference in the constructor). when i try to access it from void functions, everything is ok. but … |
| | I'm just wondering if someone could point me to some sources on linked lists. I'm trying to make it so the user inputs how many they want to add to the list and the list will stop after that amount. I'm just looking for some examples on it to help … |
| | What is worng with this code? This code shows... setw.obj : error LNK2005: _main already defined in filel.obj Debug/filel.exe : fatal error LNK1169: one or more multiply defined symbols found Error executing link.exe. filel.exe - 2 error(s), 0 warning(s) [CODE]#include <iostream> using std::cerr; using std::cout; using std::endl; #include <fstream> using …  |
| | Okay, so my assignment is to overload the following operators and use them in main: +, -, *, /, ==, !=, >, <, <=, >= and these friend functions: >>, << Now, for the assignment our instructor gave us a program with a completed header file, main, .cpp, etc for … |
| | I'm having a little bit of trouble. I have been working on this code for a while and no matter what I do I just can't seem to align the data correctly. I can really use some help. The information for the stocks and the output of the program is … |
| | Hey guys, it is possible to program a speech recognition in C++ without the Microsoft Speech SDK? |
| | As an assignment, I have been ordered to program the game Breakout/Arkanoid. We have to implement a class hierarchy starting with an Entity. We then expand this class to a PlayerEntity and an EnemyEntity. Then PlayerEntity is expanded to a PlayerBall and PlayerPaddle. EnemyEntity is expanded to EnemyBlock and EnemyProjectile. … |
| | [CODE] #ifndef HYS_MAIN_HEADER_H #define HYS_MAIN_HEADER_H #include <windows.h> #include <windowsx.h> #ifndef HYS_GLOBAL_VARIABLES #define HYS_GLOBAL_VARIABLES namespace hys { const short Null = 0; const bool True = 1; const bool False = 0; }; #endif // HYS_GLOBAL_VARIABLES #endif // HYS_MAIN_HEADER_H [/CODE] I want to avoid using macros as much as possible (C++ … |
| | ok here is my project here so far: Main.cpp #include "Library.h" void main() { //GENERIC WECLOME SCREEN cout <<"\n\nWelcome to Hollow's Eye\n"; cout << "<Programmed by Ethan Rigel>\n"; cout << "Hollow's Eye a once bountiful and gorgeous land but alas; the\n"; cout << "Mighty Dragon has destroyed and ravaged our … |
| | I'm having some trouble outputting a 2D vector as a grid in the Terminal. What I've done is create a class [ICODE]Grid[/ICODE] that creates a grid (in this case, a square grid), by creating a set of x and y co-ordinates whose spacing is [ICODE]dx[/ICODE] and [ICODE]dy[/ICODE]. I can then … |
| | hello to all. can anybody say that what is "..." operator in c++?? is overloaded operator? my teacher say that ... is a c++ operator!! (sorry for bad English, is not my firs language :P)  |
| | Hey all, I'm doing a project to create an address book which uses a binary search tree (AVL node) structure to store, search and sort the data. There are 14 main fields for each address contact. All fields can be represented as strings. The 14th field can have unlimited entries. … |
| | its just a prank.. but shows the recatngle arrays and falling pixels in a 25 x 25 region snapshot of yur current screen after 10seconds... then creates a form and further cascades the pixels.. any key press will end it.. but its autostart will wait another 10 seconds and cascade … |
| | Problem stated: Write the function flip_lines(). Open the input and output files file using the parameters. Return true if both files can be opened and processed, false otherwise. If both files can be opened, write each successive line of output in reverse order. (In other words, switch line 1 and … |
| | Sorry but I'm having a problem whit this function that is meant to let me edit records in a binary file. After I enter what I want to change an attribute to the file remains unchanged. [CODE]void updateStudent(fstream & file) { S students; long lenth; char snum[10]; char editChoice = … |
| | New to C++ but can read it I need to break out a string sent via the serial port. The string :"N,1,2,3,4,5,6" I figure if I can load the string into an array then I can refer to each item via the index. EG: Myarray[0] should hold "N" |
| | Is there any drawbacks for using "this" pointer? For example: [CODE] Window_Properties::Window_Properties(wchar_t* wnd_title, wchar_t* wnd_class_name): window_width(1280), window_height(720), window_X(0), window_Y(0) { this->window_title = new wchar_t[ wcslen( wnd_title ) ]; if( this->window_title ) { wcscpy( this->window_title, wnd_title ); } this->window_class_name = new wchar_t[ wcslen( wnd_class_name ) ]; if( this->window_class_name ) { wcscpy( … |
| | Hello everyone! I'm writing a program to evaluate an infix expression(for example: 1.5*(2-3)+(4.5-4)). To do that I'm using function void infix2postfix(char* infix, char * postfix, int insertspace) to convert an infix expression to the postfix one (for this purpose I'm using a stack to hold operators of infix expression); then … |
| | Hi, i have no idea how to go about doing this iv tried coding it a bit but just get very confused! if anyone could give me a hand or show me some sample code would be great. Thank you Create a program which: Implements a class called Queue: The … |
| | Guys, I really really need a hand on this simple problem that I think, for me, is a really really big problem. I'm using the compiler turbo C. I have all the codes working except that it does not go back to the main menu. Can you please check my …  |
| | [CODE] #include <iostream> int main() { for(int i; i<3; i++){ volatile char str[]="hello\n"; std::cout<<str<<std::endl; } return 0; } [/CODE] Why? its gives output [ICODE] 1 1 1 [/ICODE] |
| | okay, so i do not understand the building of a link list although my professor has explained during my tutorial before. I cant get the concept of insertion a node and deletion of a node. i tried building a linked list myself which is mostly memorised from books. therefore can … |
| | 1. * * * * * * 2. * * * * * * 3. * * * * * * * * * 4. * * * * * * * * can someone please send me the c++ codes for these four inputs |
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| | how to assigned comma and period in thousand number?? (ex. 1,000.50) in c++.. this is my sample code... [code]#include <iostream> main () { int x=0,y; cout<<"Coverting Dollar to Philippine Currency:"; cout<<"\n\nEnter amount of dollar: $ "; cin>>y; x = y * 45.00; cout<<"Php "<<x; return 0; }[/code] i want to … |
| | hello guys.... I am making small TAPI prof which tells about the incoming of the calls. - When first time I call, it detects the incoming call. - But when I drop the call and Call again, it does not detects it. here is small code that is responsible for … |
| | Hi, I'm new to c++ and programming all together and I really need help. So what I had to do was display a table showing the medals earned by several countries at a certain competition and their total medal count. Then I'm asked to write a function which returns the … |
| | Problem: Write the program columns that takes three command-line arguments. The first is the file to open, the second, the file to write to, and the third is the number of characters to display on each line. Read the input file, character by character, echoing to the output file, inserting … |
| | Hi guys, I want to build a DLL to access classes and functions from a Visual Basic program This right here is my class [CODE] class SimpleDevice : public IHaptikDevice { private: // Callback Related PVOID object; PVOID method; UINT32 timerId; // State HaptikData data; HaptikUserData userdata; public: static Vector3 … |
| | i have the following code...according to my book both the files should open...but it opens both the files...writes into them....but when i open them for reading....only one opens up....pls see where i am wrong....[CODE] #include<iostream> #include<fstream> using namespace std; int main() { ofstream fout; fout.open("country.txt"); fout<<"United States of America\n"; fout<<"United … |
| | 11/29/2010 S 2907 1 11/29/2010 S 9673 4 11/30/2010 A 4321 30 11/31/2010 S 9673 12 12/01/2010 N 5789 wind_chimes 13.54 17.83 12/02/2010 S 5140 5 I have string date, char type and int id, processNumber. myfile>>date>>type>>id>>processNumber; does not work..what should i do? |
| | Hi i was given an assignment that ask me to create a simple object viewer. These are the requirements: 1. Display simple objects such as cubes, cylinders, pyramids, etc. 2. Objects should be able to rotate around all 3 dimensions. 3. There should be a parent object class from which … |
| | [CODE] #include <cstdio> #include <cstdlib> #include <iostream> using namespace std; int main() { int x; cout << "Press the number 1, 2 ,or 3"; cin >> x; while (x!=1){ cout<<"Please try to pick a difference selection."; cin>>x; } if ((x==1) { cout<<"\nYou chose ";cout<<x; } system("PAUSE"); return 0; } [/CODE] … |
 | I am interested in being able to make a C++ win32 program that will simply display someones profile on a phpbb3 forum when they enter in their credentials. I've already made the GUI and other misc code needed for displaying the information, but I dont know how to make the … |
| | So I am a noobie when it comes to C++, I was wondering if anyone could suggest some resources so that I can learn what is going on? |
| | [CODE] /* Write a program which continueously calls a menu function which prints the following menu and returns to main the operation selected: 1.Add 2.Subtract 3.Multiply 4.Divide 5.Compare 6.Quit The menu function must keep printing the menu and asking for a selection, as long as the user enters an invalid … |
| | this is my infile's data..How do I get info into various data types? extraction operator? I know extraction works but the 5th line throws me for a loop..Thanks for help; 11/29/2010 S 2907 1 11/29/2010 S 9673 4 11/30/2010 A 4321 30 11/31/2010 S 9673 12 12/01/2010 N 5789 wind_chimes … |
| | I need to build a Windows program with Visual C++ that sends an SMTP email when an alarm condition occurs. I will be reading data out of several PLCs (automation controllers) with the help of active-x controls purchased earlier for other projects. New to Visual C++, (I'm mostly an old … |
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