51,593 Topics
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| | Hello, I really need help. If anyone could, please tell me what I'm doing wrong. Well, I'm making this program that asks if you're happy. Then if you don't answer yes, it will ask the question again until you do. I thought that it would be fun to have a …  |
| | Ok I have to make a 3-D array within a class and read from a file with input like this [code] 90312 Thing_1 12.34 100 25 // Shelf 9, row 3, bin 12 20705 Thing_2 54.78 24 25 10101 Another_Thing 123.45 183 4 [/code] There array is based off 9 … |
| | I got a problem when using mysql connector with wxWidgets my program crashes right when I start debugging, but it gives no compiler errors. Main.h [code]#ifndef __MAIN_H #define __MAIN_H #include <wx/frame.h> #include <wx/textctrl.h> #include <wx/button.h> // Mysql #include "mysql_connection.h" #include <cppconn/driver.h> #include <cppconn/exception.h> #include <cppconn/resultset.h> #include <cppconn/statement.h> class MainApp: public … |
| | I'm trying to figure out how to get info off of a 1 structure to use to get info from a second structure and use the info from the second to change the first. Here's some code hopefully explain it better. [code=c] struct weapons { string name; int str; }; … |
| | hey i really need help, how can i generate a simple coding of pythagorean table where it reads the upper right triangle? together, how to get table parameters, use nested loops (which prints out the raw list of all Pythagorean-candidates (do not need to store in an array) & how … |
| | Hey guys, I have written a recursive function mazeTraverse which finds the path of the mouse to find its food which is placed inside the maze. I am given a maze of of 15 rows and 25 columns. Mouse's starting position is (8,1)[eighth row and 1st column] and the food …  |
| | The following binary search code runs perfect . I feed values that exist in the array and it tells me at what location they are. But if i enter a value non-existent in the array it goes bad. It says number not in array and after that... [U] Any other …  |
| | I'm using system("color __"); and system("title ____"); in my code and I'm struggling on how to change them according to the input. eg. if the user enters he wants green background and yellow words ... i'm stuck with 2 variables (i would convert them to 2 and 6 [the numbers … |
 | Hi, I noticed a few snippets recently where a size_t variable was used for array indices, and after searching around I'm still not sure what the obvious advantage of using a size_t variable over a typical int would be.. To clarify, what would be the difference between this: [code=cplusplus] for(size_t … |
| | Hi! I am using the Microsoft Visual Studio to build a program that has several threads. The threads communicate among them reading a shared variable; thus, a thread is waiting: "while (variable == 0);", until other thread puts the variable into 1. That occurs more than one time in the … |
| | Hi I have a problem, I hope you can help me with. I have a number, which I need to compare to some values. I do not wish to go through all the values, and compare them individually, as I there are too many for it to be efficient. Neither … |
| | I've been trying to get started with sockets programming. However, when I try to use the getaddrinfo and freeaddrinfo functions, my linker complains that they are "not declared in this scope" and that they are "unused variables". I have checked the header (ws2tcpip.h) and the headers appear to be declared … |
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 | what is the difference between openGL glut and openGL? |
| | I'm a total newbie and.. with the code above.. What I want to do is have 10 dValue numbers, but if, of those 10 I only enter 5 values, the exe shouldnt ask me to enter all 10 and just add the 5 values I entered when I press the … |
| | Hi, How can I convert the TeMyEnumeration constants to integer values? See code below [CODE] typedef enum{ zero, one }TeMyEnumeration; typedef struct{ TeMyEnumeration myEnumeration; int myInteger; } [/CODE] I send this complete structure, byte by byte, using a memory pointer to some serial output. I want the myEnumeration variables also … |
| | Hi, I'm hoping someone can help! I'm writing a sign language tutor that displays a video of someone signing and then expects the user to record themselves performing the same sign. The program works perfectly when run through Visual C++ 2008 Express Edition. However, if the .exe file is run … |
| | help me with the linked list where we have parkinglot ,with class apassenger,class acar,class aParking area.the program should register passenger, driver,car also able to remove a car in parking area[code]limplementing a linked list[/code]  |
| | Well. I've been developing a small game. This is what I have done: I've created a Engine project, which has these files in it: Geometry.h Engine.h Engine.cpp Now, I've created another project, called Test, and it has only one file in it: Main.cpp. I've included the Engine.h by modifying the … |
| | I'm having some real problem with a list of objects. My objects in this case are called Aircraft & I've given them these features: [CODE] int flightNo; void setFlightNo(int i) { flightNo = i; } int getFlightNo() { return flightNo; } [/CODE] Ok, all good - until I put them … |
| | hmm.. i have just a bit of experience in c++ and i'm just coding a program to learn. it is a windows forms app and there are 3 forms in one same project. how do i get a textbox value from one form and use it as a variable in … |
| | [B]* please help me to download the file (inpout32) form the page ( [url]http://www.logix4u.net[/url] ) becuase : [/B] * when I opened that page , appeared there is error in page. * please put the file in this forum.  |
| | I'm working on a Project, which includes downloading some files from INTERNET, and the code language is C++, I'm using Codegear C++ Builder 2009, If anyone knows how to download a file using c++ code. please help me, I'll be greatly thankful if you provide a code snippet and then …  |
| | I am writing a database API in C++ and I cant seem to think of a good way to handle the errors. For example if certain error conditions are met I would like to set some sort of error flag and allow every class to check that flag. I have … |
| | I am inclined to suspect that Borland C++ compiler 5.02 is seemingly full of bugs. Even though my C++ codes could be bug free, it reported External errors on compiling and failed to create an EXE file to run. Thanks to Mr. Salem, I have successfully compiled the above codes … |
| | I am trying to create a program where it will read in the student name, nationality, and grades, and calculate their tuition fee based on those information. I began to write a bit of code by I have ran into some problems. When I try to run my code, the … |
| | i usually use Visual Studio 6 or sometimes Dev Cpp.. but, they can't show me the runtime and the memory spent.. i need that information, to make sure that my program is qualified.. can someone help me about cpp compiler that can do that? thx. |
 | hello every one.. i m a newbie and was going through structures.the code is as followes: [code]#include<string> using namespace std; #define n_emp 3 struct workerdb { string name; short age; int salary; }employee[n_emp]; void printdb (workerdb); int main() { int n; for (n=0;n<n_emp;n++) { cout<<"name: "<<endl; getline(cin,employee[n].name); cout<<endl; cout<<"age: "<<endl; … |
 | Hello, I would like to find out if there is a c++ library that supports fuzzy string search. If I have a list of words such as: hello, there, cool. But I search for 'Helo' I would get Hello. I assume this is a solved problem for spell checkers. Anyone … |
| | When you're done reading this feel free to tell me if I've completely misunderstood .NET As I understand it on Windows code can be compiled to IL which then allows it to be used from any .NET language like c\c++\c#, and basic. So could I, and if I can how … |
 | Hello all, I am taking a course in C++ and in Ada. Our professor has given us the choice to be tested in language profficiency in either C++ or Ada. The test format will be of simpler programming problems and more geared towards shortanswer concepts. I was wondering if anyone … |
| | i'm a little confused with the keypress thing.. this is how i write my code.. if(KEY_DOWN(VK_UP)){ // my statement ... } now what i want to achieve is, i want my statement to execute only once when i press up key. instead what happens is it keep executing till i … |
| | p1a.c: In function `main': p1a.c:20: parse error before `char' p1a.c:46: parse error before `char' p1a.c:47: `result' undeclared (first use in this function) p1a.c:47: (Each undeclared identifier is reported only once p1a.c:47: for each function it appears in.) p1a.c:47: `basechars' undeclared (first use in this function) |
| | Is it possible to call a .dll I made in C#, and use it in my unmanaged C++ code? If so, can someone show me an example of how this is done, or a link to go about doing it. I wasn't able to find much on google, and most … |
 | When debugging my code, I put a break point at this line: [code] std::set<unsigned int>::iterator it; [/code] When I step over that line, I get "Debugger reported the following error: cannot access memory at address 0x10". I am using KDevelop that ships with Fedora 11. I've used that line of …  |
| | Dear friends, I need a help with a Wait (Hour Glass) cursor. In my MFC program, I have the following code: [CODE] void CBookDoc::SomeMethod() { AfxGetApp()->DoWaitCursor(1); // display the hourglass cursor ... // Some stuff is done ... AfxGetApp()->DoWaitCursor(-1); // -1->>remove the hourglass cursor }[/CODE] I wonder why the cursor … |
| | Two lines in the codes below have been remarked out else compiling would fail: //arrcon[1]=*scon; //count << "arrcon[1] " << arrcon[1]; The intention was to assign character values to an array with 5 elements, each with a maximum 35 characters, declared as a string array, arrcon[5],[35]; I was trying to … |
| | I have filled up a List with many elements of "Hello". Now I wonder how it is possible to use MemoryStream to "chunk" this and append it to an existing file.("C:\\OutFile.txt") I have googled around on examples for 2 days without really understand how to do this. I have understand … |
| | when i compile, it gives the following error : Undefined first referenced symbol in file main /auto/usc/gnu/gcc/4.2.1/bin/../lib/gcc/sparc-sun-solaris2.10/4.2.1/crt1.o ld: fatal: Symbol referencing errors. No output written to a collect2: ld returned 1 exit status Can anyone please tell as to what's going wrong here.[code]I have some code where i want to … |
| | Hi, I need to use the borland c++ complier for making my college project. I use only linux and I am unable find the compiler. Any help will be much appreciated as I am stuck. cheers, Vishal p.s- Gcc and other compilers are not allowed for the project . |
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| | Hey i have this homework problem that i can't seem to solve. i have already did the rest of the program but i have to change the output of this program but i can't seem to make it work. the output they want is.. Home Owner Price of Home Seller's …  |
| | Hello everyone, I'm writing some code for an assignment that reads in a line of characters into a STL list, sorts them alphabetically and then has to reorganize them vowels to the front. Right now I'm stuck on the step of writing a function that accepts the list as a … |
| | I know their are some in C so shouldn't their be some in C++? |
| | hi i need some help with adding a bunch of random numbers. i dont understand how to add them all. heres the code: [CODE]#include <iostream> #include <cmath> using namespace std; int main () { int i,x; srand (time (NULL)); for (i=1; i<=10; i++){ x=rand()%10+1; cout<<x<<endl; } system ("pause"); return 0; … |
| | Hello everyone, I'm having a bit of an issue here. I'm doing a Knight's Tour program for class, and thought I just about had it until this problem popped up. While I was writing my code, I had some simple cout test statements after some of the function calls just …  |
| | I have a function like this: [code] bool MyFunction(dist) { if(dist < 1.2) { std::cout << "Passed test!" << std::endl; return true; } else { std::cout << "Failed test!" << std::endl; return false; } std::cout << std::endl; } [/code] gcc tells me "warning- control reaches end of non-void function". However, … |
| | i am tryin to make a c++ program to play tic tac toe.........there are some errors hope u guys can help me out......... [CODE]#include<iostream.h> #include<conio.h> #include<stdlib.h> char matrix[3][3]; void cou(void); int main() { int m,n; char ch='y'; while(ch=='Y'||ch=='y') { for(m=0;m<3;m++) { for(n=0;n<3;n++) { matrix[m][n]='\0'; int i,j,sum=0; while(sum<10) { if(sum==0) { … |
| | The following is the randomized Binary search tree insertion algorithm mentioned in sedgewick's book. "This function makes a randomized decision whether to use the root insertion method of Program 12.13 or the standard insertion method of Program 12.8. In a random BST, each of the nodes is at the root … |
| | i need help with this C++ array excercise.... it seem quite simple but im not sure what code i need to put where. help is greatly appreciated... Excerise:: [url]http://www.lhs.logan.k12.ut.us/~rweeks/cp1/array.htm[/url] |
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