49,760 Topics
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| | Hello! I am using BCB and I really need a help I have to fetch the value from each row in a table and I know I have to add a loop,but when I read the buffer-it takes only the firs value in the firs row in the field and … |
 | I am confused by the use of an un-named namespace and its practical applications. The C++ Programming Language states that. [code] namespace { //Content } [/code] [b][COLOR="Green"]is equal to [/COLOR][/b] [code] namespace $$$ { //Content } using namespace $$$; [/code] Where $$$ is a unknown and random name. However I …  |
 | Hi, I'm looking for an open source c++ compiler to embed into an ide project I'm working on. I'm using Visual C++ express 2008 and would like to know what you's recommend as I have heard of gcc and MinGW but don't know what is best and EASIEST as they … |
| | Hi all, I am new to threads in c++, and I must use the pthread library. The documentation is easy to understand, but there is a more general aspect that I am missing. My question is: Is it possible to give a pointer to an object's function as argument to … |
| | Problem Statement: Writing and Reading student data in a file. Detailed Description: Write a program in which you have to: 1) Create a text file "Student_info". 2) Using Code Write the following data in it: Roll NO Student Name Class 101 Ali Raza BS(CS) 102 Usman MS(CS) 103 Faizan BS(CS) … |
| | Hello everyone. I am new to C++ and, I guess trying to pool task that is to advanced. I have a MDI application written in PowerBuilder. One of the child windows in that application has MultiTab control with several tabs on it. What I’m trying to do is to add … |
| | Hi I am using eclipse under ubuntu for my work. I am calling a function with specified arguments. It builds correctly but while debugging it stops at the call giving the error as "no source available for function()" [code] int f1(a1,a2){ //some description here } int main (){ //call f1 … |
| | Hello! I am using BCB and I really need a help! I have to fetch the value from each row in a table and I know I have to add a loop,but when I read the buffer-it takes only the firs value in the firs row in the field and … |
 | [ICODE]#include <iostream.h> main() { int n, k = 5; n = (100 % k ? k + 1 : k - 1); cout << "n = " << n << " k = " << k << endl; return 0; } [/ICODE] How the value of n become "4" ? …  |
| | [CODE]string source; char *src = (char*)(source.c_str()); LPCWSTR lpszsrc = (LPCWSTR)src; Handle h= CreateFile(lpszsrc,.........); if(h==INVALID_HANDLE) printf("Error occured") return 0; [/CODE] [B]The above code segment always shows invalid file handle.I know the reason is my LPCWSTR conversion is not correct.How to make it correct.?[/B] |
| | I know that it returns the remainder but what happens when say : x% y, where x,y is int and x<y. I see that results in x; For example, 3% 101232 = 3 and similarly 3%y, where y is greater than 3 yields 3. Why is that> Just wonder the … |
| | Hi guys, I am making a memory game for my school project and i just have a few things that i would like to add to it to make it better. In my game, i have a 5x5 grid that has letters hidden by $ underneath. So when the user … |
| | Hi, i made a display()function that uses level-order traversal of the tree to display nodes level-by-level.I was told that I needed to put a queue class in my project. the hint was to put the queue in the root, do regular traversal but when we meet the marker, get() the … |
| | Hi, I have another question. This one is about header files. I have a header for a player and the opponent of my battleship game. They way I have it set up, the opponent needs a player object to make a move, and vise versa. This is what i have. … |
| | Hello Guys, I've tried my best but it won't work. I'm trying to read an integer from a txt file and return the whole line where this integer resides. So, for example, in my txt file, if I have a line: aaa bbb ccc 100 bb 9 and I type … |
| | Hello, I'm writing a program for class that holds information from a parking garage and calculates the cost of parking for each vehicle and the total revenue generated. The code I've written uses a struct Car which contains variables for `Tag#(string)`, `Make(string)`, `Cost(int)`, `Time in(int b/w 1 & 24)`, and … |
| | Hello, I'm new here. I am trying to make a program that simulates the game Lotto. I have managed to get it to input numbers, but, I cannot figure out how to stop it from having the same number appear twice on the same line. Below is what I currently … |
| | Hi all, Class assignment is to list all numbers between user input. I have this much, but have no idea how to get it to list the numbers between them. I know this is simple, but it still eludes me ;) Thanks in advance! [code=cplusplus] #include <iostream> using namespace std; …  |
| | I want to enter password in asteriks and compare it from the file. I compare it but i cannot able to show it in asteriks.If someone knows please solve it ? |
| | Hi I'm having a very basic newbie problem, The compiler forces me to do a strdup (because of cons correctness), can I void the extra line in my code, and then I cant seem to update my array after the funciton call [CODE=c++] void fix_name(char *name){ if(name[strlen(name)-1]!='/'){ char *tmp = … |
| | I have problem to start. I need algorithm for program that prompts the user to input a sequence of characters and outputs the number of vowel, using user-defined value returning function Vowel. Please help  |
| | Hi, I am a new user. I was wondering if there is a way to have a alias to a pointer such that the alias is read only (I mean not the the variable it points to is not modifiable) I have explained with an example (code is given below …  |
| | Hi, I'm new to C++, I learned to program in Java first. I'm having trouble getting this to work. I'm writing a text based version of battleship. It was going well until i tried to set the size of the ship. I'm using an int array to check to see … |
| | DLL crashes with release EXE. I have a client application which tries to load a dll when I bring up it. But it crashes the exe now. With debug exe it loads without any problem. Has anyone faced this kind of issues(release exe crash while dll load)? Anyone has any … |
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| | Hi, I have been learning some c++ with a friend and saw a [URL="http://www.youtube.com/watch?v=nY8z5Eh-kcg&NR=1"]youtube video[/URL] where there were some features I just couldn't find in my version (express edition). I have to ask in which version of Visual Studio 2008 does the Project type [I]Windows Forms Application[/I] appear in where … |
| | Hi all, I working in VC++. I have a void pointer. I am assigning a memory block to it using malloc(). void* buf_ptr = NULL; buf_ptr = malloc(1428480); I am filling this buffer using fread(). and I want to index this buffer (buf_ptr) to acces its data. How can I … |
 | [QUOTE]In function `DefaultDialogHandler::handleCommandString(CommandString&)': /home/ws14/Desktop/trunk/test/test1/test2/test3/test4/DefaultDialogHandler.cxx:343: undefined reference to `SipDialogPublish:: SipDialogPublish(MRef<SipStack*>, MRef<SipIdentity*>, bool)' collect2: ld returned 1 exit status[/QUOTE] line 343 here: [code=cpp] MRef<SipDialogPublish*> pub(new SipDialogPublish(sipStack, phoneconf->defaultIdentity, phoneconf->useSTUN ));[/code] Can someone help me about this error...Please explain to me what is this mean..and how can I solve this one. thanks in advance …  |
| | Hi I am reading a excel file & grabbing certain elements out of the file to store in arrays. I know how to do it, but can you tell me if there is a more efficient way to do this. This, meaning, grabbing certain elements out of a line/string. Inside …  |
| | how can i cast a string to int when i have this [code=cplusplus] //input problem numbers cout<<"\n""enter the numbers"; //numbers represents what they input string numbers; getline(cin,numbers); //position represents at what location value comma is int position; while(numbers.find(',') !=string::npos) { //print out what the user inputs //used to split up … |
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