49,761 Topics
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| | The problem seems pretty simple but I haven't figured it out yet. I'm using wxWidgets to make a gui and this function gets called when I press enter while in a text field. [code=c++] void Camera_Settings::on_exposure(wxCommandEvent &event) { wxString temp = exposure->GetValue(); char *value = (char *)temp.mb_str(); char *hex_string = … |
| | I have a very hard programming challenge and i need help... I have nothing so far, so im hoping somebod could help me build it... Im to write a program that uses a structure to store student name, student ID number, pointer to and array of test scores, average test … |
| | hi all, I m new to C++(but have a very good knowledge of C) and very desperately looking for some good programming problems that involves some object oriented principles of c++.Can anybody please give a link to such problems.  |
| | Hi guys. I have been working at this for several hours. I'm still a novice in C++. The program I need to write is suppose to calculate the day number for a given day represented by three type int values. It also needs a function that returns true if the … |
 | Hey everyone, I'm trying to make it so that my ^ operator is right justified within this binary expression tree. For example, 2^3^4 should be evaluated as 2^(3^4). So I should get 2^81, instead of the usual 2^12. Here is the code I have so far. Everything works, except the … |
| | My program must read a file and count how many times each letter comes up using vectors[27]. besides main there will be 2 required functions. int char2int(char arg) void display(const vector<int> & counters) the file has numbers to but those should be read as a O. need help please help! |
| | I'm almost done with my 2D dungeon game, but for some reason i cannot move when my program calls to move i cannot move ever when i set the Vitality to 100 it sets it to 0. When i remove the params and make it so it will move it … |
| | hi: please help me to find the code that convert nfa to dfa by using c++ and please send it to my email [email removed] thank you very much please help me now.....:icon_neutral:  |
| | Write a program that shows a constructor passing information about constructor failure to an exception handler after a try block. What do i really need to do ?  |
| | Hi there, Say I have created an ifstream object in main(): [CODE]ifstream [B]inData[/B]; // Create new input file stream object inData.open( "input.dat" );[/CODE] How could I then pass this object to a function, instead of having to recreate it there? I.e. what would the argument and parameter look like? Thanks … |
| | I'm unfamiliar with how to write recursive functions. Can anyone help me out here? I need a recursive function to see if date number 1 is greater than date number 2. If it is it returns true. If 2 > 1, it switches them and returns them like that. If … |
| | Hi Guys, I want to ask about these codes, i don't understand clearly. So to understand these codes detail what kind of books i have to read and tutorial i have to learn. Please guide me. [code] #include <windows.h> int WINAPI WinMain (HINSTANCE hThisInstance, HINSTANCE PrevInstance, LPSTR lpszArgument, int nFunsterStil) …  |
| | Hi, Following is the function which is giving me a segmentation fault. I do not know what is wrong in this code. I am counting the number of lines in the file. [ICODE] char f11; char c; int f12 = 0; FILE *ilfile; ifstream ficnf; int size_f = 0; int …  |
| | hey guys.. am learning c++ just started.. am not able to implement member dereferencing operators.. i know there basic definations and rules but...its like.. a clear picture is still not coming to my mind..as in how to make use of them.. please explain with examples.. |
 | Hey guys, What am I doing wrong here? sss.hpp [code=cpp] #include <fstream> #include <string> #include <map> namespace sss { using namespace std; class node { public: multimap<string, string> values; multimap<string, node> children; string &value(const string name, size_t index = 0); node &child(const string name, size_t index = 0); private: template … |
| | ok i have vc++ and i am making a form app and i am putting a progress bar in it but how can i hide it for like x seconds. is there a function for it? or something which hides the object temporarily . Thanks  |
| | Hi guys, trying to get a day number from 1 - 366 for a specific date. I've been working on this for a while. I can't seem to figure out. I'm not asking for an answer, just a push in the right direction. So far here is what I have … |
 | This is my next question: how to get a document from root? because I have this code: [code] myfile.open ("/home/ws14/Desktop/test.txt"); [/code] But I need to change the path home/ws14 if I change user. Thanks! |
 | Hey guys, I just began this project a few weeks ago, just something I like to play around with in my spare time (my real passion is psp game programming :D). It is an interpreted programming language I like to call BIO (for basic input output). I feel that my … |
| | Hi I'm only new to C++ and need urgent help with an assignment that's due tomorrow. I know this is frowned upon but I'm really stuck and don't know what to do. Can someone please point me in the right direction with this question? (A) Read the first name and … |
| | Write a program that uses inheritance to create various derived classes of runtime_error . Then show that a catch handler specifying the base class can catch derived-class exceptions? am i doing it rite this is my code : [CODE]#include <stdexcept> #include <exception> using std::runtime_error; class DivideByZeroException : public runtime_error { … |
| | Hi guys : i'm new in programming, i'm reading c++ by dissection and for chapter 2 i encounter with a exercise that i can't solve it,please help me on it. the program is : Write a program that finds the maximum and minimum integer value of a sequence of inputted … |
| | I am making a program that reads from a .txt file and outputs the names that are in my .txt file into an output file that the user specifies. My program compiles but then I get an error that says "int main(): Assertion `fin.is_open()' failed. Aborted" What am I doing … |
| | Hi, I'm trying a very simple code as below. #include <fstream> #include <iostream> int main() { ofstream myfile; myfile.open ("example.txt"); myfile << "Writing this to a file.n"; myfile.close(); return 0; } But getting following error on myfile.open statement... Debug Assertion Failed! Program: ... File f:spvctoolsicrt_bldself_x86crtsrcopen.c Line 308 Expression: ("Invalid sharing … |
| | So, I have to write a program that calculates the five number summary of a .txt file with 2 columns and n rows. A snippet of the file would be 23 7.8 27 17.8 39 26.5 41 27.2 From this I am trying to input the numbers into a vector … |
 | I need to have my program use a function to read in numbers from a file to an array, and pass the array back to my main program to be outputted/used by another function; however, I am getting an error(cannot convert from 'int' to 'int [100]'): Here is the relevant … |
| | Hello everyone! I am looking for a simple free c/c++ IDE which does not need to create projects in order to build applications. If possible, I would like something that has code completion on par with MSVC Intellisense, or NetBeans code completion. However, the most important feature I am looking …  |
| | Can anyone reccomend any good C++ books (available on amazon preferably). Im not a total newb (I know java, php and vb.net), i just dont know that particular language that well. A book which covers data structures and concepts too would be beneficial, as im on a comp/sci course atm, … |
| | Hey everyone. I'm new to the forums and to C++, and I was working on a program used to call data from a file containing various information about cars when I ran across the error: undefined reference to (and then it proceeds to list all of my declared functions). Here's … |
| | i am trying to get my program to cout only certain arrays but i keep getting 0's and bus errors and segmentation faults. i think i have the general idea but i cant find a way to fix this problem. [code] #include<iostream> #include<fstream> #include<cstring> #include<iomanip> using namespace std; void findvin(int[],string[],string[],int[],int[],double[]); …  |
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