49,761 Topics
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| | Hello I am working on a project for my roommate that involves reading in a text file that has x's and o's. The x's mean a wall and the o's mean an open path. The maze begins at 0,0 and ends at 15, 15. This makes the graph 15x15. I … |
| | Hi there, I'm having trouble with my program, which crashes when accessing values through a pointer. I've created a sample program that demonstrates my problem. Little synopsis: A Character has 2 attributes, a Bone, and a vector of pointers to Bones. I have a parser file that has functions to … |
| | I cannot figure out what this error message means? [code] #include <iostream> using namespace std; double max_array(const double x[], int max_val); int main (void) { int i, max_val; double x[max_val]; double array_avg, array_max, array_min; cout<<"Enter likely number of values: "; cin>>max_val; cout<<"Enter values seperated by white space:"; for (i=0;i<max_val;i++) cin>>x[i]; … |
| | Hello daniweb. Seems like this site is amongst the latest and the greatest in programming and software development. Anyways: [B]Attempt to compile with gcc: [/B]C:\>gcc -o ywordf ywordf.cpp [B]Error:[/B] ywordf.cpp: In function `int main(int, char**)': ywordf.cpp:30: error: no match for 'operator!=' in 'i != __gnu_norm::multimap<_Key, _Tp, _Compare, _Alloc>::rend() [with _Key … |
| | Good evening everyone, I would like to ask about copy constructors. I have been working on a base\derived class C++ program in which I am trying to compare the areas of a couple of Rectangles, and once I get past the errors I am currently having, I wouldn't mind comparing …  |
 | Does anyone know a function equivalent to GetAsynKeyState() ? to test if a key is pressed? i am trying to use it for a keylogger...and except windwos hooks,thanks  |
| | Is it possible to delete a non dynamic variable? Or is it automatically deleted when I construct a new one with the same name? [CODE] int N; int N; [/CODE] Is this possible? My purpose is, that I want to use an object from a class in a loop: [CODE] … |
| | I wrote winapi application.Which during creation defined : [code=c++] CreateGLWindow(hwnd,"OpenGL",800,600,16,fullscreen); CreateWindow(TEXT("button"), TEXT("Choose Shading Mode"), WS_CHILD | WS_VISIBLE | BS_GROUPBOX,10, 610, 300, 120, hwnd, (HMENU) 0,hInstance, NULL); CreateWindow(TEXT("button"), TEXT("Wireframe"), WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON,20, 630, 100, 30, hwnd, (HMENU)IDC_M_WIRE , hInstance, NULL); CreateWindow(TEXT("button"), TEXT("Flat"), WS_CHILD | WS_VISIBLE | BS_AUTORADIOBUTTON,20, 660, 100, … |
| | i made the following program but its not working can someone tell me where i did mistake [CODE]#include <iostream> #include <cstdlib> #include<cmath> #include<iomanip> #include <cstring> int myStrlen (const char* s); int main() { cout<<myStrlen; } int myStrlen (const char* str1) { char str[25] = "How"; strlen(str); return strlen(str); }[/CODE]  |
| | here is the other problem project im sure it's something small im missing. for some reason there is no print out for the most used letter demo.cpp [CODE] /* File Name: demo.cpp Chapter No. 12 - Exercise No. 9 Programmer: Carl Sue Date Last Modified: Mar 23, 2010 Problem Statement: … |
| | [CODE] #include <iostream> #include <fstream> // I/O #include <iomanip> // For setw() using namespace std; ofstream outputfile("output.txt"); // Output file const int MAX_FILE_NAME = 35; const double INTEREST_RATE1 = 0.010; const double INTEREST_RATE2 = 0.010; const double LEVEL_ONE_BALANCE = 1000.00; const double MINIMUM_PAYMENT = 10.00; const double MINIMUM_PAYMENT_PERCENT = 0.10; … |
| | This is a conceptual question to help with a program I am developing. It takes two lists from a file and compares them in parallel to see if they are anagrams. My question is how do I store these strings in a one dimensional array mapped to ASCII codes. I … |
| | hi , i am having difficulty in implementing the basic mathematic principle of inclusion-exclusion. I want to find the no. of numbers in a range from 1 to N which are divisible by another set of numbers where size of set <= 15. Now the problem i am facing is … |
| | hello guys, i want to know how to write a program that can read txt file. example like this, ClassAttendance1.txt and ClassAttendance1.txt contained Student ID number and name. i want to write a program that if i run the program will detect all ClassAttendance .txt and make a summary in … |
| | int *p; int *q; p = new int; *p = 35; q = new int; *q = 62; p = q; cout << *p << ", " << *q << endl; answers : a. 35, 35 c. 35, 62 b.62, 62 d.62, 35 |
| | I'm making a library for myself, and I keep getting that error :( Pib.h: [code=cpp] #pragma once #include "stdafx.h" #include <iostream> #include <string> using namespace std; class Pib{ public: void echo (int Text); void test(void); }; void Pib::echo(int Text){ printf("Haha: "+Text); }; void Pib::test(void){ cout<<"Text"; }; [/code] Main File: [code=cpp] … |
| | I see this topic has been hacked to death but it seems to be slightly different in each case. Anyway, I've been chopping away at this code for awhile. I realize that it is easier to overload the () rather than the [] which is what I was determined to … |
| | hi, sorry for the newb questions, ive got this part of a assignment its instructions are: "Define a class called Clock -it has a single, private, data member of type unsigned long called secs -it has these four public interface methods plus necessary constructors setClock() accepts nothing, returns nothing - … |
| | Hi everyone. This is my first post here at DW. I was just experimenting with programs and thus I am trying to implement [B]Bisection Method[/B] & [B]False Position / Regula Falsi Method[/B] into a C++ program. Once I am done doing these two, ill start coding the [B]Newton-Raphson Method[/B]. All …  |
| | Im getting the wrong output. In my while loop for the else statement I want it to perform the subtraction operation and then put that data on the queue pq2. I put a cout statement to make sure that the data is on the pq2 queue. However Im getting weird … |
| | Hi, I am working on a C++ select algorithm using the qsort function. I am suppose to first sort the array and then return the i-th smallest value, which is given by the stat value. However, I have no idea how to return the value from a void array. I … |
| | Hello guys, this is my first time in these forums, so I apologize for my bad English. Well, here's the problem: I need to get the frequency of integer numbers that are stored in a file, their range is from 0 to 100, their amount is unknown and depends on … |
| | i need a program that reads a paragraph of 6 lines of text. The user can enter extra spaces between words. The length of each line does not exceed 80 characters. The program should output the following: 1. The input paragraph without extra spaces between words 2. Average word length … |
| | Hi gurus, here comes the problem: N ambassadors discuss serious business at the circular table. Each ambassador`s attitudes towards other ones are described as N-1 float numbers between -1 and 1 (from hatred to love). Atmosphere between two neighbors equals the average of their mutual attitudes e.g. Amb1 likes Amb2 … |
| | I've been trying to make a program that can read some information from a file and store it in memory to compare with user input. It's sort of a quiz with organic synthesis. A synthesis is dived into steps so I chose to make a synthesis a vector of vector … |
| | How do I return to start (int main) in c++ example: int main() std::cout << "Haha, this is a loop"; (what will I type to make it go back to start and repeat itself??) |
| | Trying to write a very simple function that boxes in a hello world print out. I have been stuck here for hours now and would appreciate some help as the frustration is killing me. The print out should look like this. ////////////////////// / Hello World / / Hello World / …  |
| | very simple, is there any speed or memory diference beetwen this two whiles? [CODE] int x = 0, y = 0; while(x < size) { y++; array[x] = array[y]; x++; } [/CODE] and [CODE] int x = 0; while(x < size) { array[x] = array[x++]; } [/CODE] |
 | Hi everyone, I'm writing a code to get local ip address and send it to a server. I'm doing [B]socket programming[/B] and I'm trying to get Ip address of my machine, and send it to socket server. In other words, Let's say my ip address (which is the client), is … |
| | can anyone help me with my assignment about sequential access file?? i have attach 2 file..its about my assignment question.. |
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