51,593 Topics
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| | Hi everyone! I just want to have random numbers which are unique. For example I want 5 unique numbers for a lottery game I am trying to make, nothing special just a console game. I was thinking of using loops and dead long boolean algerbra lines of || (OR) and … |
| | Could anyone recommend some higher-level c++ programming classes that are either online, or local in Austin, TX, that a 16 year old can enroll in? All my school offers is basic java, and ive tried the University of Phoenix online, but 16 is below their enrollment age. |
| | Hello all!! Im a newbie when it comes to C++ and I am constructing a program that, a. reads a file called weatherdata.txt, that contains the type of weather, number of years, then the average data for the months(i did three years) b.The program displays the informations for the months … |
| | I'm trying to create a function that draws with the mouse using allegro. Here is the original code: [code=cplusplus]int SCREEN_WIDTH; int SCREEN_HEIGHT; BITMAP *buffer; int sandcol; int pthickness; int mx, my, mx2, my2; void ThickLine(BITMAP *bmp, int x, int y, int x_, int y_,int thickness, int color){ int dx = … |
| | Hi.. I'm a beginner and just study programming. I have to make some random number. I found many solution in this site, but does'nt seem to be like i want. Please see this [URL="http://lh6.ggpht.com/_T3iApStJb64/SnMJmXJd0WI/AAAAAAAAASM/z5jEJagUjz4/s144/sudoku.jpg"]screen shot[/URL]. I have to make some simple program like sudoku game. And must put random number …  |
| | Hi, I've tried to output pointer in decimal but can't do it [code] int a = 10; int* p = &a; cout.unsetf(ios_base::hex); cout.unsetf(ios_base::oct); cout.unsetf(ios_base::dec); cout << showbase << dec << p << endl; [/code] it still shows this output in hexadecimal format. Any reason why this doesn't work. Thanks in … |
| | My problem is this. I am making a script engine using lua 5.1.4 for a game engine. At some point I want my script to be able to create an event for example a InitializeEvent (there are other events) which will be done through calling this method: [code=cpp] int ParticleSubSystem::GetIniEvent(lua_State* … |
| | so I was wondering how to push int's into an array. In other languages that I learned, I can just call the push() method. But looking around, people say that I need to use priority_queue. What is it and can I use it in Allegro?  |
| | If I delete a pointer, does it delete the data in the current address or all of it? example: [code] bool *dat; dat=new bool; dat=true; ++dat; dat=false; delete dat; --dat; [/code] if I printed dat, would it return true or just a random address?  |
| | Hi. Is there an alternate solution for variable variables in C ( or C++) like $$ in Php?  |
| | I want to write a program to read a audio file and classify the various symbols into the number of times they occur , I was hoping i could use a switch statement and classify the 256 symblos but now i've learnt the standard ascii set is only from 0-127,so … |
| | [code=.cs] using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace WindowsFormsApplication1 { public partial class Form1 : Form { double no1, no2,ans; void commonEvent(object sender, EventArgs e) { Button b = (Button)sender; if (b == btn0) TextBox1.Text += "0"; else if (b …  |
| | My problem is this. I am making a script engine using lua 5.1.4 for a game engine. At some point I want my script to be able to create an event for example a InitializeEvent (there are other events) which will be done through calling this method: [code=cpp] int ParticleSubSystem::GetIniEvent(lua_State* … |
| | Hi, I've written some fnc and when I tested it it works perfectly but when I switch from debug mode to release mode I'm getting error: Intrisinc function, cannot be defined. Any idea what's wrong? [CODE] typedef unsigned int u_int; int strcmp(const char* s, const char* s1) { u_int size_s … |
| | Hello, I like to study the C++ language. explain the basic concepts. |
| | Hai , For that last two hours i have been troubling with a problem. I want to get the modified date of a text file. i wrote a sample program , worked fine. But when i attached this program as a function to my actual application , it shows the … |
| | here's a function I tried to write that reverses the order of a c-string [code=cplusplus] void reverse(char *wordPtr) { char revWord[SIZE]; int count = 0, // index counter newSize = 0; // to count word size while (wordPtr[count] != '\0') { newSize += 1; count++; } cout << "The size … |
| | hi im new in this site and i have a problem on making a c++ program.. i can't understand it well.. can someone help me please.. im willing to understand on what will u teach on me..  |
| | Ok, I've tried literally over 100 things and still can't figure this out. I want to add strings that I've loaded from a text file to a list box. Here is my coding: [code=cplusplus] vector<string> spnV; //this is a global variable BOOL LoadTextFileToEdit(LPCTSTR pszFileName) { ifstream inStream(pszFileName); if(!(inStream.is_open())) { MessageBox(NULL, … |
| | Hello all! I am typing in some code from an example in my book, but it shows the absolute value symbol, I believe, looking similar to " l l ", but it can't be just to lower case Ls spaced apart like I just made that...or is it? If not, … |
| | i face a problem, im doing a programing that program into the PIC16F684. im doing a digital clock, now i only able to show the second value that display 1 to 60, i dont know how to do the minute value. im using while loop. [code=c] while(1 == 1) { … |
| | I am new here and this is my first post. I have a question that I can't find on google. I'd be grateful if you could help me. I have written many programs dealing with arrays and wanted to know how can I validate an input. Say I have the … |
| | I am using dev-c++ with allegro here is the code: [code=cplusplus]#include <allegro.h> int SCREEN_WIDTH; int SCREEN_HEIGHT; BITMAP *buffer; int main(int argc, char *argv[]){ allegro_init(); install_mouse(); SCREEN_WIDTH = 620; SCREEN_HEIGHT = 240; set_color_depth(16); set_gfx_mode( GFX_AUTODETECT_WINDOWED, SCREEN_WIDTH, SCREEN_HEIGHT, 0, 0); show_mouse(screen); buffer = create_bitmap(SCREEN_WIDTH, SCREEN_HEIGHT); putpixel(buffer,300,300,4); blit(buffer,screen,0,0,0,0,SCREEN_WIDTH,SCREEN_HEIGHT); while(!key[KEY_ESC]){ //do stuff clear_keybuf(); } … |
| | here is what i have so far, it compiles and runs great except for the fact that when i enter 'n' it doesn't stop the loop, any help is greatly appreciated! [CODE]/* Write a program that prompts the user for two numbers – the dividend and the divisor – and … |
| | I am working with traversals for the first time and am running into some errors with my them I am just going to post my preorder code because I am gettin the same error for post and in order. The Error: BSTree.h: In member function âvoid BSTree<T>::printPreorder() const [with T … |
| | please provide me codes how to construct circular matrix as below 1 2 3 4 12 13 14 5 11 16 15 6 10 9 8 7 |
 | How do i print the following number pattern(Triangular pattern) ............1 .........1 2 1 ......1 2 3 2 1 ...1 2 3 4 3 2 1 1 2 3 4 5 4 3 2 1 |
| | here is the simple code: [code=cplusplus]#include <allegro.h> #include <iostream> using namespace std; int FindArea(int,int); int main(){ int lenghtOfYard; int widthOfYard; int areaOfYard; cout << "\nHow wide is your yard? "; cin >> widthOfYard; cout << "\nHow lond is your yard? "; cin >> lenghtOfYard; areaOfYard= FindArea(lenghtOfYard,widthOfYard); cout << "\nYour yard … |
| | Hi all, When the user enters a word, isKnownWord() checks whether the word is in the dictionary but even when I enter a word which I know is in the dictionary, into the terminal, it always outputs no! Can somebody please explain why it is doing this? isKnownWord in sc …  |
| | Hello people. I have a favor to ask. My programming challenge is to write a program that uses a structure named movie data to store the following, title, director, year released, running time. this program should create two moviedata variables store values in their members, and pass each one in … |
| | I think I master the basics of C++ that good I can move, not all though there are many things still I don't know of course. I've made applications with mysql and made my own little roleplaying game and some calculator like things. Basically noobie like programs with no graphics …  |
| | Hi All, I'm a beginner in C and C++, and I get a "Stack Overflow" problem when I compile my code. I use visual studio 2008. My code uses some library, that has some header files, and some .cpp files. The library basically helps me in getting a random number … |
| | 1. Write a C program to read a list of books from a file and create a linked list to store them. The purpose of this program is to keep track of the books kept in a shelf. The shelf is a three-tier shelf and each tier can store up … |
| | i'm tying 2 describe my problem here.plz solve it for me.. 1. generate a random number b2in 0 and 1 (r); 2. do t=r*2.5 ; 3. do w= t/100 4. keep track of all t1,t2,t3.... in an array and do the sum S=(t1+t2+t3......) ; 5. repeat steps 1,2,3,4, till S<100 …  |
| | Hi, I was assigned to study and understand some code and I was told the major problem with the program was poor performance. Here's the bottleneck: A global data set is maintained. This data set is updated regularly. Then there are threads that have to do some processing using a …  |
| | Hi everyone, please can anyone show me how to show a progress bar while copying a file. I tried using SetTimer() but i does not work the way i want it i.e the file gets copied after the given time has finished. |
| | Hi all, can you please help me solve these errors I am receiving: q2.cpp:127: error: expected primary-expression before ‘*’ token q2.cpp:127: error: ‘wordPointer’ was not declared in this scope print function which is contained within the sc class: [code] void printDict(struct wordRecord *wordPointer) { // Code omitted to step through … |
| | Hello, I have a question about bitwise operators, especially shifting. Suppose we have: [code=C++] #include <iostream> using namespace std; int main() { unsigned i = 2; i<<=2; cout << i << endl; } [/code] unsigned i = 2 in binary is 0.......00010, if we shift 2 bits to the left … |
| | I'm having an odd problem writing some template classes and placing the implementation in a separate .CPP file - specifically I keep getting the following errors: Error 1 error C2143: syntax error : missing ';' before 'List<T>::begin' Error 2 error C4430: missing type specifier - int assumed. Note: C++ does … |
| | hello , first i want to say that im very new at c++ , i managed to create a very simple program through searching the internet , this little program involves running a certain exe file with parameters : (e.g: "c:\folder\file.exe" -parameter1 -parameter2) i am using the system() function to … |
| | Hi, I've been trying to read the file content from the file path entered by user at run time. However i always end up in error. Help needed... char name[100]; ifstream infile; cout<<"Enter filename to open"; cin.getline(name,100); infile.open(name); if(!(infile.is_open())) { cout<<endl<<"File Not Found"; } i'm not using relative path, instead … |
| | okay, i wouldnt be asking for help if i didnt need. im completely stuck and have no idea HOW to fix it. my teacher didnt really teach how to figure out these things, he basically left the last assignment as a "teach ourselves" moment. anyway...whole point of the assignment is … |
| | there is something i want to ask about this [code] LPDIRECT3D9 pdirectX9; [/code] I understand this is a pointer but why do we not use the * like this [code] LPDIRECT3D9 *pdirectX9; [/code] when i look over my code it confuses me with a struct EDIT: doing some reading into … |
| | guys i'm asking for some help..i have an asgnment bout c++..our prof ask us to give 2 examples ech of the simple if prog, if else, if else if, switch, while, do while and for loop...tnx i'm just a freshmen student of bsit..tnx =) |
| | Hi everyone, Im working on a large scale audio program, and I got a question regarding namespaces: The main() part of the program includes my own headers, each named according to what part it plays in the program, eg: Audio.hpp , Midi.hpp etc. These headers will "load" other headers..? Is … |
| | I have this example file that I've been using to get used to the perks of Allegro, but the file is written in an earlier version of Allegro than 4.2.2. There are only a few errors, but I don't know how to fix them! I'll post the code and the … |
| | Hey, I've been stuck on this for a long time now and ive tried various things... i need to send multiple packets to a server for an infinite amount of time at an unknown rate, maybe 1 packet every 30 minutes, tor a few every 5 minutes... id like to … |
| | Hey, I'm trying to make a save function in API that will append to a txt file instead of writing over it. Can I get some help? Here's what I have so far: [code] #include <new> #include "windows.h" BOOL SaveTextFileFromEdit(HWND hEdit, HWND hEdit2, HWND hEdit3, HWND hEdit4, HWND hEdit5, HWND … |
| | I am working on an example for a class and the build succeeds, but when it runs, it just hangs and won't complete. Not sure what I'm doing wrong? [code] #include <iostream> #include <fstream> using namespace std; int main(int argc, char *argv[]) { istream *fin = &cin; if(argc > 1) … |
| | Hello, im having this annoying problem with trying to create a global class to hold all the global variables to be used in the form. This is my main function: [code=CPP] // car rental.cpp : main project file. #include "stdafx.h" #include "Form1.h" #include <string> #include <stdlib.h> #include <vcclr.h> #include "Globals.h" … |
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