49,757 Topics
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| | Hello, I am trying to implement a for loop which fills (and re-sizes) a temp matrix (temp_data) based on a column value criteria from another matrix (data). The data matrix comes from a text file which has the format: a b c d e f g h 1 i s … |
| | Here is the formula i'm suppose to use: i'm suppose to to write a complete program with a function using two parameters to calculate: x(!)^n, where x(!)^n = x!! ... ! use BigInts For the calculations ----- n times this wis what I have, i don't think it's right, if … |
| | I wrote a code to read the parity check matrix named "tannergraph" which is stores in a sparse format to save space. It is in the following form: Line 1: Number of Variable Nodes(VN) Number of Check Nodes(CN) Line 2: Column weight Row weight Next VN lines: degree of the … |
| | My problem is not serious, its just a question about the most beautifull solution. Maybe somebody has a better idea! I have a mathematical class having some numerical functions. It is convenient for me, and speed up the program, if I introduce a member array called "memory", and store the … |
| | I need help with understanding how to fix my for loop and the if tests. Originally, in the for loop, for the end value i had k<=3..but this is wrong because i need to loop to keep going until it passes the test. So i was told to try setting … |
| | Ok I got the code to work but with some errors. First when i print out the aorted array to the file it is sorted escept for one number in the beginning second it gives me a negative number whihc i believe is a pointer how can i fix this? … |
| | hi i want to read the joystick data to send through a socket. i try to understand the direct x example for joystick inputs but its difficult . if there are any solutions please reply or if there is a tutorial please send me links to joystick inputs  |
| | Hello. I am quite keen with the win32 api but am tired of the standard windows visual styles (XP/Vista/7) and am wondering how to create my own. Have googled but not found any information, just point me in the right direction. Thank you very much. |
| | Hello! Im having a problem with the following code structure. The code compiles without problems but when i start the program i get an "exception: __non_rtti_object at memory location...". In the constructor of the model-class i still can get the object information of the node-class through the base pointer. Once … |
| | Hi! I am making a project about doublepointers and inheritance. Have some small issues that should not be difficult to resolve, but I just cant get a grip of it. The task is to add two types of vehicles that have some of the same characteristics but not all. I'm … |
 | I'm trying to understand how static ints work within classes, and I've fallen on some code that I don't quite understand how the answers come out to be what they are showing. [code] // static members in classes #include <iostream> using namespace std; class CDummy { public: static int n; … |
| | i am a University student pursuing a degree in computer science, it seems as though i really suck at validating things... well I just don't really get the concept i know its conditions but i when i try one it always seems to crash my program I've been trying to … |
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| | Can some one give me some code on how to use windows.h..... im making my project, about ATM, i want to make it look good so i need some code on how the use windows header. I saw this person using a goto(x,y) code... and I saw his exe file. … |
| | I'm getting this error at the end of my program... [code] *** glibc detected *** ./a.out: free(): invalid pointer: 0x00617ca0 *** ======= Backtrace: ========= /lib/libc.so.6[0x684ac1] /lib/libc.so.6(cfree+0x90)[0x6880f0] /usr/lib/libstdc++.so.6(_ZdlPv+0x21)[0xc986f1] ./a.out[0x804ce2f] ./a.out[0x804973d] /lib/libc.so.6(__libc_start_main+0xe0)[0x631390] ./a.out(__gxx_personality_v0+0x7d)[0x8048de1] ======= Memory map: ======== 00110000-00111000 r-xp 00110000 00:00 0 [vdso] 005fc000-00617000 r-xp 00000000 08:01 687043 /lib/ld-2.7.so 00617000-00618000 r-xp 0001a000 … |
| | Hi, I would like to know if I could do this: if i were to enter 5 numbers, it would go like this: 5 4 3 2 1 I want to know if I can do it like: 54321 Basically I don't want the insertion to go to a new …  |
| | Hi; I have build an MFC application in Release mode using vs 2005 (windows XP) but when I run this exe on another PC (WInXP/Windows 7) with VS 2008 or PC without VS, it doesn't run. I used Visual C++ redictributionpackage and . NET service pack 2.0 but it works … |
| | Hello everyone, I am C++ beginner and I have a basic questions regarding classes Referring to the code below, I am trying to access x and y from the coordinate class in method abc after having run the place method. I hope this is clear Here is my code: class … |
| | In Excel, the columns are identified by a b c .... z aa ab ac .... az ba bb bc .... yz za zb zc .... zz aaa aab aac .... These identifications correspond to the numerical values as 1 2 3 .... 26 27 28 29 .... 52 53 …  |
| | This is the program i'm trying to develop. It's not an assignment or anything. I'm just a newbie trying out new stuff. But I'm getting frustrated with this. [CODE]#include <iostream> using namespace std; //========== struct ========== struct nodeType { string song; int rating; nodeType *link; }; //------------------------------------------------------------------------------ //========== function ========== …  |
| | Hi there, Looking for some advice regarding the following hierarchy structure: [url]http://i40.tinypic.com/9a1us0.jpg[/url] I'm storing base class pointers in a std::list in my program: [CODE=c++]list<Vehicle*>mylist[/CODE] Is it possible for me to use Pure Virtual functions in the base class? For example: [code=c++]virtual int getMPG() = 0;[/code] Seems fine, as all derived … |
| | please solve this question for me now.. thanks.. CSC1103 STRUCTURED PROGRAMMING Lab Test 2 Problem statement Write a program to read N data items into two arrays, X and Y, of size 10. Store the product of corresponding elements of X and Y in a third array, Z, also size … |
| | Hello i want to retrive information of various fonts used in an RTF file.so that i can use it in my RichEditCtrl class. |
| | Hi all, I am in the process of optimizing my code and I was wondering what the fastest way is to compute trig functions. I profiled my code and to my astonishment discovered that one of the most time-consuming processes is computing cos(theta) and sin(theta) using the implementation of cos() … |
 | Heh, well my daily project is near finished, and I was looking around for a way to get rid of punctuation from a character array. I looked through the web a bit, and only found immensely complicated formulas which I did not feel like dealing with. So my question is: … |
| | Hi, I've been trying to create an accessor for my class that returns an array of structs as well as another that returns just a simple char array, but I can't seem to figure out how to do it, I had assumed it would just be [CODE] Example_Struct Foo::GetStructBar() { … |
| | ok guys I need your help. Im still new to C++ and what I need to do is read a .txt file into an array. The file consits of number like this ie 345 55555 56788765 5444 333 22 3 55656757 etc.... then I need to sort them using the … |
| | As part of an assignment, I am to create a function to complete the program....I am very new to arrays and would like a little help, code as follows [CODE]// NAME: // ASSIGNMENT: pj70101 - ComputeAverage Function // COURSE: #include <iostream> #include <iomanip> using namespace std; //========================================================= // put your … |
| | Hi everyone. I'm new to the forum and thought it would be a good idea to come to the experts with some of my questions. I am currently trying to write a relatively simple program but being quite new to c++ i'm struggling with some things. I am trying to … |
| | The specific problem is this: "For each course the user creates, there must be a file for that course". The functions to display and insert the students, grades and sex work, I'm just stumped on how to make a function allowing the user to create the course on which the … |
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