49,761 Topics
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| | [CODE=C] #include <math.h> void greedyMatch() { Xnode *u; Ynode *v; arc *e; forallXNodes(u,G) { assert(!u->isMatched()); forallOutArcs(e,u) { #ifdef STATS stats.searchArcCnt++; #endif v = e->head(); if (!v->isMatched()) { #ifdef STATS stats.mVal++; stats.greedCnt++; stats.flowArcCnt++; #endif v->match(u); u->match(v); break; } } } } void augment(Ynode *last) { Ynode *v, *v1; Xnode *w; arc …  |
| | I am interested in using DirectX to make games. I'm using MinGW, which is a windows command line port of GCC. How would I get it so that DirectX 10 is included in the files? It probably is in the headers, but I don't know which to include because most … |
| | I am new to C++ in terms of large projects distributed over various source files. When I compile(gcc compiler) I get the following error: undefined reference to 'C::C()' I have this code: [B]/src/lib/abstract/[/B]A.cpp [CODE] #include "src/plugins/geo/C.h" #include "B.h" class A:public B { public; A() { B m_b; } void speed() … |
| | ...well i would like to practice c++ by analyzing the logic of the sample programs.... ..thank you for your help.. i really appreciate it... |
| | Hey there, I am attempting to open Firefox using C++ on Linux (Ubuntu). However, I get an segmentation fault. What am I doing wrong, and what should I do? [CODE]std::cout << system("/usr/bin/firefox") << std::endl;[/CODE] /usr/bin/firefox works in commandline and when I run this program in debug mode in Netbeans, firefox …  |
 | I'm writing a small game engine and I have a little problem. The code below shows the exact situation: Header1.h [CODE] #ifndef _HEADER1 #define _HEADER1 #include "Header2.h" namespace HNamespace { class HClass1 { public: HClass1() { } ~HClass1() { } HClass2 * A; }; } #endif [/CODE] Header2.h [CODE] #ifndef … |
| | I am wondering if somebody could recommend a good book and/or tutorial for an absolute beginner with no previous programming experience. Thanks. Also If I can do decent at programming, I may end up going to college in order to try and make programming a possible career  |
| | Hello! I'm new to c++ but I have a problem and desparate for help. I'm trying to store string and integers into a file, but only strings get stored and integers dont. I tried casting,didnt work. Not to convolute you with my code, I came up with this small program … |
| | Hi guys, Shortly my research group will be getting a big fancy set of CAEN VME nuclear instrumentation modules. It will be my job to write some C/C++ programs to control all of these modules. That's about as far as I understand. I'm a C++ baby (I know some Java, … |
 | Hey all I have seen a lot of stuff about palindrome checkers so I thought I would write one that works for STL containers as well as arrays. it accepts a bidirectional iterator to the first element and an bidirectional iterator to 1 after the last element. Included is a … |
| | Hi guys, I would like to execute something like this in my program: system("C:\test\perl\a.pl"); But the problem is i need to execute: perl a.pl Can't just execute the a.pl and expect it to run. Any ideas on how i could simply open up the cmd prompt with my program and … |
| | I have a vector class that is defined using a template. VS 2010 is underlining every instance of these templates, claiming that the identifier Scalar is undefined. Peculiarly, these errors only occur in the definition of the class I will list first but not the one that inherits it. Here … |
| | I would like my C program to run my perl script: I have something like this in mind: system("C:\test\perl\a.pl"); But obviously it needs to do perl a.pl. Not just execute the a.pl. Any ideas? Something simple would be appreciated. |
| | I am having a Visual C++ Debug Assertion Failure. It is happening after the internet opens and then try to go to website thats not the homepage. here is the info in the message: Program: C:/Program Files/Internet Explorer/IExplore.EXE Files:dbgheap.c Line:1132 Expression:_CrtIsValidHeapPointer(pUserData) |
| | I'm new to c++ however, I have been doing C for about a year now so OPP and all its related things are new to me ( classes etc. ), i have the program in C so I'm trying to find a better way to implement it... Thanks in advance … |
| | I'm trying to use .open() but I'm having an issue with my arguments to this function. Here's my code: [CODE] vector<string> FDT_filename; ifstream is; is.open (FDT_filename[0], ios::binary );[/CODE] Which results in the following error: [CODE] ../sim_main.cpp:297: error: no matching function for call to ‘std::basic_ofstream<char, std::char_traits<char> >::open(std::basic_string<char, std::char_traits<char>, std::allocator<char> >&, const … |
 | How would you take an int and make each diget into a array element? For example: [CODE]int num = 12345; int nums[4]; // how ever you enter numbers into the array // would result in: // nums[0] = 1 // nums[1] = 2 // and so on...[/CODE] |
 | In a nutshell I am trying to write a program that will connect to a database, query several tables for various sets of data that will then be transformed into XML that is stored into a file on the local hard disk. My first thought process to solve this problem … |
| | I am trying to use the CalcOpticalFlowBM function but I don't understand hot it works. I want to find a motion vector for every blocks but I don't understand that the CalcOpticalFlowBM yields velX and velY. I wrote below code . [CODE]/* Create an object that decodes the input video … |
| | I have a Report Model List Controller and I want to get Selected Row Of data to be used.. my Row has there are four data colums.. Name.Age,Birth and Salary... please help me to solve this... thanks...  |
| | i need help converting this C++ to pseudocode help me pleasee [CODE]#include <iostream> using namespace std; { string Z[]={"zero","one","two","three","four","five","six","seven","eight","nine","ten","eleven","twelve","thirteen","fourteen","fifteen","sixteen","seventeen","eighteen","nineteen"; string A[]={"zero","ten","twenty","thirty","forty","fifty","sixty","seventy","eighty","ninety"; int N,N1,N2,N3, r; string text; N1=N/100; r=(N-(N1*100)); if (r<20){ cout<< Z[N1]+"hundred and"+A[r]; } else{ N2=(N-N1*100)/10; N2=r/10; N3(r-(N2*10)); cout<<[N1]+"hundred and"+A[N2]+[N3]; } cin>>N; return 0; }[/CODE] |
| | pls guide me which language will be easy for this java php or c++ |
| | I think this is an easy question but I don't know the answer to it. How does one link the value of an argument to a function and the functions parameters? For instance: [CODE]int a; int b; void fn(int &c, int &d) { c++; d++; } int main() { fn(a,b); … |
 | Hello, This is probably trivial, but I can't find a solution to the following problem. In C++Builder 2007 I was able to write different strings both to the Application's Title and to the Main Form's Caption. In the Title I displayed the name of the Application; in the Caption (showing … |
| | Say i have a 256 byte file. How many additions or multiplications can a modern computer perform on them using c++ ? I've been working on this c++ compression project that does a lot of calculations. I use Dev-cpp,and am a amateur programmer,i've not used pointers,vectors or anything fancy yet,anyway … |
| | Please check the below code template<class T> class Row { public: Row(int cols=0):row(NULL) {SetRowSize(cols);} ~Row() {SetRowSize(0); } Row(const Row &r):row(NULL) { SetRowSize(r.numCols); for (int i=0;i<numCols;i++) row[i]=r.row[i]; } void SetRowSize(int n) { if(row) delete[] row; if (n>0) { row=new T[n]; memset(row,0,sizeof(T)*n/sizeof(char)); } else row=NULL; numCols=n; } int size() { return numCols;} … |
| | How can I manage to lock or unlock access db query table. e.g. I have a game which displays few questions and then answers which are taken fromt the access db records. What I want is during the game play, it should remain lock till it is accesed, so that … |
| | Hi guys How do I search a file ".txt" which contains three lists side by side for a word , then print the line that the word I searched for is in? NOTE: -The lists are lists of names . it would be beter if you show how to do … |
| | Guys I am seeking help on the following two dimensional arrays, using matrices. (a) Enter elements of two matrices A and B. (b) Add the matrices and store the result in matrix C. (c) Subtract matrix A from matrix B, and store the result in matrix R. |
| | I'm in a computer programming class and having trouble. The assignment is: [I]Write a program that uses a structure named MovieData to store the following information about a movie: Title Director Year Released Running Time (in minutes) The program should create two MovieData variables, store values in their members, and … |
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