Beginners - C++ Forum - June 2011 (Page 12)

I'm currently attempting to simulate some type of robot or buggy within the physics simulator Open Dynamics Engine (ode.org) and then apply some Reinforcement L...

[1 reply] : I don't have any previous experience with ODE, but I'd be happy to hav... (by esotera)

by Nisheeth

Creating an Array of indefinite size

I want to create a program that will keep the records of a number of people. I have created a struct Person_t . Now I want to create an Array that will hold th...

[9 replies] Last: That explains it! Thanks a lot for the help... (by Nisheeth)

by caneta

Emulate awk

I have a string like the following: string myStr = "Monthly Ecosystem NPP = 0.360591 tDM/ha month"; How can I isolate 0.360591, as I would do in bash wi...

[2 replies] Last: Thank you so much...Meanwhile I've solved with the following: string... (by caneta)

by mr kazoodle

subclassing the string class

hi, As I am writing a program to handle some csv files, I wrote some functions that handle strings which I would like to add to the string class. So I am at ...

[2 replies] Last: hm, I feel pretty stupid right now ;) Thanks a lot! (I will follow y... (by mr kazoodle)

by badny

Get string length

Hi there! I´m trying to get the length of a string, but I get error when I do: strlen(Ficha.Market); Market is a string, inside Ficha struct: st...

[3 replies] Last: http://www.cplusplus.com/reference/string/string/substr/ (by Moschops)

by kishor8dm

"new" operator

Here are two simple functions. void function1(){ double *a = new double ; a = 10.0; for(int i=1;i<36;++i) a =4.0*a[i-1]; ...

[6 replies] Last: Why would one want to write your own version of new? Here are three pr... (by Moschops)

by sid91ues

Multiple Inputs from DAT file

Hello Everyone....i am having a small problem in c++.I have to take input from a DAT file which contains say 50 values of x, 50 values of y, 50 values of z etc....

[1 reply] : I assume that each x, y and z is in 1 row like this: 1 2 3 4 5 6 ....... (by eraggo)

by Cube Code

Programming a GUI

I have been studying programming for almost three years as a hobby and just finished reading through a book that had many examples of console applications.Now t...

[13 replies] Last: I was just absolutely sure that you can write only in C++/CLI (by vonpik)

by BlackSheep

Encryption Methods

#include <iostream> #include <string> #include<fstream> struct data{ std::string extension; short int* mydata; int size; }; using namespace std;...

[6 replies] Last: Actually there are Open Source C++ library around which you can use in... (by sohguanh)

by snakec

file handling question

Hi I'm new to c++. I'm working on a code which got a code line following: code : class TextUpwardProtocol: public UpwardProtocol { private: FILE*...

[2 replies] Last: For FILE* _stream or other pointer variables, it is always wise to che... (by sohguanh)

by ankushnandan

Pointer to const location, '&' and copy CTor

Hi, is int foo(int&) same as int foo(int *const)? if yes than in case of Copy Ctor why cant we have X(X* const) instead of X(X&)? ...

[1 reply] : I don't think it is the same. pointer can point to NULL at run-time wh... (by sohguanh)

by tonnot

Cant write a stream buffer to binary file ...

I create this buffer for my stringstream. char mybuffer ; the_stream.rdbuf()->pubsetbuf(mybuffer,265536); Aslo I have a fstream FILE object. Ok...

[no replies]

by Hexa

what exactly *this pointer is doing?

hi again all of my bros and dear experts here i know whats this doing totally i know its memory address of our object and point on it but in point to something ...

[4 replies] Last: thanx mate and what about post increment. idea is "this" get our obj a... (by Hexa)

by Gene

Help With Random Numbers

Hello, I have this piece of code here void Generate_Square_Room_Randomly(int rows, int columns, char world ) { srand ( time(NULL) ); int room_hieght...

[5 replies] Last: Ok, redid the code a bit and fixed some problems confusing X and Y, ho... (by Gene)

by ty98

rc data

How do I use the rc data? If its for like files in the program itself then how would I use it to extract a program?

[2 replies] Last: look at this http://msdn.microsoft.com/en-us/library/aa381039%28v=vs.8... (by coder777)

by jorjoo

too many characters in constant?

Hi, so i was practicing c++ variables and switch statements today and I was almost positive I did this correctly. However, when i try to write in a 'case' for m...

[9 replies] Last: thanks, this could definitely come in handy in the future. (by jorjoo)

by sebgar

Static Member variable

How do you initialize a static variable when it's a struct?? i can't make it work... struct sommething { int a; int b; }; class Myclass ...

[6 replies] Last: If you wanted to initialize a and b separately you'd have to do it lik... (by shacktar)

by ealforque

Nested If statements..

if... if... if... if... } } } } is it a good programming practice? because it looks like that this practice ...

[3 replies] Last: if(condition1 && condition2) Use that for having multiple conditions... (by Intrexa)

by bballamis

Indexing arrays

Would you mind offering me a little feedback? I thought that I had figured out a clean-cut way of initializing the data for the two multi-dimensional arrays wh...

[1 reply] : No you can not use strings as indexes in arrays. All of the const... (by binarybob350)

by pilot538

Encrpytion (1,2)

I am wondering how to do some simple encrpytion for some files i have on my computer. My teacher put a file on our computers, and told us to make a program to e...

[21 replies] Last: Well now I ask another question. Can data in a class be search in the ... (by pilot538)

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Beginners - June 2011 (Page 12)