General C++ Programming - C++ Forum

Hey, found this skeleton on arrays and tried to put some use to it. I'm having an error with the values though... can anyone help? #include <vector> using ...

[6 replies] Last: Do you mean unchecked, as you could also access information that is "... (by cire)

by asda333

Visual Hull

Hi Anyone have any experience of how to build the visual hull using opencv and c++ I have calibrated the camera and don't know what should be the next ste...

[no replies]

by hansaaa

char and general mem allocation.

Hi, I was always wondering about this. As far as I understand, using char *a = new char; allocates one block of memory for a char, and not more. Then, why, i...

[4 replies] Last: Ah, ok, that's what I thought, so, I don't need to delete every pointe... (by hansaaa)

by Zoo

Problem with dynamic memory allocation in istream &operator>>

Hi. I have a question. How do I allocate dynamic memory in istream &operator>>() (operator overloading)? I need to allocate int & char dynamic memory when the ...

[2 replies] Last: Thanks Fransje. I will read through it! (by Zoo)

by jaden5165

Need your help to explain this OOP

_v3signal *_v3main :: find_v3_signal_bylhs ( char *s ) { printf("chunhaun:lhs1,%s,%d\n",s,_num_v3_signals); if(!s){ printf("chunhaun:checklhs\n"); retu...

[2 replies] Last: Furthermore, the _V3Signals must have been declared somewhere. Perha... (by keskiverto)

by vagelis

3D label plot

hello to everyone, I would like a to plot a 3d graph that connects with lines some points in 3d space. I have tried with qwt3d but the problem is that I c...

[3 replies] Last: Well, I have limited experience in 3d plotting using c++, but, if yoz ... (by hansaaa)

by programmeraie125

psuedo code for behaviour tree functions

Just wondering how i could improve these bool checks for my Behaviour tree class, what checks or other functions could i implement to improve these choices this...

[no replies]

by chris222

code concept

Need help pointing out where/if these are applied: The heap Constructor overloading Private/protected data members/functions Functions, parameters, return ...

[4 replies] Last: @cire Ok edited that Aceix. (by Aceix)

by AdrianH

Generating compile time endianness

I've been looking around and am just shocked that there doesn't seem to be any way of using the optimizer or templating system in any consistent way across comp...

[2 replies] Last: Yes. Though for the most part, the compiler should be able to pad as ... (by AdrianH)

by cplusplusnov

functions undeclared

I keep getting errors stating my variables are not declared, although i seemed to have declared them. anyone have suggestions on what to do? #include <iostr...

[1 reply] : I think you're using the wrong tags for code. The reason why it says ... (by Bourgond Aries)

by ElPatoGarrido

[C++] Open / Create a file without deleting the previous

Hi, as specified in the title, I want to open a file if it already exists and create it if it does not exist, but without deleting what was already within. Bec...

[no replies]

by Famouskid7

replace char in string

Is there a way to replace 3 char's in a string. For example i have a string containing s = "The school is called 7x8" I want to replace the "7x8" with "L...

[6 replies] Last: Store all locations of "7x8" in the string, the copy LSU to each of th... (by Bourgond Aries)

by hunterb24

c++ to c# ?

Let me start off by saying I know this is a c++ site, but I was wondering if anyone had experience going from c++ to c#? If so, what learning materials did you ...

[no replies]

by Famouskid7

File IO

I can extract the data and print it out but i want to get a copy of the data and run the Replace Algorithm I have on the bottom of my code. Is there a way to ge...

[no replies]

by Gerrit1

Cin (input) is being ignored in do while loop.

Hello. The cin (input) is being ignored after the post-test. Any solution? Thank you. #include <iostream> #include <string> #include <cmath> ...

[no replies]

by FalterrisAunvre

Best method for text trees in games? (XML vs etc.)

I guess that this will all boil down to a matter of opinion, but I'm all ears for assistance. I'm making a game with multiple endings. For debugging purposes...

[no replies]

by jaden5165

Polymorphism C++

CPolygon * ppoly1 = new CRectangle; DOes it mean poly1 can either point to type of Cpolygon or Crectangle?

[1 reply] : Yes (Assuming CRectangle is derived from CPolygon), this is because CR... (by Lachlan Easton)

by computerkazi

C Help - Reading from file.

Hi guys, So I have this text file that I am trying to read from and store the values of each line in multiple variables. Let's say my text file contains ...

[2 replies] Last: Thanks Cubbi, appreciate it :) (by computerkazi)

by CLearner88

tea algorithm

hi guys, i`m trying to figure out how to use these two methods of tea algorithm that i have gotten from wikipedia. #include <stdint.h> void encrypt (uin...

[2 replies] Last: thanks man! so i will do the same for string? correct me if i`m wrong... (by CLearner88)

by ssteuteville

C string manipulation (C not CPP)

Hello, I'm usually a c++ programmer but my teacher is forcing me to use regular old c. I've been spending a lot of time figuring out how to manipulate strings...

[2 replies] Last: Beautiful. So glad I asked! =D (by ssteuteville)

C++

Forum

General C++ Programming - May 2013 (Page 35)