General C++ Programming - C++ Forum

by alex460

merging a vector of vectors of int and a vector of int

Hello I am a beginner in C++ and I am having trouble merging and sorting 'the vector of vectors o...

[4 replies] Last: Oh... Thank you. It works now I did std::vector<std::vector<int> > ... (by alex460)

by maxstoto

Please help me in Binary XOR operation using C++?

Please help me in Binary XOR operation.... This program will ask user to enter their input..After ...

[1 reply] : Why? Just use ^ .... (by ultifinitus)

by nrshoukhin

Facing some problem

#include<iostream> #include<cstring> using namespace std; int eval(char X ,int l,int r); int main()...

[9 replies] Last: If arr is an array of chars, its name converts to a pointer to char, b... (by filipe)

by chrisname

Function pointers

I am trying to use a function pointer to allow a function to hook events in a class. The callback...

[2 replies] Last: Yes, you're right, that fixed it. Thanks filipe! (by chrisname)

by Sentoumaru

Pointers to classes to structure ?

Hi Guys! My task is to check if a circle belongs to a rectuangle using pointers, struct point and c...

[1 reply] : I think i finished the program but i got send/don`t send error. what?... (by coder777)

by Asif Hirai

What is wrong with my casting in this program?

I am having trouble casting an integer to string in this program. #include "stdafx.h" #includ...

[3 replies] Last: You do realize that you can't just add to string literals, right? You... (by Asif Hirai)

by Deathgeese

Very Frustrating Errors

I'm using Code::Blocks to make a command line program. Whenever I try to compile I get a "using-dec...

[3 replies] Last: You should include the headers that you use. string may be included... (by moorecm)

by toks

wrong elapsed time

Hi friends, i am using the code below: #include <pthread.h> #include <stdio.h> #include <st...

[3 replies] Last: Thanks kbw i will change this. Nice question jsmith, i just checked i... (by toks)

by oz1cz

Superiority of unnamed namespaces over static

Unnamed namespaces are supposed to be a superior alternative to the static keyword. I do not unde...

[5 replies] Last: Thank you for that, Bazzy. That was helpful! According to http://stac... (by oz1cz)

by ahlanbika

code error

hi, I'm fairly new to c++. I found this generic question is a book asking to spot the error in the c...

[2 replies] Last: if A::f() is not a const method, your function will have no effect on ... (by bartoli)

by TheDestroyer

Alternative to fwrite in C++ other than fstream and ostream (1,2)

Hello guys, writing binary files with fstream is really annoying. I noticed that it formats the n...

[21 replies] Last: After you learn endiannes (little endian, big endian), I'd advise you ... (by TheDestroyer)

by aiby

fstream::clear

Hello guys, I got the eofbit and failbit when we readed the file end. My question is if How can I ...

[10 replies] Last: Okey,anywhere,Thanks! (by aiby)

by rashter

i am not getting desired output

this is part of my program, can anyone tell me what went wrong in it because of which i am getting u...

[3 replies] Last: Sorry I give you wrong answer.Can you put on more Code? (by aiby)

by saxophonemaster

Pointers in C

I have a pointer that points to an array of MenuItem object pointers that points to MenuItem Objects...

[2 replies] Last: Assuming the menuitem array is being created dynamically using new ... (by guestgulkan)

by sara90

sorting problem

hello every one i make a project about linked list and do some functions on the linked list i want...

[4 replies] Last: thank you so much. you helped me a lot :) (by sara90)

by pvdpepo1

C++ USB control

Hello friends i want to ask you if you can give me advice what i should learn in C++ to control USB ...

[5 replies] Last: mob has cleared all the things in one post. I completely agree with hi... (by Esspweb)

by roelf01

How to cross-compile on cygwin?

Hello, I'm using a full installation of cygwin and need to cross compile for i368 unknown gnu lin...

[no replies]

by roelf01

How to compile an program using ncurses static

Hello, I'm developing my own os from the bottom up (it's based on linux). I'm using cygwin and wind...

[8 replies] Last: Since the topic is solved by the link to the article at belsky.info An... (by roelf01)

by pieee

If statement problem

Hey guys, newly registered but regular lurker, I am having a problem with a script I'm writting for ...

[6 replies] Last: Thanks guys, you's have helped out loads, got everything to work but n... (by pieee)

by closed account 3hM2Nwbp

Unresolved Externals - It looks fine to me.

I think I'm just oblivious to something that should be screaming out to me...but can anyone spot whe...

[no replies]

General C++ Programming - March 2011 (Page 9)

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