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General C++ Programming - March 2015 (Page 7)

How to fix pointer to incomplete class type is not allowed error?

I'm getting a lot of this error in the following code node *ptr = new node; ptr->value = x; node *toinsert; if (!head) { head = ptr; head->prenode =...

[2 replies] Last: thanks! (by abc456)

by ArtisticMess

readBytes function

I cant understand why this wont work. I'm thinking it cant find the file"text.txt". I keep getting the error message. #include <iostream> #in...

[1 reply] : First of all, your program has "test.txt" not "text.txt" In case that... (by tipaye)

by jared181

semaphore between 2 cores

Hi guys, I got two different cores (different processors) which both access a certain global variable (gVar) in a shared memory. I'd like to implement (by...

[9 replies] Last: Note that we discuss here 2 cores, not 2 processes on the same core. ... (by MiiNiPaa)

by DragonOsman

C++ IDE with a compiler and C++14 support?

I'm using Code::Blocks, but there doesn't seem to be any C++14 support in it - only up to C++11. So I was wondering if anyone knew of a good IDE that has C++14...

[7 replies] Last: There's no compiler flag in there that you can enable to allow C++14 ... (by MiiNiPaa)

by NavpreetSingh

strcpy program not working

#include<stdio.h> #include<string.h> char xstrcpy(char *,char *); int main () { char source ="You"; char target ="Hello"; xstrcpy(target,source); pr...

[2 replies] Last: Bloody hell of course! Thanks mate (by NavpreetSingh)

by etrusks

What is application domain?

Hi, im reading B. Stroustrup's "Programming principles and practice using C++" and im trying to do all the exercises and also review questions. Now i just cant ...

[4 replies] Last: Thank you very much for your help man, really appreciate it :) (by etrusks)

by NevilEyes

Code for finding prime numbers ( need help , code not working )

Hi all , im new to programming , i have attempted a code to find the number of prime numbers uptil a user entered number and display them. The code isnt functi...

[7 replies] Last: Well, I allready did it once so I'll just share #include <iostream>... (by Gamer2015)

by Satchmo10th

Cleaning up this code... options to make it more streamlined

I just finished up my forth project in my C++ class which focused on reading files, writing to them and correcting the errors in the sentence. The code works, a...

[1 reply] : I'll just give some advice about main function() and return to other l... (by MiiNiPaa)

by Kevin2341

Seg fault on overloaded << operator

I'm getting a segmentation fault on overloaded '<<' operator, however, if I run my program with a command line option (reading a file specified on the command l...

[8 replies] Last: (I dynamically allocated it, it should be good to go now). I still... (by Disch)

by closed account L6vXSL3A

Need help with code

Hello, I would be really happy if someone could help me. I have code which finds words who has second letter 'o'. So, I don't know how every three words join i...

[4 replies] Last: Don't do repeat topics! http://www.cplusplus.com/forum/general/160312/ (by jasonwynn10)

by closed account L6vXSL3A

Code which join words

Hi, I need to write code which input txt file join three words then makes an extra space and again join three words. I written code how to input file. I just d...

[3 replies] Last: Don't do repeat topics!!! http://www.cplusplus.com/forum/general/1602... (by jasonwynn10)

by Gbanawoman

Guessing Game

Somehow I still haven't been able to get this code to do what I want it to do. Seems like I cant get the loops right. It debugs but I'm trying to make it in suc...

[6 replies] Last: yea dude, what you can do is click the edit icon on the bottom corner ... (by jasonwynn10)

by closed account y86MoG1T

Plz Help!

http://www.chegg.com/homework-help/questions-and-answers/write-c-program-simulates-parking-meter-within-parking-deck-program-start-reading-time-car-q6963833 ...

[2 replies] Last: I recommend starting with this: #include iostream using namespace s... (by jasonwynn10)

by pww71

The core of the core of the big data solutions -- Map

Title: The core of the core of the big data solutions -- Map Author: pengwenwei Email: 75293192@qq.com Language: c++ Platform: Windows, l...

[no replies]

by khaldoune

meaning of some functions ?? plzz

It's not a long time that i'm started to learn C++ language and i need some help .. I want to know the meaning of int, void, double, float and char . plzz Some ...

[2 replies] Last: Thnx a loooooot about thoses informations .. your anser was really hel... (by khaldoune)

by zhaolewen

calloc error: Not enough space

The program goes wrong when it runs for a about one day,the perror shows the message"Not enough space",but there are enough space for the program. I have no ide...

[5 replies] Last: Thanks Very much, I will try to use the memory pool to avoid the error... (by zhaolewen)

by Krogoth

How to make it efficient :

I have an object that may have N components of different types. Each type of component has its unique index from 0 to N-1. Component of each type must be able t...

[5 replies] Last: What if I do it like this class Component { //abstract Co... (by Krogoth)

by Aceix

Multi-threading

to use multi threading in one's programme, is it necessary that the target computer's processor should have at least two threads and why? Aceix.

[3 replies] Last: Still, while your hard drive may be busy reading data (operation reque... (by S G H)

by closed account EwCjE3v7

Class segmentation fault

Hello lads, I get a segmentation fault when I put "you" as input. Sorry for the messy code. #include <iostream> #include <string> #include <fstream> #include ...

[no replies]

by Aaron Vienneau

Getting Strange Output Results Depending on std::endl;

Hey All, If I read a .vcf file, line by line, and output that line after each read without a std::endl, the output is a mash of letters and numbers that mean...

[3 replies] Last: Is there anything I could try to fix it or to debug exactly what's go... (by Disch)

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