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General C++ Programming - February 2016 (Page 20)

I have this binary search tree, and I am trying to write this object into a binary file, extension .dat So when basically the user has a menu, and is given a...

Feb 2, 2016 at 5:59pm

[6 replies] Last: What do you mean? my code works perfectly fine *aside from the read f... (by cire)

by gaurav97

Trying to dynamically allocate array of structure.

#include <iostream> #include<string.h> using namespace std; struct st { string name; long marks; }; int main() { int x; cout<<"E...

Feb 2, 2016 at 5:07pm

[2 replies] Last: Yeah what Tarik said You are inputting as the index every time so y... (by alex067)

by JUAN DENT

Returning std::move() for a local object

Hi, According to what I have read, the return value optimisation occurs only when: 1) the type of the local object matches the return type of the function an...

Feb 2, 2016 at 3:35pm

[9 replies] Last: Beautiful answer Cubbi!!! Thanks ! And thanks to all for your valid ... (by JUAN DENT)

by visharthigee

Trying to fix this merge sort code

Hey all Ive written this merge sort code that uses an array of structures that sorts the data according to the name of the student.Im getting a seg fault here....

Feb 2, 2016 at 3:30pm

[3 replies] Last: $ gdb a.out > run (input) Program received signal SIGSEGV, Segmentati... (by ne555)

by Bdanielz

Discrete Find all functions from Set A - > B

Hi all, I am stuck on this problem and I am at that point where I really could use some help. My task is... Say we have the set A = {1,2} and set B = {a,...

Feb 2, 2016 at 2:15pm

[4 replies] Last: Extreme brute force: #include <iostream> #include <set> #include <uti... (by JLBorges)

by TinyTertle

Array problem: I have never been so lost.

This problem is actually written in Java, but it should still be readable by anyone who has never worked with Java. The problem is as follows: Say that a "clu...

Feb 2, 2016 at 1:49pm

[6 replies] Last: Because any time counted is true, you end up in the else part (line 10... (by dhayden)

by Kubani

Odd errors when creating a Vector

Hi to all, The code below is part of a bigger program and it's not complete yet. And the bodies of these functions are deliberately empty: T* allocate(int n...

Feb 2, 2016 at 1:25pm

[2 replies] Last: Thank you very much dear Thomas. (by Kubani)

by sr123

count and position

Very new to c++ I was trying to solve one common question but not sure how to proceed. Help will be really appreciated. (I am trying to solve without using inbu...

Feb 2, 2016 at 11:25am

[4 replies] Last: Hi sr123. This program will need use of strings. I will try to solve t... (by GrShultz)

by WolfPack64

Error "C4700: uninitialized local variable"

Hello people, this is my first time using this site so cut me some slack if I have trouble. I am in currently Foundations and Computer Programming II learning h...

Feb 2, 2016 at 10:06am

[5 replies] Last: This means that you've selected the wrong kind of project. You're usin... (by Moschops)

by alex067

Writing object into binary file

How do you write a whole object into a binary file? Lets say I have a class X, and this class holds 3 ints and a string, can I write it into the file as an O...

Feb 2, 2016 at 8:52am

[5 replies] Last: No a std::string is not just a character array (see Chervil's first pa... (by Peter87)

by Brittney87

Program keeps crashing

Hello everyone, new c++ programmer here and my program keeps crashing when I run it. There are no errors so I'm completely lost. Anyways I'll give you the instr...

Feb 2, 2016 at 4:37am

[3 replies] Last: There's no need to repeatedly calculate average inside the loop: for ... (by Chervil)

by closed account o9G1T05o

XOR cipher

Write yoXOR cipher is an extremely common data encryption algorithm. A basic Wi-Fi security system uses a XOR cipher and a swap algorithm for encryption, the e...

Feb 2, 2016 at 12:29am

[1 reply] : Stop asking us to do the coding for you. At least show us an attempt y... (by RUNNER PRO AGARIO)

by qwaserdf

Error referencing to a .dll

Good evening to everybody. I am having a problem working with an already made project (.vcxproj file). I am using visual studio, and when I want to debug it,...

Feb 2, 2016 at 12:17am

[3 replies] Last: You're welcome, glad to help! :) (by RUNNER PRO AGARIO)

by noaboa

Lua scripting tutorial

Hi, I know much C++ and I think it is time to take a step further. So I am wondering what whould you recommend doing next? I was thinking to learn Lua as a scri...

Feb 1, 2016 at 11:11pm

[1 reply] : C++ scripting Lua What does this mean? The reference is all you need... (by helios)

by AmmmG 01

Perfecting Knight Movement in Chess

So this is what we have reached in this project, which finds the possible moves for a knight. What I am asking here is that could someone find a more simple wa...

Feb 1, 2016 at 10:39pm

[10 replies] Last: Oh, looky, an ongoing thread in the proper forum to debate stylistic d... (by booradley60)

by gedamial

Algorithm to Split a String into an Array by a character

Hello. I'm trying to split my GString (my own string class) into a GArray (my own vector class) by a character called Splitter. // THE SPLIT FUNCTION static...

Feb 1, 2016 at 10:22pm

[4 replies] Last: You're right. I set 0 now. Since it's a dynamic array, there'll be no ... (by gedamial)

by faheem81090

program for perfect number

Hi, I am trying to get the output of the program as the perfect number along with its divisors. I am able to print out the perfect number but not its divisors ...

Feb 1, 2016 at 9:54pm

[no replies]

by JUAN DENT

Is this a correct move constructor?

Hi, Say I have a struct Widget that supports moving operations: struct Widget { std::string name; Widget( Widget&& w) : name { std::move( w.name) ...

Feb 1, 2016 at 8:30pm

[1 reply] : What you have written is correct. Note that in this simple case there ... (by Peter87)

by cboehm7338

enter any integer and convert it to words.

So I have been writing a code and I am trying to get it to spell out word by word using the numbers I entered. say I enter '-000000000000026450' I would like to...

Feb 1, 2016 at 7:47pm

[7 replies] Last: this is my new code so far i can get it to print -21 say but i cant pr... (by cboehm7338)

by gedamial

Append c-style string to my String class

Hi. I've my GString class that accepts a c style string as parameter: class GString { private: char* mainString; int size; public: ...

Feb 1, 2016 at 6:11pm

[7 replies] Last: Not helpful in anyway, but I like your class name.. (by Pratik K)

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