Beginners - C++ Forum

Write your question here. I'm trying to sort these nodes in order, but the code below seems to be resulting in an infinite loop and I can't seem to find the is...

[10 replies] Last: The implicit conversion to pointer ( null pointer conversion ) applies... (by JLBorges)

by AkiraC

How to print out something according to the input?

Hi, I actually wanted to print out something according to the character that I typed but it doesn't show it out. Example, When I entered 'A' and its quanti...

[8 replies] Last: Ok. perhaps: #include <stdio.h> #include <stdlib.h> #include <ctype... (by seeplus)

by cl0ckw0rk

Address of struct and address of first member variable

The address of a struct is the same as the address of its first member variable. struct myStruct{ int number; char ch; }; int main() { ...

[4 replies] Last: > Given that both the struct and the first member have the same addres... (by JLBorges)

by lindsayy

.

here is the code on how to mergesort a 2 equal sorted runs #include <bits/stdc++.h> using namespace std; void SortTwoHalfSorted(int A , int n) { ...

[7 replies] Last: Why did you erase the title text of the thread? Don't. (by keskiverto)

by Reddevil1003

HELP keep getting error C2182 and few others

i have tried everything, cant figure out whats wrong .. here is the code with errors as comments: // file name drawing.h #include"mac.h" void DrawFi...

[4 replies] Last: thanks helios , it worked all i had to do was remove drawing.h and mac... (by Reddevil1003)

by iamdevastated

Accessing struct member within node of linked list concept

I have created a linked list with a struct Student within a single node of said linked list. Within the Student struct, there are several struct members, namely...

[7 replies] Last: Ok. You already got that: using type = Student; struct Node { type ... (by keskiverto)

by lindsayy

How to calculate the time complexity and space complexity

Hi, may i know how to calculate the time complexity and space complexity of this code #include<iostream> using namespace std; struct Run{ int firs...

[3 replies] Last: yes, N*N and N^2 are the same thing :) remember this stuff can get w... (by jonnin)

by Handy Andy

what do have to do?

Hellofire1234, Since there is not enough code to compile and test I would have to guess that "main" calls "whatsx", which is only a copy of the variable,, but ...

[1 reply] : fire1234 Op Original post. int whatsx(int x) { std::cin >> x;... (by Handy Andy)

by AkiraC

How to sum up the numbers in loop?

Hi, I'm new here, may I know how to sum up numbers in loop? Example, for quantity of product A, I inserted 1, then loop, the second time, I also inserted 1, so...

[8 replies] Last: @Handy @seeplus I had change the code according to your codes, and it... (by AkiraC)

by reversel

Trying to implement HWID Checker

I want to check if hwid serial code (HWID) is valid from std::vector<std::string> list but I can't get it to work. Here is what I have tried. however, it does ...

[1 reply] : The string returned by GetCurrentHwProfile encloses the GUID in curly... (by mbozzi)

by chuuuing

Static member that contains unique_ptr

Hello everyone, I wrote the following code to regenerate the problem I met: I'm trying to have a static member ("accommodation") that contains unique_ptr. Wh...

[4 replies] Last: It's not entirely clear on what you're trying to do. However, I'll ju... (by kbw)

by rohithanaydy

Please Describe the Below function

Anyone please describe the following C++ code,i.e What is it doing class LightingManager { private: friend LightingManager & LightMgr(void); st...

[4 replies] Last: That's naming the object explicitly. In your code, you need it becaus... (by kbw)

by Zhylian

Makefile

Hi guys, I'm introducing myself to classes in c++. Here in this example, I 've created a class "particle" ( which contains as protected data members the mass an...

[2 replies] Last: thanks mate, I will check it! (by Zhylian)

by greyster

codeblocks

Hello everyone i am running Ubuntu 20.04 LTS and really would like to learn C++. So i downloaded build-essential and it was great. I could build a simple '...

[1 reply] : Seems like you were 'informed' by someone who didn't know what they we... (by salem c)

by ChloroPhyte

Code about converting seconds into a stopwatch.

AFAIK this code is finished, but is there anything i can do to make this code run any faster? #include <iostream> using namespace std; int main() { ...

[6 replies] Last: Here's something that you can do to speed things up (and make speed-te... (by newbieg)

by JamieAl

Error: cannot convert ‘std::vector<double*>’ to ‘double*’

I am trying to convert a malloc to std::vector This was the original initialization in my code double *ne; ne = (double*) fftw_malloc(nx*ny*sizeof(dou...

[14 replies] Last: @JamieAL, Can you provide some sample input and output? The ability ... (by mbozzi)

by dodge55

Trying to get a simple menu to appear

I have been an embedded designer for years and was trying my hand at c++ for windows, just for curiosity purposes and not really for development. I am reading ...

[6 replies] Last: You should already be familiar with the original Windows data types. h... (by deleted account xyzzy)

by yasab

WHAT IS WRONG WITH MY CODING?

Why do I got RM 0 for the total charges? /// This program that calculates the total cost of a hotel stay. ///The daily base charge is as follow: /// De...

[9 replies] Last: If you use functions for input, this greatly simplifies the program. C... (by seeplus)

by jcsb1994

Using member function pointers inside a class

Hi, I am trying to implement member function pointers in a class. I tried to work it out in a project and got plenty of errors. Now, I have written this small c...

[6 replies] Last: > I believe because function names by themselves are pointers to the f... (by JLBorges)

by seeplus

Looking for teacher.

A good on-line learning resource is: https://www.learncpp.com/

[no replies]

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Beginners - July 2021