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Beginners - January 2021 (Page 8)

Is it true that structures are stored in stack starting from the highest hexadecimal address and in descending order? If yes, is there a good reason?

[2 replies] Last: Thanks dutch. Neat response! It makes sense that the "heap" grows upwa... (by skcpp)

by kmce

shared pointers

I have a question about shared pointers, I found code on a site that is talking about shared pointers and circular reference. In the code below when albert is a...

[9 replies] Last: That's a good question. Remember that it's a question of ownership, wh... (by dutch)

by WeebTriestoCode

Binary Searching

Hello there! I just have a question. How can I solve this problem. It keeps getting error and I don't know how to answer the given error. #include<iostrea...

[2 replies] Last: Hello NoobCoder2333, In regards to the question that you deleted. You... (by Handy Andy)

by siid14

Segmentation Fault: 11

I get a segmentation fault, I do not understand why. Checked my code seems fine... Trying to get the reverse order of a list of numbers that I put in an array. ...

[3 replies] Last: it means nothing on stack to trace, but why would that happen? It is ... (by coder777)

by skcpp

Changing the starting address of an array (1,2)

Is there a use case at all for needing to change the starting address of an array at run time? The last assignment below fails because the code is trying to ass...

[20 replies] Last: It's fun trying to work it out though. cpp.sh seems to be allocating ... (by lastchance)

by Shadow686

Review of Code C++

I feel that much of the code is to par for a homework assignment. Yes, I'm being upfront about this being for school. I'm not asking for help, only a review of ...

[7 replies] Last: > why is "using namespace std" considered bad practice? It is conside... (by JLBorges)

by Shervan360

Get string and save in array of pointers in C++

Hello, I would like to get 10 string from the input and save in array of pointers. Like this: https://i.ibb.co/hMySjRZ/Untitled.jpg

[7 replies] Last: If there must be an array of pointers, we can do this: #include <ios... (by JLBorges)

by skcpp

Memory Mgmt in C++ (Basic Question)

Similar to malloc and calloc in good old C, does the developer need to manually manage memory allocation and destruction in C++, and if yes, does that exercise ...

[7 replies] Last: the c++ containers can be used in place of new and delete if you want ... (by jonnin)

by gevCplus

Implementing queue using an array

Hello guys. I am trying to implement a queue by using an array. However my code has some flaws so please any piece of advice would be really helpfull. ...

[6 replies] Last: Thank you all very much for your precious posts! (by gevCplus)

by skcpp

Data type on stack

When a object or a pointer is declared with a data type, is the data type also stored on stack, and if so, in an adjacent location or somewhere else?

[10 replies] Last: Duh! Thanks it works now :-) (by skcpp)

by DreamingInsanity

Passing function pointer down through multiple functions

This may have been a little bit of a complicated project to start with especially since I knew nothing about C++ but I'm enjoying it (for the most part). I'v...

[7 replies] Last: You have Callback CallBack and _callback . No wonder you can't ke... (by dhayden)

by frog1990

Rhombus star pattern

What i can change in this code so it would print 8 rows without asking? #include <stdio.h> int main() { int i, j, rows; printf("Enter the...

[6 replies] Last: As C without multiple for loops, consider: #define _CRT_SECURE_NO_W... (by seeplus)

by Awesomeness

Storing words into an array from a file in reverse order, and write into a new File.

So, I'm currently trying to figure out how to open a file that has a ton of different words of different sizes. Then search for all the words in the file of a c...

[17 replies] Last: @OP Despite your green tick an interesting problem arises if all the... (by againtry)

by dutch

Class function updating 2 variable

You need to post something that demonstrates the problem instead of some random crap.

[2 replies] Last: The compiler is your friend: it tells what is wrong or likely to be wr... (by TheIdeasMan)

by tdilley28

Database integration help?

Can someone offer some time on how to develop an application A-Z and how this works? Currently in school, almost done with my 2 year and really haven't learned ...

[no replies]

by rozick1

is it safe to use memcpy to serialise/deserialise PODs?

Hi I need to serialise and deserialise some POD structs. I was planning to use something like the following: #include <iostream> #include <cstring> using n...

[3 replies] Last: > Binary is far superior to text in performance and space. > if you do... (by JLBorges)

by mac10warrior

appropriate way to deal with compiler warning non-void function doesn't return value in all paths

Sorry if this has been asked, I didn't find it. Working through Bjarne's PPP and using g++ on my mac. Total beginner. 99% sure I get the warning because my de...

[16 replies] Last: Thanks, Andy. No, it's part of this calculator code project. I wasn't ... (by mac10warrior)

by Shervan360

Print Minimum and Maximum n-digit numbers whose sum of digits equals to given sum

Hello, I would like to print the minimum and maximum n-digit numbers whose sum of digits equals to given sum. 1<=m<=100 0<=s<=900 for example: 2 15 ...

[10 replies] Last: My try; #include <string> #include<iostream> #include<vector> using... (by oggin)

by y19177

A question

Can someone have a look at my code? I'm trying to approximate pi by using the formula pi = lim 4*(1-1/3+1/5-...+(-1)^n/2n+1). When I compile my code, it always ...

[8 replies] Last: You can always add up the terms in pairs - then you will never have to... (by lastchance)

by Dennisinator

XP value is constant

With this the value of xp does not change and I can't tell why. #include <iostream> #include <conio.h> #include <cstdlib> #include <time.h> #include...

[4 replies] Last: Solution found. Thanks for pointing out that line, @jonnin (by Dennisinator)

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