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Beginners - July 2020 (Page 6)

Need Help with some memory leak issues

Hi all, I am having trouble getting rid of some memory errors, I'll provide all my files incase the problem stretches across multiple errors. So I have a mod...

[7 replies] Last: > I'll provide all my files incase the problem stretches across multip... (by ne555)

by John3682

spot the problem

guys whats the problem with this code : int silly(int n) { if (n<=0) { return 1; } else if (n%2==0) { return n; } else { silly(n - 3); } } ...

[10 replies] Last: thank u so much guys : ) sorry i cdnt answer sooner since i didn't h... (by John3682)

by rfresh737

enum question

I'm learning C++ and the enum Creation code below I don't grasp how that is being used in the code? I see Call_iIchimoku is used a few lines down in the inpu...

[5 replies] Last: I understand re using links for file attachments. Now I know. So I th... (by rfresh737)

by sarah1993

Swapping value

Hi everyone. I'm new to C++. I'm seeking for some advise here. I had some problem here. Given matrix (5x15) known as route as below. For each row, I need to sel...

[2 replies] Last: This is an older post, so I hope you figured it out. Not sure if I u... (by memoria)

by memoria

Rule of 3 and destructors

Hello, I'm working on a homework project that involves creating a predator/prey "simulation." It's very basic stuff, but it's meant to test our knowledge of mul...

[19 replies] Last: Just a quick bump to say I got a 100 on this assignment :D Thanks agai... (by memoria)

by Shruthi LS

Unittesting in cpp Visual studio

Hi Everyone, What are the frameworks available for unit testing in c++ visual studio. Please share the related documents or links available for the same. ...

[4 replies] Last: I find that the easiest to use are catch2 and doctest - just 1 header ... (by Thomas1965)

by ChesterPlus

Primary-Expression Compilation Error

I tried compiling this code, and the error that says that the Array parameter in the function requires something called a primary-expression. What is it and ...

[2 replies] Last: Lets see: In function 'int main()': 69:62: error: expected primary-e... (by keskiverto)

by JamesHelp

converting a repeating decimal to a fraction

so i was given a book exercise where we are give 3 decimal expansion values: 2.5R0 0.08R3 0.R142857 so the "R" is for repeated portion of ...

[5 replies] Last: Split your string (using stringstream and the 3-argument form of getli... (by lastchance)

by jbhomer

Code review request for efficiency

Brand new coder here. This code works, but I would love some feedback on inefficiencies and/or bad habit avoidance. Thanks for taking the time! #include <...

[3 replies] Last: Lets make a table (for 7 rows): row P M 0 3 - 1 2 1 2 1 3 3 0... (by keskiverto)

by ConCoder58

"x" does not name a type

I'm following a tutorial to build a particle explosion project. I'm working in steps and creating a new project for each step. In order to get practice typing o...

[13 replies] Last: read this http://www.cplusplus.com/forum/articles/10627/ your problem ... (by ne555)

by pnwadike99

44 instead of 4

why does my program output 44 instead of 4 it is supposed to count how many @ signs are in the file and output that number. the file in question looks like th...

[3 replies] Last: I would suggest taking it easy on the comments. It makes reading the c... (by helios)

by Alex4321

I need assistance with my assignment

I have an assignment and could use some help with it. I have part of it working, but not all of it. Here is my assignment. Example 10-10 defined a class perso...

[1 reply] : Your personType class contains no function called "isFirstName". There... (by Ganado)

by momof4

Why won't my constructor work?

I keep getting this error: no matching function for call to 'Board::Board()' :topLeft(tl), bottomRight(br) I'm not even sure what that's talking about. It ...

[1 reply] : When you have a class with no constructor defined, the compiler gives ... (by Ganado)

by pnwadike99

no outputs

had it working before I tried adding the sort and duplicate functions. now it just outputs a blank file and doesn't output anything to the console. any observat...

[5 replies] Last: thank you so much andy my your advice was very helpful and helped me u... (by pnwadike99)

by ErnstPeter

Vectors in classes

How do i use vector in classes, cause when i do the following it dont work: CStart::CStart(int pSpieler){ vector <string> mPlayers(pSpieler); // like...

[16 replies] Last: Like in the above: class CStart { // ... vector<string> mPlayers;... (by keskiverto)

by momof4

how to delete an item from a list

I passed in a single block, and now I need to see if any of the other blocks have an identical number, and if it does, delete that block. bool numberIsSame(B...

[5 replies] Last: It won't work correctly without it. I originally said that 'it' will "... (by dutch)

by sparki

Constraints in memory footprints of bitarr

Hi, Sorry if I am making a few posts. But I'd really need help here as deadline is near. Anyway, I am having trouble with the additional constraints on memory f...

[10 replies] Last: that makes sense -- the design of both of those was for dealing with g... (by jonnin)

by GonlyG

need help for printing BFS node source

I'm testing around with BFS and I understand the basic algorithm to display the nodes in visited order, but am struggling to get the nodes used to visit that pa...

[8 replies] Last: Please post your current code and the input. (by dhayden)

by sparki

Run-Time Check Failure #2

Hi, Thanks everyone for the help so far and my apologies for the numerous post. This should be my last post if I'm able to get this problem resolved. I have imp...

[2 replies] Last: You are not implementing it properly at all. You've calculated how man... (by dutch)

by mrpear2020

Regex to capture both digit values in string

Imagine I will be reading an XML file. Like the lines used in the example below. I need to capture the value of x and y for each line. If possible, avoiding an ...

[2 replies] Last: Is this for an exercise? If not, why not use an XML parser? Andy (by andywestken)

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