General C++ Programming - C++ Forum - November 2020 (Page 7)

by onetwo123

Deleting in the file.

In the code, I have described the File (), Modify () and Add_Sum_Avarage () functions. File () must ...

[3 replies] Last: @seeplus std::ofstream out("input.txt", std::ofstream::app); sorry,... (by onetwo123)

by mostakim hamza

how convert image to emoji in c++ ??

hello everyone : actually I have some complicated problem but it's very very easy for professional ...

[1 reply] : I found ( all codes + all new faces ) need in here : https://github.... (by mostakim hamza)

by oceanSpray

Trouble with Insert and delete functions

Hey ya'll I'm having some troble with my linked list delete and insert functions. My delete function...

[1 reply] : O(n) insertion & deletion operations defeat the purpose of using a sin... (by mbozzi)

by sarahng

Project Help how many days are we into the year for a given date

The project ask to create a function to find how many days are into the year int daysIntoYear ( int...

[1 reply] : Please use code tags for your code to be easier to read. http://www.cp... (by Hezigon)

by Louis91

HardwareTimer for STM32 (blue pill) board

I'm trying to implement class function from "hardwareTimer.h" lib. There are two versions of the fun...

[5 replies] Last: For platform I am using (Arduino IDE) std::make_shared<>() doesn't wor... (by Louis91)

by Mitsuru

Custom allocator for unordered_map<int, vector<Type, allocator> >

Dear all, Now, I am using TBB, and memory_pool_allocator for scalable memory allocation. I use...

[2 replies] Last: Dear mbozzi Thank you for your detailed reply. BTW, if I use not st... (by Mitsuru)

by Mitsuru

Fast destroy (=clear) std::unordered_map (or concurrent_unordered_map)

Dear all, I encountered a high overhead of destruction (= clear) for std::unordered_map (& concur...

[5 replies] Last: I found library for polymorphic memory resources is in boost, I will t... (by Mitsuru)

by nuderobmonkey

Event-driven- and widget/window programming

I search for (a) good book(s) or tutorials that/whose covering all the basic topics about how the in...

[3 replies] Last: It's a pity for that I couldn' take a look inside the book. It's ava... (by dutch)

by M A Noman

parameterized constructor

Is there any process in c++ by using which I can initialize my class object after declare where my c...

[6 replies] Last: Consider: #include <string> #include <iostream> class Myclass { pr... (by seeplus)

by oceanSpray

Search function not properly working

Hey ya'll, I'm having an issue with my search function, which is supposed to search a linked list fo...

[3 replies] Last: An alternative could be (not tried): void ColorsList::searchList(co... (by seeplus)

by onetwo123

File input.txt

Write a function to prepare a text file input.txt by storing 100 random integers in the range from -...

[7 replies] Last: which will display the contents of the container D, add elements to D... (by onetwo123)

by Omnivion

Using a 1D array on a 2D array to calculate movement

Hello! I'm a first-year CS student and no this isn't homework help, this is personal project help fo...

[2 replies] Last: I appreciate the response, we aren't that far into learning C++ and we... (by Omnivion)

by onetwo123

Algorithm search_end_if

I wrote an algorithm using a functor. For example, there is a condition that the elements must be gr...

[7 replies] Last: Um... where else would you put it? I started learning it not so far. ... (by onetwo123)

by NoobAlert

Fibonnaci algo confusion

the algo here is printing the wrong data. I am not getting where am I wrong? Can anyone help me? ...

[5 replies] Last: You have a function that returns an integer value: // function int fi... (by keskiverto)

by DaMcGruber

Need Help Please!

So im kindave stuck on this problem i have and would greatly appreciate some help. i pasted the ques...

[2 replies] Last: You can double check your output with a calculator like this: https://... (by againtry)

by oceanSpray

Linked List only displays first node

Hey ya'll, I'm new to linked lists and I'm having some toruble with displaying my list. I created a ...

[4 replies] Last: Ahhh, I see the error now. Thanks for the help :) (by oceanSpray)

by dutch

Drunkard's Walk

I thought the average distance the drunk would walk is the sqrt of the number of steps. However with...

[11 replies] Last: And, int NO_MOVES{10000}; int NO_TESTS{10000}; gives, RMS di... (by againtry)

by pieterdehoogd

Resize a square

Hey, In a part of my programm I want to resize a square. This is my code: const int MAX = 50; ...

[1 reply] : You don't seem to be setting height/width anywhere? Why use MAX? Shoul... (by seeplus)

by closed account oG8qGNh0

Calender Program (1,2)

Write a program that collects from the user only two pieces of information – (1) the year and (2) ...

[22 replies] Last: @naveenmmenon This is what indentation should look like. #include <i... (by salem c)

by paleryder311

arrays and loops

I am pretty new to programming, so I guess be advised. I am trying to take a user input, here for ...

[4 replies] Last: Thanks for the help, I ended up using the algorithm. (by paleryder311)

General C++ Programming - November 2020 (Page 7)

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