Beginners - C++ Forum - December 2019 (Page 4)

What is a Header file/ how to use it

I'm kinda new to C++ and i always programmed without header files but i heard header files are really important but i don't know what that is / how to use it. C...

[2 replies] Last: additional info: http://freesourcec.com/how-does-include-work/ (by kakaducsy)

by jamiprogrammer

Looking to Loop A menu

So I've searched all over but I can't seem to find any help on how to loop menus a specific way. I know this question has been asked a million times, but I can'...

[3 replies] Last: @jonnin and @repeater, thank you! I figured a do/Whle would be the bes... (by jamiprogrammer)

by MasterDak

When You First Started

I have a quite simple question. When you started to learn how to program in general, how did you decide what projects to work on to reinforce what it is that...

[13 replies] Last: MasterDak, I was about to post almost this same question yesterday. I... (by failedreality)

by ExponentialP

Interface vs Class Declarations

Hi all, I was hoping to get some clarification on a piece of conceptual understanding I've been scratching my head about over the last few days. It concerns...

[12 replies] Last: Wouldn't the pImpl pattern achieve the same thing more easily? Yes. ... (by jonnin)

by marialavr

Solving car fueling problem

I am trying to solve the car fueling problem. The problem sounds like this: You are going to travel to another city that is located 𝑑 miles away from you...

[4 replies] Last: Thank you. Yes, I was wondering how I could overcome this issue with t... (by marialavr)

by kramsuiluj

Removing any element on a list

I want to add a remove feature by accessing any part of the list. for example: I added 3 names Mark Max May I want to remove it by searching the name it...

[11 replies] Last: PS Instead of the iterator being 'show' maybe 'name_in_list' might add... (by againtry)

by galmaegi

Need some help! :')

How do i make nested loop to create these numbers? 10 11 13 16 20 25 Please help me, thanks!

[14 replies] Last: For god's sake lastchance, you even took the time and effort x') Bless (by H00G0)

by meggmegg4

Making a calculator

So i'm trying to figure a way to call back to a place in a vector (labelled history) but backwards. It's hard to explain for me. Basically i'm making a calculat...

[8 replies] Last: Be grateful your instructor/school uses DevC++. There are programmin... (by George P)

by ICantC

Printing template types

My usual overload for operator << doesn't seem to be working with templates, no matter what type I put in, I get some weird hex and have tried several methods a...

[1 reply] : Try putting a print statement in your operator<<, see if it prints. P... (by Ganado)

by closed account 1Ck93TCk

populate two-dimensional array with two one-dimensional arrays

I'm having a hard time working out how to approach this, and I didn't find anything on web or forum searches that helped. I have two one-dimensional arrays...

[3 replies] Last: I got it figured out. I just needed a nudge. Thank you! (by closed account 1Ck93TCk)

by seatea

Possible to merge strings in an order of your chosing?

Hi! Let's consider having two strings: string example1 = "A3B3C3DEF3G" string example2 = "HIJKLMN" Is it possible to merge these but leave the...

[1 reply] : loop over string calling a transform() that calls your lambda that may... (by jonnin)

by ddoraes

SOS I couldn't stop the loop in TIC TAC TOE game

How to stop the loop? It keep repeating itself #include <stdio.h> #include <stdlib.h> int b ; /* board. 0: blank; -1: computer; 1: human */ //winning patt...

[3 replies] Last: change while (1) printf("%s", game(first = !first)); to char yn = 0; ... (by jonnin)

by blobbb

How do I get this to print only the integer solutions?

If I wanted to adjust my code so that only integer solutions of x and i are displayed, how would I do that? For example, if x is 2 then x should be displayed al...

[2 replies] Last: as a side note, loops with a double loop variable have risks of not do... (by jonnin)

by Shervan360

Pointer to array of character in C++

Hello, I want to declare a pointer to an array of characters in C++. How can I do it? #include <iostream> int main() { char letter ; /...

[7 replies] Last: you don't need an explicit pointer to do C on it. sprintf(letter, "%s... (by jonnin)

by Shervan360

Sequence of Chars in C

Hello, I want to allocate memory with pointer and get string from user. I don't want to use an array. I have the below error. Exception thrown at 0x7BD...

[13 replies] Last: new/delete is c++ malloc/free is C you cannot delete where you used m... (by jonnin)

by Shervan360

Detecting Enter and ESC in C++ with ASCII code

Hello, How can I detecting Enter and ESC in C++ with ASCII code? I put one breakpoint in the (int)ch != 27 When I press enter key I saw char is 3 instea...

[1 reply] : 'enter' varies by system, its a mix of 10 and 13 ascii codes (or both,... (by jonnin)

by rts17893

accessing an object from a vector

How would I be able to access x or y variables from the octagons vector after storing the object. I know how I'd access x and y from the lots_of_coordinates ve...

[6 replies] Last: Why do you want vector of pointers? with octagons.push_back(new Octa... (by keskiverto)

by liayag

How to index vectors with data stored in a text file.

I have a text file that has information about different cars. 1 2019 Honda Civic Sedan 23000 2 2019 Honda Pilot SUV 32000 3 2019 Honda Odyssey Sedan 27000 I wa...

[7 replies] Last: This definitely helped a lot. Thank you so much!! (by liayag)

by iOsama

Calendar functions

i need someone to explain these functions to me, What do these functions do! void leafCalendar(int inputYear, int inputMonth) { i...

[2 replies] Last: The best way to understand stuff like this is to write it yourself ... (by Duthomhas)

by Deadweight77

Stack + Template

I've been trying to create a system where you can enter in the student name(will do the name later)and grades for each class, but I'm having trouble with displa...

[4 replies] Last: answer is spelled wrong consistently. As long as every instance of t... (by George P)

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Beginners - December 2019 (Page 4)