Beginners - C++ Forum

by admin

Welcome -- read before posting!

Welcome to the beginner's forum in C++.com! In this forum, users can to talk about any topic relate...

May 9, 2008 at 10:14am

[2 replies] Last: How To Answer Questions in a Helpful Way Be gentle. Problem-relat... (by admin)

by Zolaboony

Console Closing Down (1,2,3,4,5,6,7)

Hi, i am new to C++ and have just written my "Hello World" program. It worked all right but the cons...

Nov 30, 2008 at 3:14am

[120 replies] Last: It displayed "Hello world" after you pressed Enter. int c is a ... (by Duthomhas)

by Ch1156

Is my understanding of pointers correct?

So I've been studying pointers and really trying to learn how to use them and how they work, and I...

Mar 26, 2025 at 2:18am

[19 replies] Last: I have just discovered that [ ] can be applied to type constructors ... (by TheIdeasMan)

by ElusiveTau

Getter for enum member returns a copy of enum?

I came across something non-intuitive, found a solution, but don't fully understand why the solution...

Mar 19, 2025 at 2:32am

[11 replies] Last: My view with regard to interface and not needing setters and maybe nee... (by TheIdeasMan)

by Jonathan100

Using of voltile qualifier

Hi, Where should i use volatile keyword in cpp? I wrote a code in cpp which communicating with a me...

Mar 1, 2025 at 6:06pm

[3 replies] Last: [quote=ElusiveTau]In multi-threaded applications, volatile can be used... (by Peter87)

by Ch1156

Using std::variant to reduce getter and setter clutter

I'm experimenting with new ways to reduce code bloat, and one of my biggest gripes is always having ...

Mar 1, 2025 at 5:40am

[18 replies] Last: Just on the C++ language, IMO it does seem a pain that things take so ... (by TheIdeasMan)

by Coubarrie

C++ and the Government

Could anyone care to comment on the following? https://www.theregister.com/2024/11/08/the_us_govern...

Feb 15, 2025 at 2:39am

[4 replies] Last: you use what the government tells you to if you work for them, directl... (by jonnin)

by Ch1156

Is this how you do object chaining?

Im learning about object chaining and im wondering if im doing it correctly. #include <iostrea...

Feb 8, 2025 at 4:35pm

[9 replies] Last: Thank you for all the replies! That seems like a straight forward conc... (by Ch1156)

by nowy20180820

Programming math - polynomial class

How to write templated polynomial class I would like to have overloaded operators like + ...

Feb 7, 2025 at 10:37pm

[8 replies] Last: A wouldn't make this a template, unless you need it to work with float... (by dhayden)

by Jonathan100

stack and heap

Hi, I have some programming concepts question: Why is stack (in context of stack and heap) co...

Feb 4, 2025 at 1:19pm

[9 replies] Last: What question, exactly? Weren't here plenty of explanations ("solution... (by keskiverto)

by zzzhhh

Should the subscript "opt" be dropped in the definition of "array of N T" in the standard?

This is the definitive syntax of "array of N T" in C++ Standard https://eel.is/c++draft/dcl.array#1 ...

Jan 20, 2025 at 12:03pm

[3 replies] Last: Hi Is it because the array bound may be omitted when there are initia... (by TheIdeasMan)

by zzzhhh

Where is const mandated in the Standard when binding an lvalue reference to an rvalue?

I'm reading the part of the Standard about initializing an lvalue reference from an rvalue (https://...

Jan 12, 2025 at 10:10am

[1 reply] : I don't think I've ever actually read the standard in over 30 years of... (by seeplus)

by zzzhhh

Which item stipulates that A() is a prvalue?

class A { ... }; A(); This webpage lists all possible forms of prvalue expre...

Jan 4, 2025 at 5:33pm

[2 replies] Last: I believe that A() is a function-style cast expression and is covered ... (by mbozzi)

by ElusiveTau

How to compare int class template value?

I'm aware I should use std::string but this is question is about using template specialization a spe...

Dec 31, 2024 at 12:16am

[2 replies] Last: 2. That's a good point. Only up to MAX_CSTR_SIZE-1 bytes will be copie... (by ElusiveTau)

by ElusiveTau

Template errors creating a map<int,std::thread> using map::emplace

I created a class to try out std::lock_guard. The first function, UnsafeExample compiles and run...

Dec 19, 2024 at 3:25pm

[2 replies] Last: Thanks Peter. That was it. 1. std::ref(coutMutex) was necessary, for ... (by ElusiveTau)

by ElusiveTau

How to initialize base class member with subclass member?

I'm working with code where CustomThreadApi is not modifiable. CustomThreadApi has a ctor that tak...

Dec 18, 2024 at 5:50pm

[2 replies] Last: baseClassBuff is unnecessary. I can just reuse MyThreadClass.Name .... (by ElusiveTau)

by Cyclone

Removing double quotes from Cstring

Hi, sorry its late... I am trying to do a few things with strings. - I need to remove double quot...

Dec 17, 2024 at 4:25pm

[8 replies] Last: You only get double quotes if some component of the filename path has ... (by Duthomhas)

by Shervan360

Are these ternary operators the same?

Hello, What are the differences between these? #include <iostream> int main() { ...

Dec 1, 2024 at 9:47pm

[8 replies] Last: I think some chips have a way to test a single bit but in general, I d... (by jonnin)

by Dazzer

How to start with audio plugin GUI design?

Hi folks, I'm interested in learning C++ for audio plugin design, but I'm a bit unusual in that i...

Nov 14, 2024 at 5:34pm

[1 reply] : we used to call it RAD (rapid application development) and I am not su... (by jonnin)

by the other jorge

How to get program to distribute input by alternating between two, multi-line string inputs

Hello I need to get this output: 1) type a: 1a type b: 1b 2) type a: 2a type b...

Nov 13, 2024 at 12:47pm

[5 replies] Last: You can do it with just 1 loop to read the data. Consider: #include... (by seeplus)