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Description of the most important classes, functions and objects of the Standard Language Library, with descriptive fully-functional short programs as examples.
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by zzzhhh

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

I'm reading the part of the Standard about initializing an lvalue reference from an rvalue (https://eel.is/c++draft/dcl.init.ref#5.3 ). I know a reference to co...

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

by zapshe

AI is something special (1,2) [Lounge]

I feel like AI is getting overlooked by many. I feel like I have a real professional in any field I want to learn about just waiting for me to ask things. Yes,...

[24 replies] Last: Let's write a function that takes an input and an output and gives a ... (by zapshe)

by zzzhhh

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

This is the definitive syntax of "array of N T" in C++ Standard https://eel.is/c++draft/dcl.array#1 : D1 [ constant-expression_opt ] ... [/quote] I think t...

[2 replies] Last: Thank you! (by zzzhhh)

by Jonathan100

stack and heap [Beginners]

Hi, I have some programming concepts question: Why is stack (in context of stack and heap) considered LIFO (last in first out)? The last time i checke...

[8 replies] Last: I guess that you are talking about "program stack"[/quote] Yes. But n... (by kigar64551)

by Duthomhas

Short films worth watching [Lounge]

I don’t particularly like horror, but this one was great! The Curse of Dracular[/b] https://youtu.be/kjd6jETfd5c?si=Oa9pabr4-kvrHC6v (Contains a claymatio...

[8 replies] Last: LOL, yeah, it was Melissa driving, I wasn’t in the car, but she saw an... (by Duthomhas)

by zzzhhh

Which item stipulates that A() is a prvalue? [Beginners]

class A { ... }; A(); [/code] This webpage lists all possible forms of prvalue expressions: https://en.cppreference.com/w/cpp/language/val...

[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? [Beginners]

I'm aware I should use std::string but this is question is about using template specialization a specific way. I'm learning about template specialization and ...

[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 [Beginners]

I created a class to try out std::lock_guard. The first function, UnsafeExample[/code] compiles and runs fine. The second example, [code]SafeExample[/code] d...

[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? [Beginners]

I'm working with code where CustomThreadApi[/code] is not modifiable. CustomThreadApi has a ctor that takes a [code]const char*[/code]. I would like to assign ...

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

by Cyclone

Removing double quotes from Cstring [Beginners]

Hi, sorry its late... I am trying to do a few things with strings. - I need to remove double quotes from a users input - Then the string needs to be divide i...

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