General C++ Programming

by admin

Welcome to this board!

Welcome to the general programming forum in C++.com! In this forum, users can to talk about any top...

[no replies]

by helios

About full-duplex sockets

Sockets are supposed to be full-duplex, right? So the endpoints should be able to send and receive l...

[1 reply] : I'm not even sure what API you are using here 🤔 But, if we are tal... (by kigar64551)

by Cplusc

Inconsistent Results with Different Methods

I’m facing an issue in a C++ project where two different methods for computing the same values are...

[12 replies] Last: @TheIdeasMan, thank you for your attention. In the domain class, I've ... (by Cplusc)

by JUANDENT

Mismatch overload problem

Why does s have the value false? template<typename T> char test_have_range(decltype(&T::begi...

[1 reply] : #ifndef DUTHOMHAS_IS_ITERABLE_HPP #define DUTHOMHAS_IS_ITERABLE_HPP ... (by Duthomhas)

by JUANDENT

How to test if a type T has a begin<T> defined

I have a SFINAE context where I have the following: struct have_sort { char c; }; struct ha...

[no replies]

by JUANDENT

why testing for member pointer determines the template type is a class?

why does this code determine if the type is a class: template<typename T> class is_class { templ...

[4 replies] Last: Thanks!! (by JUANDENT)

by lostwithcpp

Trouble with seeing where variable is initialized?

Hello, This question is in regards to the initialization of the variable value_type value; I ca...

[4 replies] Last: [quote=lostwithcpp]this is only for structs, not classes? Technically... (by Peter87)

by Cplusc

C1090 error (1,2)

I am getting the following annoying and frustrating error which appeared suddenly out of nowhere. th...

[23 replies] Last: hardware that old wouldn't be able to slot enough ram to run it either... (by jonnin)

by PacR

Read nested structures from file.

Hi guyz im having trouble reading structures from text file containing: // this is example.txt...

[19 replies] Last: As another take on this, consider: #include <iostream> #include <fs... (by seeplus)

by lostwithcpp

How to find the Type of a struct that is passed as an argument and the template arguments for a lambda function?

The question I have pertains to the type of the structs that are passed as a function argument into ...

[5 replies] Last: thanks for all the help (by lostwithcpp)

by cn00by

"large" project, crashes, variable "overlap", gdb

hello, i searching for days for an Segmentation fault. What i ve done: i try: - valgrind - gd...

[1 reply] : The code that you have posted does not contain any header files. If t... (by Peter87)

by JUANDENT

how can I generalize a structure using templates?

Hi, This is something I don't want to write for each table in a database and am sure templates woul...

[5 replies] Last: used templates! (by JUANDENT)

by JUANDENT

What is the difference between module partitions and submodules?

I have a module called math that export imports two submodules like this: export module math; ...

[4 replies] Last: I haven’t touched modules yet. I'm working through some of the bas... (by George P)

by JUANDENT

cannot access OnEvent(Button&, int)!

class EmptyType {}; template < class TList, template <class AtomicType, class...

[2 replies] Last: thanks!! (by JUANDENT)

by Cplusc

Applying Boundary Condition

Firstly, I'd like to extend my apologies to anyone viewing this question, as it may not strictly per...

[3 replies] Last: @Cplusc Ok, no worries. Have you made any progress using a debugger? (by TheIdeasMan)

by JUANDENT

A problem with GenLinearHierarchy from Alexandrescu's design

Hi, I am studying Andrei Alexandrescu's Modern C++ Design book and cannot access the OnEvent(Butt...

[no replies]

by JUANDENT

Why does move not erase the source?

Hi, I have this code: vector<string> coll1 = { "Hello", "this", "is", "an", "example" }; l...

[9 replies] Last: thank you all!! (by JUANDENT)

by JamieAl

1D FFTs of an Eigen tensor

So I am trying to take an FFT along a specific direction of an Eigen tensor, similarly to my code in...

[10 replies] Last: I was trying to take the 1D FFT along each direction separately to un... (by JamieAl)

by George P

C++23 Formatting Ranges

C++23 added the ability to "print out" using formatting options a container directly instead of havi...

[5 replies] Last: I would recommend two books, one on C++20 and the other on C++23, by t... (by George P)

by Zaap

vector push_back passing size from 0 to overflow

Hi, please see the following code and the associated prints. I also add the Argument class below. ...

[3 replies] Last: Bumping this to just give some insight that might be generally helpful... (by Ganado)

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