General C++ Programming - C++ Forum

by frek

Passing pointers to function taking iterators

Suppose for some reason this code is meant: void accum(std::vector<double>::iterator bg, std::vecto...

[12 replies] Last: [quote=frek]Why don't you, Peter, as a great coder, go for C++20/23. T... (by Peter87)

by Gyiove

event class and dynamic bind paramaters

I have this c++ class here which can register class function into event class and then call them all...

[3 replies] Last: You're making this more complicated than necessary, IMHO. You don't n... (by dhayden)

by frek

C++ multithreading deadlock example

std::mutex m1, m2; void f_1() { std::unique_lock l1{m1}, l2{m2}; } void f_2() { std::unique_lock...

[9 replies] Last: got it, thanks. (by frek)

by Bengbers

How should I export the API of a shared library?

I use Eclipse CDT on a Fedora machine for developing C++ code. In the first project I programmed in ...

[7 replies] Last: I've been trying for nearly a week to create submodules for libBasexCp... (by Bengbers)

by dodge55

Shortcut Icon same as application icon

I have a compiled Win32 app that uses a .ico resource file, declared in the .cpp file. My icon disp...

[2 replies] Last: I think you can direct the shortcut to the icon, or the file where it ... (by jonnin)

by kigar64551

Exit condition for 'std::unordered_map' iterator loop with a step size > 1

Suppose I have an std::unordered_map containing a large number of elements. I need to process ea...

[7 replies] Last: C++23: for( auto&& [k,v] : g_input | std::views::as_const | std::view... (by JLBorges)

by Alejandro Antonio

Implement fast hash function

Hi everyone, I have a project where I need to apply a hash function to some variables in a sequ...

[4 replies] Last: Thanks for your help! These algorithms seem to be what I need. (by Alejandro Antonio)

by darkdave

freeglut dll and lib

Hello all, I have a c++ project in Visual Studio 6. I have a GL folder where I keep the glut32.lib a...

[7 replies] Last: I installed VS 2012 That version is not as ancient as VS6, but it is... (by deleted account xyzzy)

by newbieg

Linkers and Libraries

I've been building a framework for about a year now that builds an OOP for SDL (recently updated for...

[4 replies] Last: Pkg-config was really easy to set up, it just requires writing a singl... (by newbieg)

by JUANDENT

how to specify gcm.cache in g++ command line option?

g++ needs to have access to the compiled modules that are required by a module. Thus,. if we compile...

[2 replies] Last: the gcm.cache contains compiled information from the module that is re... (by JUANDENT)

by kitfox

Should I cache to disk the memory used by my undo stack?

I've written a program what uses an undo stack to keep track of edits the user makes. At the moment...

[3 replies] Last: I think you shouldn't care too munch, unless we really talk about mas... (by kigar64551)

by JUANDENT

compiling modules C++ 20 with g++ 12.2.0

I am using the following commands: g++ -std=c++20 -fmodules-ts -c -x c++ cxx_type_traits_poly...

[1 reply] : Take a look at this: sqlite_orm::internal ::polyfill Is that the na... (by coder777)

by rozick1

comparing actual to expected values in neural network

hello i am implementing a neural network using the Eigen library (for matrix multiplication). in o...

[no replies]

by Geckoo

MIPS

Hello. I am working on a tiny interpreter for MIPS language. It works well as expected. I have imple...

[no replies]

by Cambalinho

why C\C++ don't have a standard Graphics, Sound or others libraries?

why C\C++ don't have a standard Graphics, sound or others libraries? on Turbo C\C++ we have the Gra...

[5 replies] Last: thanks for all to all (by Cambalinho)

by Blueshark1

Fixing wrong radius values on table output?

Hello, For a project I am supposed to have my code output a table as temperature and radius c...

[14 replies] Last: Try this one. It's based on the linear (for density) stellar model in... (by lastchance)

by frek

CTAD

Hi all, template <typename T> struct Length { T sz; }; void foo(Length len) { std::cout << le...

[6 replies] Last: Note that a class template is not a class, it's something you use to g... (by Peter87)

by neerajsati

Try to write Bubble Sort Program

Hi, I am confused about some code I found online(https://www.techgeekbuzz.com/blog/recursive-bubb...

[5 replies] Last: If you actually do look at the link the code the spammer vomited up is... (by deleted account xyzzy)

by JUANDENT

How to specify a concept that requires a const method?

Hi, I have this: class Circle : public GeoObj { public: virtual void draw() const o...

[2 replies] Last: yes you are correct about every type being convertible to void! Thank... (by JUANDENT)

by malibor

How should center alignment of child components work?

I'm working on a class called "LayoutManager" which provides interface to layout child windows or co...

[6 replies] Last: Option 1 and 4 are "left first then right" That is from the center, p... (by malibor)

General C++ Programming - May 2023

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