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General C++ Programming - November 2022

It has been a while since I have done any programming in anything other than G code since I have been working as a machine shop engineer. I need to perform a s...

Nov 29, 2022 at 6:15pm

[11 replies] Last: Or this one which concatenate strings - 3 words for an entry in the ve... (by Geckoo)

by JUANDENT

typename as a type template parameter

What does "typename = ..." mean in the code below? Is it a type template parameter? but it evaluates to void if T is an array?? template<class T, typena...

Nov 25, 2022 at 12:30pm

[2 replies] Last: Just a small further point. You can use typename instead of class in t... (by seeplus)

by Worldtreeboy

is there any bias random number generator in c+++

Is there Bias random number generator to use in c++ that can skew the generated numbers towards one end? for e.g. If I generate 100 random numbers between...

Nov 23, 2022 at 8:59am

[14 replies] Last: See https://en.wikipedia.org/wiki/Chebyshev%27s_inequality particularl... (by lastchance)

by Cambalinho

why these 'if' seems ignored? (1,2,3)

see these code: void DrawLine(int X0, int Y0, int Z0, int X1, int Y1, int Z1, COLORREF LineColor = RGB(255,0,0), bool Refresh=true) { //Getting ...

Nov 22, 2022 at 10:46pm

[43 replies] Last: yes.... i'm doing another test.. maybe i can win much more speed. i'm ... (by Cambalinho)

by gabriel11

How do I bypass a Segmentation fault?

Hey guys. So I've been programming in C++ for a few months now, and I've been enjoying it all the way through. This is my first time using a programming lan...

Nov 21, 2022 at 5:24am

[4 replies] Last: > and I'm currently trying to do this problem: ... > everything works ... (by salem c)

by Hawlong

How to read text from a eax

i make hook by c++ to copy string from eax 0F881E5 | A3 B84C8B0F | mov dword ptr ds:[<void *__ChatMsg>],eax xdb64 dword ptr ds:[0F8B4CB8 &L"xa...

Nov 20, 2022 at 11:57pm

[4 replies] Last: Thanks for answer jonnin , When printing, strange letters appear, know... (by Hawlong)

by BrainD3ad

Stay in file line count?

Hello everyone, I have a question for my c++ code. I have an assignment where I get have a file with different expressions to which I have to convert to post, p...

Nov 20, 2022 at 11:14am

[3 replies] Last: Perhaps something like: #include <fstream> #include <iomanip> #incl... (by seeplus)

by jzilliam

Monopoly -- Forum (1,2,3)

I'm trying to write snippet code about monopoly and I would like to know what data structures I should use for a playercount function (like choosing between 2-4...

Nov 19, 2022 at 1:03pm

[51 replies] Last: player.cpp #include <iostream> #include <algorithm> #include <vector... (by seeplus)

by highwayman

Viability of Casting `void(*)(int*)` to `void(*)(...)`

I was thinking about the std::function<> class and I'm trying to figure out what that would look like in C. So far I got this: typedef struct _StatefulFunc...

Nov 17, 2022 at 4:43am

[10 replies] Last: That's pretty interesting though it feels weird to identify UB as perm... (by highwayman)

by thmm

std::min with const char *

Seems that std::min doesn't work with const char * Has anyone encountered this problem as well ? #include <iostream> #include <algorithm> int main() { ...

Nov 16, 2022 at 8:49pm

[15 replies] Last: I can imagine some legacy code that uses const char*. Yes, old code ... (by jonnin)

by Heiru

Initialize an array of objects and show them on screen

Hello. I need to make an array (in the main function) of objects (class Person), initialize them and show them on the screen with the operator in line 129. But ...

Nov 14, 2022 at 12:35am

[2 replies] Last: Thank you. I wrote the constructors again to be safe and got rid of th... (by Heiru)

by LukeProducts

Array of multiple types

Hello guys, ive written this code: class boundList { struct node{ void *elem{nullptr}; node *next{nullptr}; }; node anchor; node *_Last; public...

Nov 13, 2022 at 4:32pm

[8 replies] Last: If you know types during compile-time, then you know types and can ess... (by keskiverto)

by hebrerillo

TLV library in C

Hello everyone!! Does anyone know about a TLV library in C? I have to write the contents of some buffer into disk using TLV format. Thanks in advance!

Nov 12, 2022 at 5:24pm

[2 replies] Last: Like George, I have not had to use one and cannot recommend one random... (by jonnin)

by JamieAl

Optimization with Eigen Tensors and OpenMP

I have an older post about optimization with Eigen matrices where answers were EXTREMELY helpful. The thing is the code I used there is a 2D code and the optimi...

Nov 11, 2022 at 11:46pm

[4 replies] Last: @mbozzi Thanks, I am looking at it. Trying to test several things at ... (by JamieAl)

by JUANDENT

How to add N weeks to a sys_days?

I have a starting sys_days called start but need to find the sys_days corresponding to start + N weeks into the future???

Nov 11, 2022 at 6:17pm

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

by ningfan666

A question about virtual function

Hello I have a question about virtual function. I have a base class and a derived class below: class Person { public: virtual void eat() = 0; }; class Stud...

Nov 11, 2022 at 4:43pm

[2 replies] Last: Thank you so much！I get it. (by ningfan666)

by Ace Blackwell

Help understanding Class Exercise

All, being brief as possible, I’m working on an exercise from C++ Primer Plus Sixth Ed. by Stephen Prata. Chapt 10 Ex 6 for those playing along at home. I was...

Nov 11, 2022 at 3:42pm

[4 replies] Last: You may or may not be aware, but in c++, a number of object methods ar... (by jonnin)

by Mobo01

Adding many Python files and directories to a single dmg file

How can I make a single dmg file out of many Python files in different folders? I know that's doable for a single file, but how can I do it for several? I can ...

Nov 10, 2022 at 1:54pm

[3 replies] Last: Have you tried turning it off and on again? (by helios)

by marhuum

Any explaining ' following a name?

As came across the link below, is anyone very knowledgeable on c++ syntax so explaining the char ' following identifier name (e,g below and following link is th...

Nov 9, 2022 at 8:11pm

[5 replies] Last: I think the OP in that HN thread had rather unusual ideas. It's pretty... (by helios)

by jetm0t0

Debugging a delete error?

I am pretty sure I have some sort of deletion error. How would I go about debugging it? I am still not savvy with using the call stack and finding out what it c...

Nov 9, 2022 at 3:40am

[9 replies] Last: Sleep tight guys I figured it out. I also had 2 objects in main that w... (by jetm0t0)

November 2022 Pages: 12

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