Unsure if it works for classes as well

Sorry, what is the best way to define a template class in a .h file and implement it in a .cpp file? I saw that ppl include .cpp in main. So, I'm interested how do you all do that

No one

About specializations, put extern template class ClassName<template arguments>; inside hpp file and now you can write the definition of concrete class with concrete template arguments inside cpp

Hello! I am programming a project but i have a trouble with a map, in my program i have a function that read a class called 'Sesion' and then i need to insert it into a map<string,Sesion>. I checked just before the map.insert() function which where the values of the pair i was going to insert and everything was ok, but when i use find function to get it back and read data i inserted before there's an element of 'Sesion' which hasn't been inserted within the 'Sesion', it's a map<string, pair<string,string>> an becomes empty when it wasn't. I've got no idea what happens i tried to look for on internet but nothing xdddd

Hello! I am programming a project but i have a trouble with a map, in my program i have a function that read a class called 'Sesion' and then i need to insert it into a map<string,Sesion>. I checked just before the map.insert() function which where the values of the pair i was going to insert and everything was ok, but when i use find function to get it back and read data i inserted before there's an element of 'Sesion' which hasn't been inserted within the 'Sesion', it's a map<string, pair<string,string>> an becomes empty when it wasn't. I've got no idea what happens i tried to look for on internet but nothing xdddd

do you use map::operator[] somewhere?

could you paste an example code to demonstrate the problem?

You can't just put template specialization in cpp file( But, you can put there specializations of this templates. The reason is template is just a set of rules of how to instantiate this template class. Imagine if in compile time you try to replace template arguments with concrete types. If the code where you should place this type in other translation unit, you just cant acces it) So just write the whole template in hpp file 😃

class Sesion{ private: BinTree<string> arbol_problemas; string id; map<string,pair<string,string>> problemas; };

struct Entity { static int x, y; void Print() { std::cout << x <<"," << y << std::endl; } }; int Entity::x; int Entity::y; Why should I declare them outside the struct also If I don't I'm unable to Entity e; E.x=2;

This is why)

int Entity::x; definition

Does private/public data exposure matters? Try changing it Idk tho

Best programming language to start with?

qbasic

however, strcmp(str1, str2) will return <0 ; how its possible?

because a < z. Compare two strings Compares the C string str1 to the C string str2. This function starts comparing the first character of each string. If they are equal to each other, it continues with the following pairs until the characters differ or until a terminating null-character is reached. https://www.cplusplus.com/reference/cstring/strcmp/

awesome. thank you ^^

https://pastebin.com/H9UPfpyh I want to optimize this local maxima function. It is taking around 292 micro seconds for array length 1000 need to reduce it around 230us something. It is for digital signal processing hence want to reduce the time. Any suggestions for the same?

Guys I need a compiler for windows 32 bit for C Anyone??

Hi guys, have you tried Rust? What do you think about that language? Will it replace C/C++ in the future? I asked here because I will get answer from people with some experience in C/C++ before using Rust. (is this off topic?)

Guys I need a compiler for windows 32 bit for C Anyone??

Hi guys, have you tried Rust? What do you think about that language? Will it replace C/C++ in the future? I asked here because I will get answer from people with some experience in C/C++ before using Rust. (is this off topic?)

C/C++ may be replaced by Rust in a distant future but for now it doesn't calculate. Lots of software still use C — eg. Linux will be using C for a long time. Nobody's gonna try to rewrite it into Rust. Sure, new software is more and more often written in Rust but you still have to get the older soft to work :)

Hi guys, have you tried Rust? What do you think about that language? Will it replace C/C++ in the future? I asked here because I will get answer from people with some experience in C/C++ before using Rust. (is this off topic?)

I've written a lot of Rust and it has some great features. But replacing C/C++ is impossible because there are too many C/C++ programmers and too much legacy code.

HOW??????

Also Rust has too much abstraction. That's definitely a problem for some software...

You can use raw pointers if you want to. Just not in safe code

But no one typed it

Yeah but that's now the point of using rust

Cus no pointers?