non-aggregate type 'set<int>' cannot be initialized with an initializer list

[memepapa]

hi all, especially JLBorges who has been extremely helpful.

i split time learning from books and youtube tutorials (while practicing coding questions on hackerrank, which is often not clearly worded)

when i encounter problems, such as the one below. i'll try googling and reading the books again. but when i'm stuck, i'll come here


would you advise me how i can edit the code to let it compile? (i use gcc on my macbook terminal). i'm following this code example on youtube, sees it get compiled successfully but i can't reproduce the results.



non-aggregate type 'set<int>' cannot be initialized with an initializer list
set<int> Set = {1,2,5,4,3,1,2,3,4,5};
^ ~~~~~~~~~~~~~~~~~~~~~

#include <iostream>
#include <set>
#include <string>
#include <functional>
using namespace std;

int main() 
{
	set<int> Set = {1,2,5,4,3,1,2,3,4,5};
	for(const auto& e: Set)
	{
		cout << e << endl;
	}
return 0;

}

[JLBorges]

Compile under C++11 or later.
For example: g++ -std=c++20 -O3 -Wall -Wextra -pedantic-errors main.cpp

[seeplus]

As C++20, this is simply:

#include <iostream>
#include <set>

int main() {
	const std::set Set {1, 2, 5, 4, 3, 1, 2, 3, 4, 5};

	for (const auto& e : Set)
		std::cout << e << '\n';
}