Heh heh heh, I wrote an awesomeness.

[Duthomhas]

Funny how old topics stick with you. Someone asked about tokenizing strings with a function that returns an array over at SO. This was my answer.

https://stackoverflow.com/a/69512860/2706707

Feeling kind of accomplished, I guess.

[seeplus]

That's one of the reasons I moved from c to C++ about 25 years ago - to get away from code like this. Split is dead easy in C++20:

#include <vector>
#include <iostream>
#include <string>
#include <ranges>

auto str_split(const std::string& str, const std::string& delim) {
	std::vector<std::string> vec;

	for (const auto& e : std::ranges::split_view(str, delim))
		if (const auto d {std::ranges::distance(e)}; d > 0)
			vec.emplace_back(&*e.begin(), &*e.begin() + d);

	return vec;
}

int main() {
	const auto split {str_split("++All+Along+the+Watchtower++", "+")};

	for (const auto& s : split)
		std::cout << s << '\n';

	std::cout << '\n';
}

All
Along
the
Watchtower

[lastchance]

#include <iostream>
#include <vector>
#include <string>
using namespace std;

vector<string> split( const string &str, string delim )
{
   vector<string> result;
   for ( int p = 0, q = 0; q != string::npos; p = q + 1 )
   {
      q = str.find_first_of( delim, p );
      result.push_back( str.substr( p, ( q == string::npos ? str.size() : q ) - p ) );
   }
   return result;
}

int main()
{
   for ( string s : split( "Someone+left+the+cake+out+in+the+rain", "+" ) ) cout << s << '\n';
}

Someone
left
the
cake
out
in
the
rain