To avoid memory allocations, and if you can modify the source string in place, then an alternative is to return std::vector<char*> and modify the string to replace the separators with '\0'.
Of course, as that post suggests, use reserve() to encourage having the vector itself as optimal as possible. (In my strsplit call I pass it in as optional so each caller can optimize it).
Of course, as that post suggests, use reserve() to encourage having the vector itself as optimal as possible. (In my strsplit call I pass it in as optional so each caller can optimize it).