I want to define a std::variant that can store a vector of pairs, with strings and Values.
I want to create a structure like below:
typedef std::variant<bool, int, float, std::vector<std::pair<std::string, Value>>> Value;
How can I do it in C 17?
CodePudding user response：
As HolyBlackCat notes in the comments, you need Value to be a type (but it can be incomplete) to use it in the pair.
struct Value
{
std::variant<bool, int, float, std::vector<std::pair<std::string, Value>>> data;
};