小编Æsi*_*sir的帖子

我想将 的值转换std::variant为std::string，但此代码不起作用：

using AnyType = std::variant <bool, char, integer, double, std::string, std::vector <AnyType>/*, Object, Extern, InFile*/>;

struct AnyGet {
    AnyGet() {}

    std::string operator()(std::string& result, const bool& _ctx) { return _ctx ? "true" : "false"; }
    std::string operator()(std::string& result, const char& _ctx) { return std::string(1, _ctx); }
    std::string operator()(std::string& result, const integer& _ctx) { return std::to_string(_ctx); }
    std::string operator()(std::string& result, const double& _ctx) { return std::to_string(_ctx); }
    std::string operator()(std::string& result, const std::string& _ctx) { return _ctx; } …