ircd::stats: Additional arithmetic/access operators on item.

include/ircd/stats.h

@@ -27,6 +27,8 @@ namespace ircd::stats
 	value_type &inc(item &, const value_type & = 1);
 	value_type &dec(item &, const value_type & = 1);
 	value_type &set(item &, const value_type & = 0);
+
+	std::ostream &operator<<(std::ostream &, const item &);
 }
 
 struct ircd::stats::item
@@ -39,9 +41,15 @@ struct ircd::stats::item
 	value_type val;
 
   public:
+	explicit operator const value_type &() const;
+	explicit operator value_type &();
+	bool operator!() const;
+
 	item &operator+=(const value_type &) &;
 	item &operator-=(const value_type &) &;
 	item &operator=(const value_type &) &;
+	item &operator++();
+	item &operator--();
 
 	item(const json::members &);
 	item(item &&) = delete;
@@ -49,6 +57,20 @@ struct ircd::stats::item
 	~item() noexcept;
 };
 
+inline ircd::stats::item &
+ircd::stats::item::operator--()
+{
+	--val;
+	return *this;
+}
+
+inline ircd::stats::item &
+ircd::stats::item::operator++()
+{
+	++val;
+	return *this;
+}
+
 inline ircd::stats::item &
 ircd::stats::item::operator=(const value_type &v)
 &
@@ -73,6 +95,26 @@ ircd::stats::item::operator+=(const value_type &v)
 	return *this;
 }
 
+inline bool
+ircd::stats::item::operator!()
+const
+{
+	return !val;
+}
+
+inline ircd::stats::item::operator
+value_type &()
+{
+	return val;
+}
+
+inline ircd::stats::item::operator
+const value_type &()
+const
+{
+	return val;
+}
+
 inline ircd::stats::value_type &
 ircd::stats::set(item &item,
                  const value_type &v)

ircd/stats.cc

@@ -12,6 +12,13 @@ decltype(ircd::stats::items)
 ircd::stats::items
 {};
 
+std::ostream &
+ircd::stats::operator<<(std::ostream &s, const item &item)
+{
+	s << static_cast<long long>(item.val);
+	return s;
+}
+
 //
 // item
 //
@@ -22,6 +29,10 @@ ircd::stats::item::NAME_MAX_LEN
 	127
 };
 
+//
+// item::item
+//
+
 ircd::stats::item::item(const json::members &opts)
 :feature_
 {