+ declare_flag(name, description, value, std::function<void(const T&)>([&value, callback](const T& val) {
+ callback(val);
+ value = std::move(val);
+ }));
+}
+
+template <class T, class F>
+typename std::enable_if<std::is_same<void, decltype(std::declval<F>()(std::declval<const T&>()))>::value, void>::type
+bind_flag(T& value, const char* name, std::initializer_list<const char*> aliases, const char* description, F callback)
+{
+ bind_flag(value, name, description, std::move(callback));
+ alias(name, std::move(aliases));
+}
+
+template <class T, class F>
+typename std::enable_if<std::is_same<void, decltype(std::declval<F>()(std::declval<const T&>()))>::value, void>::type
+bind_flag(T& value, const char* name, const char* description, std::map<T, std::string> valid_values, F callback)
+{
+ declare_flag(name, description, value,
+ std::function<void(const T&)>([&value, name, valid_values, callback](const T& val) {
+ callback(val);
+ bool found = false;
+ for (auto kv : valid_values) {
+ if (kv.first == val)
+ found = true;
+ }
+ if (not found || std::string(val) == "help") {
+ std::string mesg = std::string("\n");
+ if (std::string(val) == "help")
+ mesg += std::string("Possible values for option ") + name + ":\n";
+ else
+ mesg += std::string("Invalid value '") + val + "' for option " + name + ". Possible values:\n";
+ for (auto kv : valid_values)
+ mesg += " - '" + std::string(kv.first) + "': " + kv.second +
+ (kv.first == value ? " <=== DEFAULT" : "") + "\n";
+ xbt_die("%s", mesg.c_str());
+ }
+ value = std::move(val);
+ }));
+}
+template <class T, class F>
+typename std::enable_if<std::is_same<void, decltype(std::declval<F>()(std::declval<const T&>()))>::value, void>::type
+bind_flag(T& value, const char* name, std::initializer_list<const char*> aliases, const char* description,
+ std::map<T, std::string> valid_values, F callback)
+{
+ bind_flag(value, name, description, std::move(valid_values), std::move(callback));
+ alias(name, std::move(aliases));