E
Size: a a a
E
W
W
E
E
W
E
E
W
W
E
W
E
E
W
tl::expected<value_type, error_type>;
И потом auto maybe_value = some_fun();
if(not maybe_value.has_value()){
logger->log(" :( {} ", maybe_value.error().message());
}
some_stuff(maybe_value.value());
W
E
W
E
E