修复编译错误.

cyanray · cyanray · commit 04d7447cac2c · 2021-09-24T11:51:12.000+08:00
diff --git a/include/mirai/events/BotJoinGroupEvent.hpp b/include/mirai/events/BotJoinGroupEvent.hpp
@@ -7,7 +7,7 @@
 #include "event_interface.hpp"
 #include "mirai/defs/group.hpp"
 #include "mirai/defs/group_member.hpp"
-std::optional;
+using std::optional;
 
 namespace Cyan
 {

Original file line number	Diff line number	Diff line change
`@@ -7,7 +7,7 @@`
`7`	`7`	`#include "event_interface.hpp"`
`8`	`8`	`#include "mirai/defs/group.hpp"`
`9`	`9`	`#include "mirai/defs/group_member.hpp"`
`10`		`-std::optional;`
	`10`	`+using std::optional;`
`11`	`11`
`12`	`12`	`namespace Cyan`
`13`	`13`	`{`