Fixed: Suspected possibility of very rare stall in Input::clear()

aristocratos · Dec 11, 2021 · 13a29c3 · 13a29c3
1 parent 609dfcc
commit 13a29c3
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/src/btop_input.cpp b/src/btop_input.cpp
@@ -175,10 +175,11 @@ namespace Input {
 	}
 
 	void clear() {
-		auto first_num = cin.rdbuf()->in_avail();
-		while (cin.rdbuf()->in_avail() == first_num) {
-			if (first_num-- == 0) break;
-			cin.ignore(1);
+		if (auto first_num = cin.rdbuf()->in_avail(); first_num > 0) {
+			while (cin.rdbuf()->in_avail() == first_num) {
+				if (first_num-- <= 0) break;
+				cin.ignore(1);
+			}
 		}
 	}