From ae6f3291c0e6a3f66250072d2ec648277cddfdda Mon Sep 17 00:00:00 2001
From: Vexu <git@vexu.eu>
Date: Wed, 11 Nov 2020 14:05:43 +0200
Subject: [PATCH] std: fix HashMap.clearRetainingCapacity

---
 lib/std/hash_map.zig | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/std/hash_map.zig b/lib/std/hash_map.zig
index 8454bf8fc6..08f3400d7f 100644
--- a/lib/std/hash_map.zig
+++ b/lib/std/hash_map.zig
@@ -428,7 +428,7 @@ pub fn HashMapUnmanaged(
             if (self.metadata) |_| {
                 self.initMetadatas();
                 self.size = 0;
-                self.available = 0;
+                self.available = @truncate(u32, (self.capacity() * MaxLoadPercentage) / 100);
             }
         }
 
@@ -864,6 +864,11 @@ test "std.hash_map clearRetainingCapacity" {
     expectEqual(map.get(1).?, 1);
     expectEqual(map.count(), 1);
 
+    map.clearRetainingCapacity();
+    map.putAssumeCapacity(1, 1);
+    expectEqual(map.get(1).?, 1);
+    expectEqual(map.count(), 1);
+
     const cap = map.capacity();
     expect(cap > 0);