From 8556caf3603eb2719830f37bc9386fcec2f21a0b Mon Sep 17 00:00:00 2001
From: Andrew Noyes <andrew@weaselab.dev>
Date: Fri, 15 Mar 2024 16:57:16 -0700
Subject: [PATCH] Cachegrind says memset uses fewer instructions here

---
 ConflictSet.cpp | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/ConflictSet.cpp b/ConflictSet.cpp
index 5358115..6da19a9 100644
--- a/ConflictSet.cpp
+++ b/ConflictSet.cpp
@@ -447,9 +447,7 @@ inline void Node48::copyChildrenAndKeyFrom(const Node256 &other) {
 inline void Node256::copyChildrenAndKeyFrom(const Node48 &other) {
   memcpy((char *)this + kNodeCopyBegin, (char *)&other + kNodeCopyBegin,
          kNodeCopySize);
-  for (int i = 0; i < 256; ++i) {
-    children[i].child = nullptr;
-  }
+  memset(children, 0, sizeof(children));
   bitSet = other.bitSet;
   bitSet.forEachInRange(
       [&](int c) {
@@ -464,9 +462,7 @@ inline void Node256::copyChildrenAndKeyFrom(const Node48 &other) {
 inline void Node256::copyChildrenAndKeyFrom(const Node256 &other) {
   memcpy((char *)this + kNodeCopyBegin, (char *)&other + kNodeCopyBegin,
          kNodeCopySize);
-  for (int i = 0; i < 256; ++i) {
-    children[i].child = nullptr;
-  }
+  memset(children, 0, sizeof(children));
   bitSet = other.bitSet;
   bitSet.forEachInRange(
       [&](int c) {