From f26a23b409339e4cfee0074cdb44f5b01a12e8da Mon Sep 17 00:00:00 2001
From: wangjiacai <jiacai_wang@qq.com>
Date: Sun, 12 Feb 2023 14:59:21 +0800
Subject: [PATCH] test how random/sorted dataset affect speed.

---
 misc/likely.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/misc/likely.cpp b/misc/likely.cpp
index cee5c17..a0efa55 100644
--- a/misc/likely.cpp
+++ b/misc/likely.cpp
@@ -1,3 +1,4 @@
+#include <algorithm>
 #include <iostream>
 #include <sys/time.h>
 
@@ -84,8 +85,15 @@ int main()
     srand(time(nullptr));
     for (int i = 0; i < SIZE; i++)
     {
-        arr[i] = (rand() % (RANGE + 1)) + 0.499 * RANGE;
+        arr[i] = (rand() % (RANGE + 1));
     }
+    cout << "random dataset:" << endl;
+    func1(arr);
+    func2(arr);
+    func_likely(arr);
+    func_unlikely(arr);
+    sort(arr, arr + SIZE);
+    cout << "sorted dataset:" << endl;
     func1(arr);
     func2(arr);
     func_likely(arr);