From 7e81a238e04a7d3e07755535208321b8d2b87918 Mon Sep 17 00:00:00 2001
From: hsutter <herb.sutter@gmail.com>
Date: Wed, 2 Dec 2015 12:36:23 -0800
Subject: [PATCH] Updated Bounds.4 as suggested in issue #267

---
 CppCoreGuidelines.md | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/CppCoreGuidelines.md b/CppCoreGuidelines.md
index df0d85c..915dfbc 100644
--- a/CppCoreGuidelines.md
+++ b/CppCoreGuidelines.md
@@ -12692,17 +12692,23 @@ These functions all have bounds-safe overloads that take `span`. Standard types
     void f()
     {
         array<int, 10> a, b;
-        memset(a.data(), 0, 10); 		// BAD, and contains a length error
-        memcmp(a.data(), b.data(), 10); // BAD, and contains a length error
+        memset(a.data(), 0, 10); 		// BAD, and contains a length error (length = 10 * sizeof(int))
+        memcmp(a.data(), b.data(), 10); // BAD, and contains a length error (length = 10 * sizeof(int))
     }
 
+Also, `std::array<>::fill()` or `std::fill()` or even an empty initializer are better candidate than `memset()`.
+
 ##### Example, good
 
     void f()
     {
-        array<int, 10> a, b;
-        memset(a, 0); 	// OK
-        memcmp({a, b}); 	// OK
+        array<int, 10> a, b, c{};       // c is initialized to zero
+        a.fill(0);
+        fill(b.begin(), b.end(), 0);    // std::fill()
+        fill(b, 0);                     // std::fill() + Ranges TS
+
+        if ( a == b ) {
+        }
     }
 
 ##### Example