From 8807a9228c66bf3558b3c5bf56b1d6476765a8a0 Mon Sep 17 00:00:00 2001
From: studiosi <david@studiosi.es>
Date: Mon, 17 Aug 2026 21:35:13 +0300
Subject: [PATCH] Solved: 32 - Constexpr and Nullptr

---
 modules/09_cpp11/src/constexpr_nullptr.cpp | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/modules/09_cpp11/src/constexpr_nullptr.cpp b/modules/09_cpp11/src/constexpr_nullptr.cpp
index 445a404..f2a0c79 100644
--- a/modules/09_cpp11/src/constexpr_nullptr.cpp
+++ b/modules/09_cpp11/src/constexpr_nullptr.cpp
@@ -2,7 +2,7 @@
 
 namespace cpp11 {
 
-auto to_index(Color color) -> int {
+auto to_index(const Color color) -> int {
     switch (color) {
         case Color::Red: return 0;
         case Color::Green: return 1;
@@ -11,14 +11,12 @@ auto to_index(Color color) -> int {
     return -1;
 }
 
-auto square(int value) -> int {
-    (void)value;
-    return 0;
+auto square(const int value) -> int {
+    return value * value;
 }
 
 auto find_null(int* ptr) -> int* {
-    (void)ptr;
-    return nullptr;
+    return ptr;
 }
 
 }  // namespace cpp11