From 560abcb2014849f1db8a7c83a292943c045208c0 Mon Sep 17 00:00:00 2001
From: karl <karl.bittner@hexaquo.at>
Date: Mon, 15 Mar 2021 14:12:22 +0100
Subject: [PATCH] Add as_array

---
 Vector.h |  9 +++++++--
 test.cpp | 18 +++++++++++++-----
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/Vector.h b/Vector.h
index dddd414..c77460e 100644
--- a/Vector.h
+++ b/Vector.h
@@ -105,6 +105,10 @@ class Vector {
         }
     }
 
+    T *as_array() {
+        return data;
+    }
+
     // Returns the number of elements in the vector, regardless of the actually
     // reserved memory.
     unsigned int size() const {
@@ -132,7 +136,8 @@ class Vector {
 
     // Resize the size of the vector to the given new_size
     // If this decreases the size, some elements are deleted
-    // If this increases the size, some default-constructed elements are added
+    // If this increases the size, some default-constructed elements are added.
+    // If no default constructor is available, a padder must be passed.
     void resize(unsigned int new_size, const T &padder = T()) {
         int difference = new_size - size();
 
@@ -141,7 +146,7 @@ class Vector {
                 reallocate(new_size);
             }
 
-            // Add additional default-constructed items
+            // Add additional items
             for (int i = 0; i < difference; i++) {
                 new (data + element_count + i) T(padder);
             }
diff --git a/test.cpp b/test.cpp
index 57c1207..c95ad61 100644
--- a/test.cpp
+++ b/test.cpp
@@ -14,12 +14,20 @@ SCENARIO("Vector size and length are correct", "[vector]") {
 }
 
 SCENARIO("The bracket operator returns the correct element", "[vector]") {
-    Vector<int> v(20);
-    v.push_back(1);
-    v.push_back(2);
-    v.push_back(3);
+    GIVEN("A vector with some elements") {
+        Vector<int> v(20);
+        v.push_back(1);
+        v.push_back(2);
+        v.push_back(3);
 
-    REQUIRE(v[1] == 2);
+        THEN("The element in the middle must have the expected value") {
+            REQUIRE(v[1] == 2);
+        }
+
+        THEN("The same value must be accessible using as_array") {
+            REQUIRE(v.as_array()[1] == 2);
+        }
+    }
 }
 
 SCENARIO("Equality is returned correctly", "[vector]") {