[Update] Add multidimensional arrays

Author: SamuelMuloki

Arrays/main.cpp

@@ -10,9 +10,15 @@
 #include <iomanip>
 #include <array>
 
-void RangeBasedForStatement();
+const std::size_t rows{2};
+const std::size_t columns{3};
+void rangeBasedForStatement();
+void printArray(const std::array<std::array<int, columns>, rows>&);
 
 int main(int argc, const char * argv[]) {
+    std::array<std::array<int, columns>, rows> array1{1, 2, 3, 4, 5, 6};
+    std::array<std::array<int, columns>, rows> array2{1, 2, 3, 4, 5};
+
     // const variable can be used to delcare array size
     const std::size_t arraySize{5}; // must initialize in declaration
     std::array<int, arraySize> n{89, 378, 3, 45, 78}; // list initializer
@@ -27,12 +33,18 @@ int main(int argc, const char * argv[]) {
         std::cout << std::setw(7) << i << std::setw(10) << n[i] << std::endl;
     }
     std::cout << "The sum of all the elements in the array is " << total << std::endl;
-    RangeBasedForStatement();
+    rangeBasedForStatement();
+
+    std::cout << "Values in array1 by row are: "<< std::endl;
+    printArray(array1);
+
+    std::cout << "\nValues in array2 by row are: "<< std::endl;
+    printArray(array2);
     return 0;
 }
 
 // this function demonstrates a range-based for statement
-void RangeBasedForStatement() {
+void rangeBasedForStatement() {
     std::array<int, 5> items{1, 2, 3, 4, 5};
 
     // display items before modification
@@ -54,3 +66,16 @@ void RangeBasedForStatement() {
 
     std::cout << std::endl;
 }
+
+// multidimensional Arrays
+// Output array with two rows and three columns
+void printArray(const std::array<std::array<int, columns>, rows>& a) {
+    // loop through the array rows
+    for (auto const& row : a) {
+        // loop through the elements of the current row
+        for (auto const& element : row) { // auto tells the compiler to infer (determine) a variables data type based on the variables initializer value
+            std::cout << element << " ";
+        }
+        std::cout << std::endl; // start a new line output
+    }
+}

Line23.xcodeproj/project.xcworkspace/xcuserdata/samuelmuloki.xcuserdatad/UserInterfaceState.xcuserstate

@@ -7,22 +7,22 @@
 		<key>Arrays.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>12</integer>
+			<integer>13</integer>
 		</dict>
 		<key>Classes.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>8</integer>
+			<integer>6</integer>
 		</dict>
 		<key>ControlFlow.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>7</integer>
+			<integer>8</integer>
 		</dict>
 		<key>CounterControlled.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>9</integer>
+			<integer>10</integer>
 		</dict>
 		<key>GradeBook.xcscheme_^#shared#^_</key>
 		<dict>
@@ -32,52 +32,52 @@
 		<key>Line23.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>0</integer>
+			<integer>1</integer>
 		</dict>
 		<key>MathLibraryFunctions.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>10</integer>
+			<integer>11</integer>
 		</dict>
 		<key>PassByReference.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>11</integer>
+			<integer>9</integer>
 		</dict>
 		<key>calc.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>1</integer>
+			<integer>0</integer>
 		</dict>
 		<key>evenOdd.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>2</integer>
+			<integer>3</integer>
 		</dict>
 		<key>factorial.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>6</integer>
+			<integer>7</integer>
 		</dict>
 		<key>functionTemplates.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>13</integer>
+			<integer>12</integer>
 		</dict>
 		<key>perfectNumbers.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>4</integer>
+			<integer>5</integer>
 		</dict>
 		<key>primeNumbers.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>5</integer>
+			<integer>2</integer>
 		</dict>
 		<key>swap.xcscheme_^#shared#^_</key>
 		<dict>
 			<key>orderHint</key>
-			<integer>3</integer>
+			<integer>4</integer>
 		</dict>
 	</dict>
 	<key>SuppressBuildableAutocreation</key>