2.x Quiz

dot vscode/tasks.json

@@ -9,7 +9,7 @@
                 "-ggdb",
                 "-std=c++20",
                 "-pedantic-errors",
-                "${file}",
+                "${fileDirname}/**.cpp",
                 "-o",
                 "${fileDirname}\\build\\${fileBasenameNoExtension}.exe"
             ],
@@ -30,7 +30,7 @@
                 "-DNDEBUG",
                 "-std=c++20",
                 "-pedantic-errors",
-                "${file}",
+                "${fileDirname}/**.cpp",
                 "-o",
                 "${fileDirname}\\build\\${fileBasenameNoExtension}.exe"
             ],

io.cpp

@@ -0,0 +1,14 @@
+#include "io.h"
+#include <iostream>
+
+int readNumber()
+{
+    std::cout << "Enter a number to add: ";
+    int x{};
+    std::cin >> x;
+    return x;
+}
+void writeAnswer(int x)
+{
+    std::cout << "The answer is: " << x << "\n";
+}

io.h

@@ -0,0 +1,4 @@
+#pragma once
+
+int readNumber();
+void writeAnswer(int x);

main.cpp

@@ -1,17 +1,11 @@
 #include <iostream> // for std::cout
-
+#include "io.h"
-// Definition of user-defined function doPrint()
-void doPrint() // doPrint() is the called function in this example
-{
-    std::cout << "In doPrint()\n";
-}
 
 // Definition of function main()
 int main()
 {
-    std::cout << "Starting main()\n";
+    int a{readNumber()};
-    doPrint();                      // Interrupt main() by making a function call to doPrint().  main() is the caller.
+    int b{readNumber()};
-    std::cout << "Ending main()\n"; // this statement is executed after doPrint() ends
+    writeAnswer(a + b);
-
     return 0;
 }