c++

Author: hnasr

.DS_Store

@@ -0,0 +1,13 @@
+{
+    "configurations": [
+        {
+            "name": "Mac",
+            "includePath": [
+                "${workspaceFolder}/**"
+            ],
+            "defines": [],
+            "macFrameworkPath": []
+        }
+    ],
+    "version": 4
+}

.vscode/c_cpp_properties.json

@@ -11,7 +11,7 @@
             "skipFiles": [
                 "<node_internals>/**"
             ],
-            "program": "${workspaceFolder}/15-http/150-raw-request.js"
+            "program": "${workspaceFolder}/27-request-showdown/270-request-http.js"
         }
     ]
 }

.vscode/launch.json

@@ -0,0 +1,38 @@
+#include <napi.h> //import the napi header 
+
+// Function to check if a number is prime 
+//native simple c++ (Node can't see this yet)
+bool IsPrime(int number) {
+  if (number <= 1) return false;
+  for (int i = 2; i * i <= number; ++i) {
+    if (number % i == 0) return false;
+  }
+  return true;
+}
+
+// N-API wrapper function 
+//need to wrap it so node can see it and call it 
+//and yes we need a special call back so we can call JS back
+Napi::Boolean IsPrimeWrapped(const Napi::CallbackInfo& info) {
+  Napi::Env env = info.Env();
+
+  // Ensure there is one argument and it is a number
+  if (info.Length() < 1 || !info[0].IsNumber()) {
+    Napi::TypeError::New(env, "Number expected").ThrowAsJavaScriptException();
+    return Napi::Boolean::New(env, false);
+  }
+
+  int number = info[0].As<Napi::Number>().Int32Value();
+  bool result = IsPrime(number);
+
+  return Napi::Boolean::New(env, result);
+}
+
+// Initialize the module and export functions
+Napi::Object Init(Napi::Env env, Napi::Object exports) {
+  exports.Set(Napi::String::New(env, "isPrime"),
+              Napi::Function::New(env, IsPrimeWrapped));
+  return exports;
+}
+
+NODE_API_MODULE(prime_checker, Init)

28-isprime.cpp/280-cppaddon-prime.cpp

@@ -0,0 +1,8 @@
+{
+  "targets": [
+    {
+      "target_name": "prime_checker",
+      "sources": ["280-cppaddon-prime.cpp"]
+    }
+  ]
+}