Restore std::endl in examples

\n is still used when std::endl doesn't make sense, like when using
std::cerr, since it is unbuffered.

examples/http_client.cc

@@ -14,7 +14,7 @@ using namespace Pistache;
 
 int main(int argc, char *argv[]) {
   if (argc < 2) {
-    std::cerr << "Usage: http_client page [count]" << '\n';
+    std::cerr << "Usage: http_client page [count]\n";
     return 1;
   }
 
@@ -41,10 +41,10 @@ int main(int argc, char *argv[]) {
     resp.then(
         [&](Http::Response response) {
           ++completedRequests;
-          std::cout << "Response code = " << response.code() << '\n';
+          std::cout << "Response code = " << response.code() << std::endl;
           auto body = response.body();
           if (!body.empty())
-            std::cout << "Response body = " << body << '\n';
+            std::cout << "Response body = " << body << std::endl;
         },
         [&](std::exception_ptr exc) {
           ++failedRequests;
@@ -69,7 +69,7 @@ int main(int argc, char *argv[]) {
             << std::chrono::duration_cast<std::chrono::milliseconds>(end -
                                                                      start)
                    .count()
-            << "ms\n";
+            << "ms" << std::endl;
 
   client.shutdown();
 }

examples/http_server.cc

@@ -57,9 +57,9 @@ private:
                 if (global > 100) global = 100;
 
                 if (global > 1)
-                    std::cout << "Global load is " << global << "%\n";
+                    std::cout << "Global load is " << global << "%" << std::endl;
                 else
-                    std::cout << "Global load is 0%\n";
+                    std::cout << "Global load is 0%" << std::endl;
             },
             Async::NoExcept);
 
@@ -84,7 +84,7 @@ class MyHandler : public Http::Handler {
 
                 auto query = req.query();
                 if (query.has("chunked")) {
-                    std::cout << "Using chunked encoding\n";
+                    std::cout << "Using chunked encoding" << std::endl;
 
                     response.headers()
                         .add<Header::Server>("pistache/0.1")
@@ -130,7 +130,7 @@ class MyHandler : public Http::Handler {
         else if (req.resource() == "/static") {
             if (req.method() == Http::Method::Get) {
                 Http::serveFile(response, "README.md").then([](ssize_t bytes) {
-                    std::cout << "Sent " << bytes << " bytes\n";
+                    std::cout << "Sent " << bytes << " bytes" << std::endl;
                 }, Async::NoExcept);
             }
         } else {
@@ -164,8 +164,8 @@ int main(int argc, char *argv[]) {
 
     Address addr(Ipv4::any(), port);
 
-    std::cout << "Cores = " << hardware_concurrency() << '\n';
-    std::cout << "Using " << thr << " threads\n";
+    std::cout << "Cores = " << hardware_concurrency() << std::endl;
+    std::cout << "Using " << thr << " threads" << std::endl;
 
     auto server = std::make_shared<Http::Endpoint>(addr);
 

examples/http_server_shutdown.cc

@@ -38,11 +38,11 @@ int main() {
     int status = sigwait(&signals, &signal);
     if (status == 0)
     {
-        std::cout << "received signal " << signal << '\n';
+        std::cout << "received signal " << signal << std::endl;
     }
     else
     {
-        std::cerr << "sigwait returns " << status << '\n';
+        std::cerr << "sigwait returns " << status << std::endl;
     }
 
     server.shutdown();

examples/rest_description.cc

@@ -144,8 +144,8 @@ int main(int argc, char *argv[]) {
 
     Address addr(Ipv4::any(), port);
 
-    std::cout << "Cores = " << hardware_concurrency() << '\n';
-    std::cout << "Using " << thr << " threads" << '\n';
+    std::cout << "Cores = " << hardware_concurrency() << std::endl;
+    std::cout << "Using " << thr << " threads" << std::endl;
 
     BankerService banker(addr);
 

examples/rest_server.cc

@@ -14,12 +14,12 @@ using namespace Pistache;
 
 void printCookies(const Http::Request& req) {
     auto cookies = req.cookies();
-    std::cout << "Cookies: [\n";
+    std::cout << "Cookies: [" << std::endl;
     const std::string indent(4, ' ');
     for (const auto& c: cookies) {
-        std::cout << indent << c.name << " = " << c.value << '\n';
+        std::cout << indent << c.name << " = " << c.value << std::endl;
     }
-    std::cout << "]\n";
+    std::cout << "]" << std::endl;
 }
 
 namespace Generic {
@@ -157,8 +157,8 @@ int main(int argc, char *argv[]) {
 
     Address addr(Ipv4::any(), port);
 
-    std::cout << "Cores = " << hardware_concurrency() << '\n';
-    std::cout << "Using " << thr << " threads" << '\n';
+    std::cout << "Cores = " << hardware_concurrency() << std::endl;
+    std::cout << "Using " << thr << " threads" << std::endl;
 
     StatsEndpoint stats(addr);