Re: Anonymous functions: replace bind with lambdas

[Richard Heck]

Some explanatory comments in this stuff would help, too. These complex 
constructions are nice in reducing code, but they are hard for novices 
to read without help.

rh


On 06/26/2016 03:20 PM, Guillaume Munch wrote:
+namespace {
+
+template<typename F>
+typename std::result_of<F()>::type call(F f) {
+#if EXPORT_in_THREAD
+       return call_in_gui_thread(f);
+#else
+       return f();
+#endif
+}
+
+} // anon namespace
+
+
  void noAppDialog(QString const & title, QString const & msg, 
QMessageBox::Icon mode)
  {
        int argc = 1;
@@ -136,13 +150,10 @@ int prompt(docstring const & title0, docstring const & 
question,
                  docstring const & b1, docstring const & b2,
                  docstring const & b3, docstring const & b4)
  {
-#ifdef EXPORT_in_THREAD
-       return InGuiThread<int>().call(&doPrompt,
-#else
-       return doPrompt(
-#endif
-                               title0, question, default_button,
-                               cancel_button, b1, b2, b3, b4);
+       return call([&, default_button, cancel_button] () {
+                       return doPrompt(title0, question, default_button,
+                                       cancel_button, b1, b2, b3, b4);
+               });
  }