You can’t pass a lambda function object as an argument of type std::function<T> without explicitly specifying the template argument T. Template type deduction tries to match the type of your lambda function to the std::function<T> which it just can’t do in this case – these types are not the same. Template type deduction doesn’t consider … Read more
The issue with using the DataTrigger/Binding solution mentioned above are two-fold. The first is you actually end up with a binding warning that you can’t find the relative source for the selected item. The bigger issue however is that you’ve cluttered up your data templates and made them specific to a ComboBox. The solution I … Read more
What do you like to use as work around ? Container objects or Macros ? Do you feel its worth it ? The canonical way is to use a metafunction like thus: template <typename T> struct my_string_map { typedef std::map<std::string, T> type; }; // Invoke: my_string_map<int>::type my_str_int_map; This is also used in the STL (allocator::rebind<U>) … Read more
Well… yes, template metaprogramming lacks side effects as it is intended. I was misled by a bug in older versions of GCC and a little unclear wording in the Standard to believe that all those features were possible. However, at least the namespace-scope functionality can be achieved with little use of templates at all. Function … Read more
Views within other views are called Nested views. There are two ways of including nested views in CodeIgniter: 1. Load a nested view inside the controller Load the view in advance and pass to the other view. First put this in the controller: <?php // the “TRUE” argument tells it to return the content, rather … Read more
And other than the pi example, how would it work with non-const variables? Currently, it seems to instantiate the variables separately for the type. i.e., you could assign 10 to n<int> and it would be different from the template definition. template<typename T> T n = T(5); int main() { n<int> = 10; std::cout << n<int> … Read more
One of the new features in C++20 is Down with typename. In C++17, you had to provide the typename keyword in nearly all†dependent contexts to disambiguate a type from a value. But in C++20, this rule is relaxed a lot. In all contexts where you need to have a type, the typename keyword is … Read more
Here is another solution: https://github.com/ithkuil/angular-on-server wiki for details Update from author of that repo: that was about 6 years ago (at the time of this edit). At this point, people should probably be using https://angular.io/guide/universal or just https://prerender.io/
What has been most useful for me: Build on a RAM filesystem. This is trivial on Linux. You may want to keep a copy of common header files (precompiled or the actual .h files) on the RAM filesystem as well. Precompiled headers. I have one per (major) library (e.g. Boost, Qt, stdlib). Declare instead of … Read more
As long as the apps are in INSTALLED_APPS and the template loader for apps dirs is enabled, you can include any template from another app, i.e.: {% include “header.html” %} … since your templates are located directly in the templates dir of your app. Generally, in order to avoid name clashes it is better to … Read more