Category "templates"

How to get the value of a template class?

I'm trying to get the value of a template class. To get the value of a class, I can easily do like: int get_value() { return *this; } But I want to create

if itemcontainerstyle is inside DataTemplate and a call the the main window is used an System.NullReferenceExc on start-up but works fine if ignored

when i try to call a event from the main wind if a control is in a template in itemcontainerstyle when the run a System.NullReferenceException: 'Object referenc

Sendgrid handlebar template array length

I'm trying to fetch length of an array but it seems length only exists for conditionals. Data: { "array": ["a", "b", "c"] } in sendgrid template: {{array.l

Question about the declaration about the aliasing constructor for `std::shared_ptr`

I think the 8th constructor of the std::shared_ptr<T> should be decalared as template< class T, class Y > shared_ptr<T>( const shared_ptr<Y

Create jinja template from dictionary in ansible

how can I access stdout and item values in a dictionary? My inventory file: all: hosts: server1: dict: custom_mountpoints: - /srv/

Is there any way to control optimization of a template function in visual studio c++ 2017

I tried using #pragma optimize("", off) to selectively disable optimizations for the a() function. This does not work. Is there any way to control optimization

How to include images in xhtml2pdf generated pdf files?

I am running a streamlit app which generates reports containing images and dataframes. I have used jinja2 to generate the html file from a template. Then, I wou

Template of multiple abstract classes

There are many questions about template specialization with abstract classes, still I couldn't find something that helped me solve my problem. First of all, let

Returning a struct pointer from class method

EDIT: Changed example code to code from my project that doesn't work. I'm writing code in C++, learning templates and got stuck with some problem. There's a cla

Template partial ordering - why does partial deduction succeed here

Consider the following simple (to the extent that template questions ever are) example: #include <iostream> template <typename T> struct identity;

best practices in structuring jinja templates (flask)

I wrote a site in bootstrap and thinking about refactoring it in jinja. I am not much familiar with nesting blocks, and the site is relatively simple. My goal i

C++ : How to create a copy constructor of array that has a pointer?

I have template <class T> class arrList: public linearList<T> { public: arrList() {} arrList(const arrList<T>& List); ~

Unable to get the value from the drop down from html to python program in flask

I fetch the data from Mysql and populate the values to my html form in a drop down menu.Once the user selects the option, the value which gets sent back is only

Use templates to implement a subset of multiple virtual methods of a templated class

I am working on incorporating a new implementation based on an older, fixed API and moving in somewhat contradicting terrain because I need to pair a templated

C++ unpack variadic template arguments with the next function returns nothing [duplicate]

I'm trying to expand arguments to a variadic function. Code below works perfectly fine template<typename T> int printMy (const T& f)

Emulating Polymorphism without virtual pointers/overhead

Before reading I must emphasise I have demanding performance requirements (not premature optimization- processing millions of messages and need to design with p

Why does an optional argument in a template constructor for enable_if help the compiler to deduce the template parameter? [duplicate]

The minimal example is rather short: #include <iostream> #include <array> #include <type_traits> struct Foo{ //template

Covariant return type on Eigen Matrix for base class method

Suppose that I have two different solvers that both will be called at run time. I want to call solvers' api and get resulted Eigen matrix through the base class

couldn't find file 'owl.theme.default' with type 'text/css' error in rails 5.1.4

im getting the below error. Sprockets::FileNotFound at / couldn't find file 'owl.theme.default' with type 'text/css' Checked in these paths: /home/xyz/abc/pr

How to create a "factory function" for a templated class?

How would someone go about implementing a factory function for a templated class? Either my google searches aren't looking for the right thing, or I am misunde