friend declaration declares a non-template function [duplicate]
It sounds like you want to change: friend ostream& operator << (ostream& out, const Base<T>& e); To: template<class T> friend ostream& operator << (ostream& out, const Base<T>& e);
templates
AngularJs (1.X) Include Partial Template
One way of including templates/html fragments from external files is to use the ng-include directive (doc). <ng-include src=”‘/path/to/the/header.html'”></ng-include> or <div ng-include src=”‘/path/to/the/header.html'”></div>
Is it possible to perform Includes with flask?
From: http://jinja.pocoo.org/docs/templates/#include template.html {% include ‘banner.html’ %} {% include ‘sidenavigation.html’ %} {% include ‘content.html’ %} {% include ‘footer.html’ %}
Declare variable in a Play2 scala template
@defining(“foo”) { title=> <div>@title</div> … } basically, you have to wrap the block in which you are going to use it
Automatically pick a variable type big enough to hold a specified number
Boost.Integer already has facilities for Integer Type Selection: boost::int_max_value_t<V>::least The smallest, built-in, signed integral type that can hold all the values in the inclusive range 0 – V. The parameter should be a positive number. boost::uint_value_t<V>::least The smallest, built-in, unsigned integral type that can hold all positive values up to and including V. The parameter … Read more
Template Metaprogramming – Difference Between Using Enum Hack and Static Const
Enums aren’t lvals, static member values are and if passed by reference the template will be instanciated: void f(const int&); f(TMPFib<1>::value); If you want to do pure compile time calculations etc. this is an undesired side-effect. The main historic difference is that enums also work for compilers where in-class-initialization of member values is not supported, … Read more
Can Mustache Templates do template extension?
I recently found myself in the same boat, except I came from a mako background. Mustache does not allow for template extension/inheritance but there are a few options available to you that I know of. You could use partials: {{>header}} Hello {{name}} {{>footer}} You could inject template pre-processing functions into the context for each template … Read more
Higher-kinded Types with C++
Template-template parameters? template <template <typename> class m> struct Monad { template <typename a> static m<a> mreturn(const a&); template <typename a, typename b> static m<b> mbind(const m<a>&, m<b>(*)(const a&)); }; template <typename a> struct Maybe { bool isNothing; a value; }; template <> struct Monad<Maybe> { template <typename a> static Maybe<a> mreturn(const a& v) { Maybe<a> … Read more
handlebars – is it possible to access parent context in a partial?
Just in case anyone stumbles across this question. This functionality exists now in Handlebars. Do this: {{#each items}} {{! Will pass the current item in items to your partial }} {{> item-template this}} {{/each}}
invalid use of incomplete type
The reason is that when instantiating a class template, all its declarations (not the definitions) of its member functions are instantiated too. The class template is instantiated precisely when the full definition of a specialization is required. That is the case when it is used as a base class for example, as in your case. … Read more