## CppCon 2020 Template Metaprogramming: Type Traits Part 1 Jody Hagins jhagins@maystreet.com coachhagins@gmail.com ## CppCon 2020 Template Metaprogramming: Type Traits Introduction ## I ntended Audience oriented: shallow depth, slow current - Not necessarily beginner to C++, but beginner to traditional template metaprogramming techniques ## I ntended Audience • Beginner/Intermediate • Gentle entry: swimming oriented: shallow depth, slow current - Not necessarily beginner to C++, but beginner to traditional template metaprogramming techniques • Type traits part of standard library for ~10 years ## I ntended Audience

## Template-Less MetaProgramming 0 ## +24 ## KRIS JUSIAK 2024 September 15 - 20 ## Template Metaprogramming (TMP) template using meta_fun = this_talk; ## static_assert(Template::Metaprogramming::is_hard); // ✓ ?static_assert(Template::Metaprogramming::is_hard); // ✓ ?static_assert(Template::Metaprogramming::is_powerful); // ✓ ?static_assert(Template::Metapr // ✓ ?static_assert(Template::Metaprogramming::is_powerful); // ✓ ?static_assert(( Template::Metaprogramming::is_easy and Template::Metaprogramming::is_powerful and Template::Metaprogramming::has

## V ariadic templates: Parameter pack ## ■ Syntax: A typename|class... Ts generates a type template parameter pack with optional name. B Args... ts a function argument parameter pack with optional D ts... in the body of a function to unpack the arguments. 1 templatetemplate="" 4="" constexpr="" auto="" 5="" min(const="" t&="" a,="" const="" std::string(t); } 5 Catch all others and apply to_string 6 template auto Normalize(const T& t) { return std::to_string(t); } 7 template auto _StrCat(std::string&

• Write views that actually do something • Raising a 404 error • Use the template system • Removing hardcoded URLs in templates • Namespacing URL names classes Working with form templates Further topics Templates - The Django template language - Support for template engines Class-based views - Introduction to class-based views - Built-in Django's cache framework - Setting up the cache - The per-site cache - The per-view cache - Template fragment caching - The low-level cache API - Asynchronous support - Downstream caches - Using

New host 126 3 New item 128 4 New trigger 129 5 Receiving problem notification 131 6 New template 135 6 Zabbix appliance 137 7 Configuration 140 1 Hosts and host groups 149 2 Items 159 4 Events 347 5 Event correlation 350 6 Tagging 357 7 Visualization 360 8 Templates and template groups 387 9 Templates out of the box 388 10 Notifications upon events 397 11 Macros 442 Problem acknowledgment 544 1 Problem suppression 546 14 Configuration export/import 547 1 Template groups 549 2 Host groups 549 3 Templates 549 4 Hosts 569 5 Network maps 587 6 Media types

packages 69 5 Installation from containers 87 6 Upgrade procedure 93 7 Known issues 102 8 Template changes 104 9 Upgrade notes for 4.4.0 105 10 Upgrade notes for 4.4.1 106 11 Upgrade notes 112 3 New item 113 4 New trigger 116 5 Receiving problem notification 118 6 New template 122 6. Zabbix appliance 124 7. Configuration 127 1 Hosts and host groups 133 templates come in three flavours: • Template OS Linux by Zabbix agent, Template OS Linux by Zabbix agent active - Linux monitored via Zabbix agent (modular) - depend on Template Module Zabbix agent, which should

josuttis.com 3 josuttis | eckstein IT communication ## Generic Function to Insert a Value C++98 template void add(CollT& coll, const T& val) { coll.push_back(val); me> Overloading Function Templates template void add(CollT& coll, const T& val) { coll.push_back(val); } template communication Constraints with Concepts C++20 template concept HasPushBack = requires (CollT c, CollT::value_type v) { c.push_back(v); }; template requires

from packages 58 4 Installation from sources 60 5 Upgrade procedure 68 6 Known issues 69 7 Template changes 70 8 Upgrade notes for 2.2.0 71 9 Upgrade notes for 2.2.1 75 10 Upgrade notes for 3 New item ..... 85 4 New trigger ..... 87 5 Receiving problem notification ..... 88 6 New template ..... 91 5. Zabbix appliance ..... 93 6. Configuration ..... 97 1 Hosts and host groups . scenarios previously could not be template members so it used to be quite difficult to apply some scenario to multiple hosts. Starting with Zabbix 2.2.0 web scenarios can be template members in the same way as

a1ad2e19b/p1_1.jpg) ## Agenda OpenEdge Data Service Architecture JSDO DataSource ☐ Starter Template ■ Demo ■ Next Steps ## Progress $ ^{®} $ OpenEdge $ ^{®} $  ## Starter Template ☑ Create using: • tns create --template tns-template-master-detail-progress-ng ail-progress-ng ☑ Based on the NativeScript template-master-detail-ng ■ Provides CRUD support ☑ Optional login page with the following authentication models: • Anonymous Basic Form EXPLORER

Plugins Reference 25 2 Advanced 31 2.1 Internationalization 31 2.2 Sitemap Guide 33 2.3 Template Tags 33 2.4 Command Line Interface 39 3 Extending the CMS 41 3.1 Extending the CMS: Examples you now require to have the 'sekizai.context_processors.sekizai' context processor in your TEMPLATE_CONTEXT_PROCESSORS setting. All templates in CMS_Templates must contain at least the js and css rather has to be enabled explicitly using the {%cms_toolbar %} template tag from the cms_tags template tag library in your templates. The template tag should be placed somewhere within the body of the HTML