Course Content
C++ Templates
C++ Templates
2. Templates Usage
3. Template Specialization
4. Class
Template aliases and variadic templates
Template Aliases
Template aliases, introduced in C++11, enable the creation of aliases for complex template types. They improve code readability by providing descriptive names for template instantiations.
- template
: This line declares a template parameter T that can be used within the alias declaration. using MyAlias = SomeComplexTemplate<T>;: This line creates an alias MyAlias for the template SomeComplexTemplate instantiated with type T.
Let's consider a scenario where we have a complex template type, which may involve a lot of template parameters and nested types. Instead of repeatedly typing out the complex type, we can create a template alias for it:
main
template <typename T> struct MyContainer { // Implementation details }; // Alias for MyContainer<int> using IntContainer = MyContainer<int>; int main() { IntContainer container; // Use IntContainer... }
Everything was clear?
Section 5. Chapter 3
