Summary of basic knowledge of C + + template skills

1. If you want to access a type name that relies on template parameters, you should add the keyword typename before the type name.

2. Nested classes and member functions can also be templates.

3. The template version of the assignment operator does not replace the default assignment operator.

4, class template can also be used as template parameters, we call template template parameters.

5. Template arguments for templates must match exactly. Default template arguments for template arguments for templates are not considered when matching (such as std::d eque Allocator)

6. By displaying the call to the default constructor, you can ensure that the variables and members of the template are initialized with a default value, which also applies to variables and members of the built-in type.

7. For string, the type conversion (called decay) of the array to pointer (Array-to-pointer) occurs when and only if the parameter is not consumed in the actual argument deduction process.

Summary of basic knowledge of C + + template skills