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2. c++ - How to use extern template - Stack Overflow

   stackoverflow.com/questions/6870885

   That is, without the extern. To me, these two things say that extern template prevents implicit instantiation, but it does not prevent explicit instantiation. So if you do this: extern template std::vector<int>; template std::vector<int>; The second line effectively negates the first by explicitly doing what the first line prevented from ...

3. using extern template (C++11) to avoid instantiation

   stackoverflow.com/questions/8130602

   There is no way to prevent this in C++03, so C++11 introduced extern template declarations, analogous to extern data declarations. C++03 has this syntax to oblige the compiler to instantiate a template: template class std::vector<MyClass>; C++11 now provides this syntax: extern template class std::vector<MyClass>; which tells the compiler not ...

4. c - Difference between extern int a; extern int a=42 ... - Stack...

   stackoverflow.com/questions/7610321

   extern int a; is a declaration. It does not allocate space for storing a. extern int a = 42; is a definition. It allocates space to store the int value a and assigns it the value 42. here the variables are declared inside the main () function where its definition was defined outside in the global declaration section.

5. c - Scope and lifetime of a variable - Stack Overflow

   stackoverflow.com/questions/11447964

   It depends. Scope represents the blocks of code from which the variable can be accessed, lifetime represents the period from creation to destruction. What is the scope and lifetime of a variable declared within a block inside a function? In this case, they coincide: {. int x; // begin scope and lifetime.

6. c# - Swagger not loading - Failed to load API definition: Fetch...

   stackoverflow.com/questions/56859604

   Public methods without the rest attribute (Get, Post, etc.) First, take a look the link below just to check if your setup is ok: Add Swagger (OpenAPI) API Documentation in ASP.NET Core 3.1. Then, A good tip to find out the problem is to run the application without to use IISExpress and check the console log.

7. Understanding The Modulus Operator % - Stack Overflow

   stackoverflow.com/questions/17524673

   Definition. The Modulus is the remainder of the euclidean division of one number by another. % is called the modulo operation. For instance, 9 divided by 4 equals 2 but it remains 1. Here, 9 / 4 = 2 and 9 % 4 = 1. In your example: 5 divided by 7 gives 0 but it remains 5 (5 % 7 == 5). Calculation.

8. What properties does @Column columnDefinition make redundant?

   stackoverflow.com/questions/16078681

   In JPA Spec & javadoc: columnDefinition definition: The SQL fragment that is used when generating the DDL for the column. columnDefinition default: Generated SQL to create a column of the inferred type. The following examples are provided: @Column(name="DESC", columnDefinition="CLOB NOT NULL", table="EMP_DETAIL") @Column(name="EMP_PIC ...

9. slice - How slicing in Python works - Stack Overflow

   stackoverflow.com/questions/509211

   Here is the logical equivalent code in Python. This function takes a Python object and optional parameters for slicing and returns the start, stop, step, and slice length for the requested slice. def py_slice_get_indices_ex(obj, start=None, stop=None, step=None): length = len(obj) if step is None: step = 1.

10. What is a NullPointerException, and how do I fix it?

    stackoverflow.com/questions/218384/what

    The NullPointerException (NPE) typically occurs when you declare a variable but did not create an object and assign it to the variable before trying to use the contents of the variable. So you have a reference to something that does not actually exist. Take the following code: Integer num; num = new Integer(10);

11. What is the difference between "INNER JOIN" and "OUTER JOIN"?

    stackoverflow.com/questions/38549

    An inner join retrieve the matched rows only. Whereas an outer join retrieve the matched rows from one table and all rows in other table ....the result depends on which one you are using: Left: Matched rows in the right table and all rows in the left table.