What are the generic subprograms?

A generic subprograms is a subprogram which have parametric polymorphism. A generic subprogram can accept different types of values of same single memory location. Parametrically polymorphic subprograms are often called generic subprograms. C++ provide a kind of compile-time parametric polymorphism.

What is a generic subprogram explain with example?

Generics is the idea to allow type (Integer, String, … etc and user-defined types) to be a parameter to methods, classes and interfaces. For example, classes like an array, map, etc, which can be used using generics very efficiently. We can use them for any type.

Why generic subprograms are used in programming?

Generic Subprogram Overloaded subprograms provide ad hoc polymorphism . A subprogram that takes a generic parameter that is used in a type expression that describes the type of the parameters of the subprogram provides parametric polymorphism .

What are the two categories of subprograms?

PL/SQL has two types of subprograms called procedures and functions. Generally, you use a procedure to perform an action and a function to compute a value. Like unnamed or anonymous PL/SQL blocks, subprograms have a declarative part, an executable part, and an optional exception-handling part.

What are the advantages of using subprograms?

There are several advantages to using subprograms:

They help keep the code simple, and, thus, more readable;
They allow the programmer to use the same code as many times as needed throughout the program;
They allow the programmer to define needed functions; and,
They can be used in other programs.

What is generic data type?

Generics mean parameterized types. The idea is to allow type (Integer, String, … etc, and user-defined types) to be a parameter to methods, classes, and interfaces. Using Generics, it is possible to create classes that work with different data types.

What are the design issues for subprograms?

Some of the design issues of subprogram are: Are local variables static or dynamic? Can subprogram definitions appear in other subprogram definitions? What parameter-passing method or methods are used?

What is a Coroutine in programming?

Coroutines are computer program components that generalize subroutines for non-preemptive multitasking, by allowing execution to be suspended and resumed. Coroutines are well-suited for implementing familiar program components such as cooperative tasks, exceptions, event loops, iterators, infinite lists and pipes.

What is a subprogram in programming?

Subprograms are small programs that are written within a larger, main program. The purpose of a subprogram is to perform a specific task. This task may need to be done more than once at various points in the main program.

What are the design issues of subprograms?

An overloaded subprogram is one that has the same name as another subprogram in the same referencing environment. calls. A closure is a nested subprogram and its referencing environment, which together allow the subprogram to be called from anywhere in a program.

What is built in subprogram?

A subprogram can be built inside a package, within a block of PL/SQL or in a schema. A schema level subprogram is an independent one that mainly deals with the CREATE function or procedure. It is stored in the database and we can perform delete or drop operations on them.

What are the disadvantages of subprograms?

Disadvantages: Access to the formal parameters will be slower than pass-by-value, because of additional level of indirect addressing that is required. Inadvertent and erroneous changes may be made to the actual parameter.