Explain advantage of static storage class, Computer Engineering

Assignment Help:

Explain advantage of static storage class

The second and more subtle use of 'static' is in connection with external declarations. With external constructs it provides a privacy mechanism that is very important for program modularity. By privacy, we mean visiblilty or scope restrictions on otherwise accessible variables or functions. The difference between 'extern' and 'static extern' is that static external variables are scope-restricted external variables. The scope is the remainder of the source file in which they are declared. Thus, they are unavailable to functions defined earlier in the file or to functions defined in other files, even if these functions attempt use the 'extern' storage class keyword.

Example:

void f()

{

}

Statements;      /* count is not available here */

static int count;         /* Static External Variable*/

void s()

{

 Statemetns;      /* count can be used here */

 }

 


Related Discussions:- Explain advantage of static storage class

C, usability of union

usability of union

Explain arithmetic data processing instructions, Q. Explain Arithmetic Data...

Q. Explain Arithmetic Data Processing Instructions? These instructions carry outlogical and arithmetic operations on data. Arithmetic: The four fundamental operations are

Difference between commit-work and rollback-work tasks, What is the differe...

What is the difference between Commit-work and Rollback-Work tasks? Commit-Work statement "performs" many functions relevant to synchronized execution of tasks.  Rollback-work

Perform binary addition, Q. Explain the following: a. BCD code b. Gra...

Q. Explain the following: a. BCD code b. Gray code c. Excess-3 code d. True complement method Q. Addition-Subtraction-Multiplication-Division: Perform Binary Addi

How will you allocate sub system, How will you allocate sub system? All...

How will you allocate sub system? Allocate every concurrent subsystem to hardware unit. General purpose processor or specialized functional unit as follows: Estimate per

Subsequent statements set every element of matrix, Q. Subsequent statements...

Q. Subsequent statements set every element of matrix? Let a= [2,4,6,8,10], b=[1,3,5,7,9], c=[0,0,0,0,0] Consider the subsequent program section FORALL (i = 2:4)   a(i)

What is cursor, What is Cursor? Cursor is a database object used by app...

What is Cursor? Cursor is a database object used by applications to manipulate data in a set on a row-by- row basis, instead of the typical SQL commands that operate on all the

History of e-commerce, In 1960: The purpose of e-commerce was to exchange t...

In 1960: The purpose of e-commerce was to exchange the electronic data. In 1970s: Electronic Fund Transfers or EFT was developed which considered as huge impact in the emerging

Weight training calculations, Weight Training Calculations: However we...

Weight Training Calculations: However we have more weights in our network than in perceptrons but we firstly need to introduce the notation as: w ij just to specify the weigh

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd