Define variable declaration in c++, C/C++ Programming

Assignment Help:

Variable Declaration

This declaration of variables in the C language is permitted only in the starting of their block, prior to executable program statements. In C++ declaration of variables can be interspersed with executable program statements. The scope id variables, though, remains  the same - the block in which they are declared.

e.g.

void main()

                 {

                  int x = 10;

                printf (" the value of x= % d\n",x);

                int y = 0;

 

for( int z= 0; z < 10; ; z++)              // variable declared

here.

                       {

y ++;

x ++;

                                  }

}

Although, a deviation from the old style of declaring all variables in the starting of the block, this does save some amount of memory, i.e., a variable is not given a memory unless the declaration statement. Also, as a variable can be declared just before using it is assume to give a better control over variables.

 


Related Discussions:- Define variable declaration in c++

Program for function in cpp, Question Write a program using c++ for the...

Question Write a program using c++ for the above function , at a= 1000, b=10 -3 ,10 -2 ,10 -4

Program for manage the tasks of a robot, Consider a group of n robots, numb...

Consider a group of n robots, numbered R2D1 through R2Dn, and m tasks, numbered 1 through m. Tasks can be different and robots are specialized, hence a given robot can only perform

#padovan string in c, #write a program that counts the number of occurances...

#write a program that counts the number of occurances of the string in the n-th padovan string p(n)

Explain hiding overloaded functions, Hiding overloaded functions We can...

Hiding overloaded functions We cannot overload a base class function by redefining it in a derived class with a dissimilar argument list. Consider examples to see if similar fu

Program''s, why is programming is needed now-a-days.what is the benefit of ...

why is programming is needed now-a-days.what is the benefit of colleges to apply heavy loads on students head.

Area under the curve, Write a program to find the area under the curve y = ...

Write a program to find the area under the curve y = f(x) between x = a and x = b, integrate y = f(x) between the limits of a and b. The area under a curve between two points can b

Luminous jevel, Ask queByteland county is very famous for luminous jewels. ...

Ask queByteland county is very famous for luminous jewels. Luminous jewels are used in making beautiful necklaces. A necklace consists of various luminous jewels of particular colo

How do you connect a c++ program to c functions?, A: Using the extern "C" l...

A: Using the extern "C" linkage specification around the C function declarations. Programmers must know about mangled function names and type-safe linkages. After that they must

Area under curve., write a c progrm to find area under the cuve y=f(x)  ...

write a c progrm to find area under the cuve y=f(x)   #include float start_point, /* GLOBAL VARIABLES */ end_point, total_area; in

Explain friend for overloading operators, Friend for Overloading Operators ...

Friend for Overloading Operators Sometimes friend functions cannot be avoided. For example with the operator overloading. Consider the following class that have data members to

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