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++

Padovan string, c program to count the number of occurances of the string i...

c program to count the number of occurances of the string in padovan''s string

C assignment , 1. Create text a file with the name "myemail" that has a sin...

1. Create text a file with the name "myemail" that has a single line in it, consisting of your email address. Something like "[email protected]" (or your hotmail or gm

Constructor, Why copy constructor accepts reference to an object and not t...

Why copy constructor accepts reference to an object and not the object itself, whether ah hence it we do otherwise

Working with files in cpp, Operation Files 2.1. Your program should open an...

Operation Files 2.1. Your program should open and read the file specified by the first command line argument of the program. 2.2. The first line of the file contains an integer

C program for removing specified charecter , #include stdio.h> #include ...

#include stdio.h> #include conio.h> #include string.h>   void del(char[],char *); main() {           char str[30],ch,*pp;           clrscr();           p

Computer graphics, .Develop a two dimensional interactive game with the fol...

.Develop a two dimensional interactive game with the following features: 1. Use OpenGL (any version you find convenient) 2. The game can either be two player or one player with the

C++, Program to print the total marks and percentage of the 3 students usin...

Program to print the total marks and percentage of the 3 students using array

Super ASCII string checker, In the Byteland country a string "s" is said to...

In the Byteland country a string "s" is said to super ascii string if and only if count of each charecter in the string is equal to its ascci value in the byteland country ascii co

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