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C Exercises: Demonstrate the working of keyword long

C Variable Type : Exercise-18 with Solution

Write a C program to demonstrate the working of keyword long.

Sample Solution:

C Code:

#include<stdio.h>
int main()
{
    int a;
    long b;
    long long c;

    double e;
    long double f;
    printf("\n Demonstrate the working of keyword long \n");
    printf("------------------------------------------\n");

    printf(" The size of int = %ld bytes \n", sizeof(a));
    printf(" The size of long = %ld bytes\n", sizeof(b));
    printf(" The size of long long = %ld bytes\n", sizeof(c));

    printf(" The size of double = %ld bytes\n", sizeof(e));
    printf(" The size of long double = %ld bytes\n\n", sizeof(f));

    return 0;
}

Sample Output:

 Demonstrate the working of keyword long                                                                      
------------------------------------------                                                                    
 The size of int = 4 bytes                                                                                    
 The size of long = 8 bytes                                                                                   
 The size of long long = 8 bytes                                                                              
 The size of double = 8 bytes                                                                                 
 The size of long double = 16 bytes 

Flowchart:

C Exercises Flowchart: Demonstrate the working of keyword long

C Programming Code Editor:

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C Programming: Tips of the Day

Static variable inside of a function in C

The scope of variable is where the variable name can be seen. Here, x is visible only inside function foo().

The lifetime of a variable is the period over which it exists. If x were defined without the keyword static, the lifetime would be from the entry into foo() to the return from foo(); so it would be re-initialized to 5 on every call.

The keyword static acts to extend the lifetime of a variable to the lifetime of the programme; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().

Ref : https://bit.ly/3fOq7XP