Answer Posted / veda

example of global variable----

#include<stdio.h>

int a; /***global variable*********/

void main()
{
int s;
printf("\n enter the value of a--");
scanf("%d",&a);
s=a+3;
printf("\n s=%d",a);

mul(); /****another function********/

getch();


void mul()
{
int m;

m=a*2;

printf("\n m=%d",a);
}


output---
enter the value of a----5

s=8

m=10


when u r compaing this program in lnux we get a waring
because in linux default type is integer so in calling
function we r giving void so internally compailer treate as
a int so,
here type declaration is impartent

What is scope rule in c?

1070

---

What is a MAC Address?

1063

---

Multiply an Integer Number by 2 Without Using Multiplication Operator

768

---

how to print the character with maximum occurence and print that number of occurence too in a string given ?

2474

---

Can I use base-2 constants (something like 0b101010)? Is there a printf format for binary?

1005

---

What is the difference between malloc() and calloc() function in c language?

1081

---

How does normalization of huge pointer works?

1172

---

What are the __date__ and __time__ preprocessor commands?

1119

---

Why c is called object oriented language?

1072

---

What is clrscr in c?

1137

---

How many header files are in c?

1038

---

What is f'n in math?

1070

---

ATM machine and railway reservation class/object diagram

5253

---

What are the advantages of the functions?

1162

---

Explain how can you tell whether a program was compiled using c versus c++?

1103

---