Answer Posted / mahesh

call by value
int fun(int a,int b);
int fun(int p,int q)
{
temp=p;
p=q;
q=temp;
}
call by reference
int fun(int &a,int &b);
int fun(int *a,int *b)
{
temp=*a;
*a=*b;
*b=temp;
}
call by value is with values n call by ref with adresses n
pointers...

What is pointer and structure in c?

568

---

praagnovation

1774

---

What does the message "automatic aggregate intialization is an ansi feature" mean?

689

---

How can you return multiple values from a function?

626

---

Can a pointer be null?

558

---

---

Which of these functions is safer to use : fgets(), gets()? Why?

631

---

Why clrscr is used after variable declaration?

1035

---

What is the general form of function in c?

607

---

What is an lvalue?

632

---

What is sizeof c?

604

---

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

2029

---

What is function what are the types of function?

554

---

Write a program to check prime number in c programming?

594

---

What is structure packing in c?

602

---

What is the difference between specifying a constant variable like with constant keyword and #define it? i.e what is the difference between CONSTANT FLOAT A=1.25 and #define A 1.25

1492

---