Answer Posted / sree

normal variable stores a value of the given datatype where
as the pointer variable stores the address of a variable.
for example
int n=10;
int *p;
p=&n;
here p is a pointer variable and n is a normal
variable.p stores the address of n where as n stores an
integer value.
*p prints the value of n,p prints the address
of n.

What does the c preprocessor do?

1101

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Explain how do you declare an array that will hold more than 64kb of data?

1446

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What will the code below print when it is executed?   int x = 3, y = 4;         if (x = 4)                 y = 5;         else                 y = 2;         printf ("x=%d, y=%d ",x,y);

1874

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What is memcpy() function?

1113

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what is use of malloc and calloc?

1895

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What are compound statements?

1169

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a=10;b= 5;c=3;d=3; if(a printf(%d %d %d %d a,b,c,d) else printf("%d %d %d %d a,b,c,d);

1126

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Explain how are 16- and 32-bit numbers stored?

1260

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List the difference between a "copy constructor" and a "assignment operator"?

1006

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Differentiate between full, complete & perfect binary trees.

1087

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What is the use of static variable in c?

1087

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Write a program to swap two numbers without using third variable?

1286

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Can a void pointer point to a function?

1015

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swap 2 numbers without using third variable?

1120

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Once I have used freopen, how can I get the original stdout (or stdin) back?

1073

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