C Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

C Interview Questions

Questions Answers Views Company eMail

What does the message "warning: macro replacement within a string literal" mean?

1 3579

AMMONG THE 4 STROAGE CLASSES IN C, WHICH ONE FASTEST?

HCL,

13 23488

a=0; b=(a=0)?2:3; a) What will be the value of b? why b) If in 1st stmt a=0 is replaced by -1, b=? c) If in second stmt a=0 is replaced by -1, b=?

Geometric Software,

6 14942

f() { int a=2; f1(a++); } f1(int c) { printf("%d", c); } c=?

Geometric Software,

7 13002

f1() { f(3);} f(int t) { switch(t); { case 2: c=3; case 3: c=4; case 4: c=5; case 5: c=6; default: c=0;} value of c?

Geometric Software,

5 10921

Define function ?Explain about arguments?

Geometric Software, Infosys,

2 8967

C passes By value or By reference?

Geometric Software, Infosys,

5 11360

difference between my-strcpy and strcpy ?

Geometric Software, IIM, Infosys,

3 14960

What compilation do?

Geometric Software, Infosys,

7 12061

Write a program to exchange two variaables without temp

Geometric Software,

9 13649

why java is called as a purely oops language.

TVS,

3 8795

macros and function are related in what aspect? a)recursion b)varying no of arguments c)hypochecking d)type declaration

HCL, Infosys, Microsoft,

12 37085

enum day = { jan = 1 ,feb=4, april, may} what is the value of may? a)4 b)5 c)6 d)11 e)none of the above

HCL, Wipro,

8 44858

2.main { int x,j,k; j=k=6;x=2; x=j*k; printf("%d", x);

HCL, Tech Mahindra,

9 32469

fn f(x) { if(x<=0) return; else f(x-1)+x; }

HCL,

5 18161

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Un-Answered Questions { C }

How can you find out how much memory is available?

1068

What is the difference between null pointer and wild pointer?

1194

Why clrscr is used after variable declaration?

1685

Explain the red-black trees?

1125

Why isn't any of this standardized in c? Any real program has to do some of these things.

1201

can anyone suggest some site name..where i can get some good data structure puzzles???

2082

What is an lvalue?

1063

What are predefined functions in c?

1092

What is difference between union All statement and Union?

1105

what value is returned to operating system after program execution?

2117

Why does everyone say not to use gets?

1100

What is data types?

1082

What are the different types of errors?

1138

What is this infamous null pointer, anyway?

1048

Explain what is the concatenation operator?

1167

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