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C Interview Questions
Questions Answers Views Company eMail

what is the difference between. system call and library function?

CDAC, Satyam,

2 17999

struct ptr { int a; char b; int *p; }abc; what is d sizeof structure without using "sizeof" operator??

Verifone,

9 11424

what is diff b/w huge & far & near pointer??

HCL,

1 2886

write a function for strtok()??

Verifone,

2 8538

what is the output of the following program and explain the answer #include exp() { main(5) } main(int a) { printf("%d",a); return; }

Satyam,

3 4194

what is difference b/w extern & volatile variable??

Teleca,

6 11200

what is the differnce between programing langauge and tool? is sas is a programing langauge r tool?

Gamesa, Satyam,

1442

design and implement a program that reads floating-points numbers in a sentinel-controlled loop until the user terminates the program by entering zero.your program should determinate and print the smallest,largest and average of the supplied numbers.

2 4128

i want to have a program to read a string and print the frequency of each character and it should work in turbo c

Persistent, Wipro,

3 6992

here is a link to download Let_Us_C_-_Yashwant_Kanetkar

Microsoft,

3 8912

How do you write a program which produces its own source code as its output?

2 3695

what is the importance of spanning tree?

1151

How to reverse a string using a recursive function, with swapping?

5 5777

How to Clear last bit if it 1 using Macro TURN_OFF_BIT_LAST

Adobe, Huawei,

6 8157

what is pointer

TCS,

1 3044


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Un-Answered Questions { C }

What is the use of static variable in c?

237


What is union and structure?

190


write a program that declares an array of 30 elements named "income" in the main functions. then cal and pass the array to a programmer-defined function named "getIncome" within the "getIncome" function, ask the user for annual income of 30 employees. then calculate and print total income on the screen using the following function: "void getIncome ( ai []);

1376


What is pragma c?

204


Explain what are header files and explain what are its uses in c programming?

214






1) There is a singing competition for children going to be conducted at a local club. Parents have been asked to arrive at least an hour before and register their children’s names with the Program Manager. Whenever a participant registers, the Program Manager has to position the name of the person in a list in alphabet order. Write a program to help the Program Manager do this by placing the name in the right place each time the Program Manger enters a name. The Logic should be written in Data Structures?

1412


Can we add pointers together?

240


What is the difference between array and pointer in c?

207


What is static memory allocation? Explain

240


what is the significance of static storage class specifier?

1256


How can I call a function with an argument list built up at run time?

196


What are pragmas and what are they good for?

223


If a five digit number is input through the keyboard, write a program to print a new number by adding one to each of its digits.For example if the number that is input is 12391 then the output should be displayed as 23402

2656


What does static mean in c?

182


What is boolean in c?

185