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C Interview Questions
Questions Answers Views Company eMail

Difference between goto, long jmp() and setjmp()?

EXL,

1228

Find duplicates in a file containing 6 digit number (like uid) in O (n) time.

GrapeCity,

3309

What is the significance of scope resolution operator?

Agilent, ZS Associates,

1455

Do pointers store the address of value or the actual value of a variable?

Fidelity,

1123

What are the advantages of using new operator as compared to the function malloc ()?

NIIT,

1406

What is difference between constant pointer and constant variable?

Hexaware,

1399

Write a Program to find whether the given number or string is palindrome.

InterGraph,

1336

How can I remove the trailing spaces from a string?

Aspire,

1116

Can a function be forced to be inline? Also, give a comparison between inline function and the C macro?

Genpact,

1155

What is the maximum no. of arguments that can be given in a command line in C.?

HCL,

1199

swap 2 numbers without using third variable?

IBS,

1175

Write a code to generate divisors of an integer?

Ericsson,

1105

What is the difference between union and anonymous union?

Hexaware,

1373

What is a void pointer? When is a void pointer used?

Aspire, Infogain,

1104

Can you define which header file to include at compile time?

Aspire, Infogain,

1069


Post New C Questions

Un-Answered Questions { C }

What is a double c?

1039


What is C language ?

2018


What is the difference between malloc calloc and realloc in c?

1187


What is the right type to use for boolean values in c? Is there a standard type? Should I use #defines or enums for the true and false values?

1102


What is table lookup in c?

1144


an expression contains relational operators, assignment operators, and arithmatic operstors. In the absence of parentheses, they will be evaluated in which of the following order a) assignment, relational, arithematic b) arithematic, relational, assignment c) relational, arithematic, assignment d) assignment, arithematic, relational

1377


What is nested structure with example?

1134


How does struct work in c?

1137


write an interactive C program that will encode or decode a line of text.To encode a line of text,proceed as follows. 1.convert each character,including blank spaces,to its ASCII equivalent. 2.Generate a positive random integer.add this integer to the ASCII equivalent of each character.The same random integer will be used for the entire line of text. 3.Suppose that N1 represents the lowest permissible value in the ASCII code,and N2 represents the highest permissible value.If the number obtained in step 2 above(i.e.,the original ASCII equivalent plus the random integer)exceeds N2,then subtract the largest possible multiple of N2 from this number,and add the remainder to N1.Hence the encoded number will always fall between N1 and N2,and will therefore always represent some ASCII character. 4.Dislay the characters that correspond to the encoded ASCII values.  The procedure is reversed when decoding a line of text.Be certain,however,that the same random number is used in decodingas was used in encoding.

3538


Explain what is wrong with this program statement?

1156


Is there a way to jump out of a function or functions?

1163


What does do in c?

1118


How reliable are floating-point comparisons?

1141


What standard functions are available to manipulate strings?

1205


Explain pointers in c programming?

1159