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24.what is a void pointer? 25.why arithmetic operation can’t be performed on a void pointer? 26.differentiate between const char *a; char *const a; and char const *a; 27.compare array with pointer? 28.what is a NULL pointer? 29.what does ‘segmentation violation’ mean? 30.what does ‘Bus Error’ mean? 31.Define function pointers? 32.How do you initialize function pointers? Give an example? 33.where can function pointers be used?
2 1022034.what are bitwise shift operators? 35.what are bit fields? What is the use of bit fields in a structure declaration? 36.what is the size of an integer variable? 37.what are the files which are automatically opened when a c file is executed? 38.what is the little endian and big endian? 39.what is the use of fflush() function? 40.what is the difference between exit() and _exit() functions? 41.where does malloc() function get the memory? 42.what is the difference between malloc() and calloc() function? 43.what is the difference between postfix and prefix unary increment operators?
3 668844.what is the difference between strcpy() and memcpy() function? 45.what is output of the following statetment? 46.Printf(“%x”, -1<<4); ? 47.will the program compile? int i; scanf(“%d”,i); printf(“%d”,i); 48.write a string copy function routine? 49.swap two integer variables without using a third temporary variable? 50.how do you redirect stdout value from a program to a file? 51.write a program that finds the factorial of a number using recursion?
6 1224252.write a “Hello World” program in “c” without using a semicolon? 53.Give a method to count the number of ones in a 32 bit number? 54.write a program that print itself even if the source file is deleted? 55.Given an unsigned integer, find if the number is power of 2?
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25 62947Given an array A[n+m] of n+m numbers, where A[1] ... A[n] is sorted and A[n+1] ... A[n+m] is sorted. Design a linear time algorithm to obtain A[1...n+m] sorted using only O(1) extra space. Time Complexity of your algorithm should be O(n) and Space Complexity O(1).
2104How can I get Single byte from 'int' type variable? Can we alter single bit or multiple bits in int type variable? if so, How?
2 7716Can we access RAM? How? Whats the range of access? Similarly What are other hardware we can access?
1 4084Here is alphabets : abcdefgh 1) how to reverse. as hgfedcba 2) after reversal, how to group them in a pair hg fe dc ba.
2 7287
What are data structures in c and how to use them?
When should a type cast not be used?
How can you pass an array to a function by value?
in iso what are the common technological language?
Explain which of the following operators is incorrect and why? ( >=, <=, <>, ==)
What are 'near' and 'far' pointers?
What is fflush() function?
Explain what is wrong with this program statement?
What is dynamic variable in c?
How can I automatically locate a programs configuration files in the same directory as the executable?
What are variables and it what way is it different from constants?
Why cant I open a file by its explicit path?
what is a constant pointer in C
Explain how can you avoid including a header more than once?
What is %s and %d in c?
