34.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?
Answer Posted / snvs.narayana
43.prefix operator increase and then use value.
post fix operator use the value and then increase.
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Can you please explain the difference between malloc() and calloc() function?
What is indirection?
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.
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