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Explain a file operation in C with an example.
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Go through this linked list concept.While traversing through the singly linked list sometimes the following code snippet "while(head != NULL)" is used and other times "while(head->link != NULL)"is used(Here head is the pointer pointing to the first node,node has two parts data part and link part).What is the difference between head != NULL and Head->link != NULL and in which situation are they used?
write a C program: To search a file any word which starts with ?a?. If the word following this ?a? starts with a vowel.Then replace this ?a? with ?a? with ?an?. redirect with the output onto an output file.The source file and destination file are specified by the user int the command line.
What is the diffrent between while and do while statement ?
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why do some people write if(0 == x) instead of if(x == 0)?
Why do we need a structure?
When is a void pointer used?
I need a sort of an approximate strcmp routine?
How can my program discover the complete pathname to the executable from which it was invoked?
"C" language developed by "Dennis Ritchie" at AT & T. his remarks are a) too general, too abstract b) could deal with only specific problems c) lost generality of BCPL and B restored d) no remarks
what is c
What is the incorrect operator form following list(== , <> , >= , <=) and what is the reason for the answer?
C 
