Explain how can I prevent another program from modifying part of a file that I am modifying?
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Why do we use null pointer?
Differentiate between Macro and ordinary definition.
Write a program in C to convert date displayed in gregorian to julian date
What is false about the following A compound statement is a.A set of simple statments b.Demarcated on either side by curly brackets c.Can be used in place of simple statement d.A C function is not a compound statement.
Why do we need functions in c?
main is a predefined or user define function if user defined why? if predefined whay?
What is string constants?
Explain indirection?
Prove or disprove P!=NP.
What is FIFO?
application areas a 'c' a) operating system b) graphics, interpreter, assembler c) program evalution, communication softwares d) all the above
1.what are local and global variables? 2.what is the scope of static variables? 3.what is the difference between static and global variables? 4.what are volatile variables? 5.what is the use of 'auto' keyword? 6.how do we make a global variable accessible across files? Explain the extern keyword? 7.what is a function prototype? 8.what does keyword 'extern' mean in a function declaration?