Answer Posted / anoop raj
The point of making a function inline is to hint to the
compiler that it is worth making some form of extra effort
to call the function faster than it would otherwise -
generally by substituting the code of the function into its
caller. As well as eliminating the need for a call and
return sequence, it might allow the compiler to perform
certain optimizations between the bodies of both functions.
Sometimes it is necessary for the compiler to emit a
stand-alone copy of the object code for a function even
though it is an inline function - for instance if it is
necessary to take the address of the function, or if it
can't be inlined in some particular context, or (perhaps) if
optimization has been turned off. (And of course, if you use
a compiler that doesn't understand inline, you'll need a
stand-alone copy of the object code so that all the calls
actually work at all.)
There are various ways to define inline functions; any given
kind of definition might definitely emit stand-alone object
code, definitely not emit stand-alone object code, or only
emit stand-alone object code if it is known to be needed.
Sometimes this can lead to duplication of object code, which
is a potential problem for following reasons:
1. It wastes space.
2. It can cause pointers to what is apparently the same
function to compare not equal to one another.
3. It might reduce the effectiveness of the instruction
cache. (Although in lining might do that in other ways too.)
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What is the difference between int main and void main?
What is anagram in c?
hi any body pls give me company name interview conduct "c" language only
How to explain the final year project as a fresher please answer with sample project
What are bitwise shift operators in c programming?
What is hungarian notation? Is it worthwhile?
What is #include called?
How to declare a variable?
in case any function return float value we must declare a) the function must be declared as 'float' in main() as well b) the function automatically returned float values c) function before declared 'float' keyword d) all the above
What is #ifdef ? What is its application?
What is the difference between NULL and NUL?
Why should I use standard library functions instead of writing my own?
how we can make 3d venturing graphics on outer interface
write a c programming using command line argument,demonstrate set operation(eg;union,intersection,difference) example output is c:>setop 12 34 45 1 union 34 42 66 c:>setop 12 34 1 42 66 c:>setop 12 34 diff 12 56 67 78 setop 12 34
What are the usage of pointer in c?