what is difference b/w extern & volatile variable??
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Answer Posted / mchilakala
Extern keyword specifies that the variable had been
declared globally where as volatile keyword specifies that
there is a chance of changing it's value by external
conditions.
Ex:
if we declare a variable as
"Volatile date=03/08/2011"
then output is 03/08/2011
then after one day the output will change to 04/08/2011.
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