Answer / rekha_sri

* A variable should be declared volatile whenever its value
could change unexpectedly.

* A volatile qualifier must be used when reading the contents
of a memory location whose value can change unknown to the
current program.

* A volatile qualifier must be used for shared data modified
in signal handlers or interrupt service routines.

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#include <stdio.h> int main ( int argc, char* argv [ ] ) { int value1 = 10; int value2 = 5; printf ( "\n The sum is :%d", value1 | value2 ); } This is the answer asked by some one to add two numbers with out using arithmetic operator?Yes this answer is write it given out put as 15.But how????? what is need of following line? int main ( int argc, char* argv [ ] ) how it work?what is the meaning for this line? please explain me.Advance thanks

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