doubt

Question

main()

{

register int i = 10;

 int *a=  &i;

printf("%d",*a);

return 0 ;

}

why writing program like this is no good , i  studied that it is compiler dependent it will run or not that depends on compiler ? 

Comments

I read that :- By using "register" keyword, we are requesting to the compiler to get register allocation to store the variable. It is not a command. So the request can be denied if there is no space. But this denial will not be informed.

Edit: I missed that line of code..you are trying to access the address of register..it shows error..but why i don't the proper reason...

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@MiNiPanda thanku :P

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It is compiler dependent, in this compiler may give an error. Because an integer pointer pointing to a register which is not in memory and hence its address is not available.

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thanks bro