more information about volatile,constant and static

[M.RAMARAO]

can anyone provide brief explanation about static,volatile and constant, please.........

 

[embpic]

static, volatile and constant are type of variable storage types.
if you use static storage type then value of this class variable is initially zero and doesn't get re-initilize. and value remains
as it is for out of functions also.

volatile is also initially zero. and normally compiler use most efficient way and optimize the code. but after use of volatile
storage class it warns the compiler don't optimize the code.

constant is use for keep varibles value constant through out the code and if it get try to change some where then it gives
warnings.

 

[M.RAMARAO]

thanks for your posting