Static variables are stored in the section called BSS (better save space :) ) and by the structure of the BSS all variable of BSS carry the value as zero (remember the variable is not assigned zero its the property of BSS that whole BSS area carry null value so the variable in BSS) where as local variables are stored in the local stack which does not have such property as BSS.
As per my understanding uninitialized static variable is stored in BSS and initialized static variable is stored in DS, then what about the variable which is initialized with 0 ? where it will be stored BSS/DS?
You can find three principal uses for the static. This is a good way how to start your answer to this question. Let’s look at the three principal uses:
Firstly, when you declare inside of a function: This retains the value between function calls
Secondly, when it is declared for the function name: By default function is extern..therefore it will be visible out of different files if the function declaration is set as static..it will be invisible for outer files
And lastly, static for global parameters: By default you can use global variables from outside files When it’s static global..this variable will be limited to within the file.
is this right ?
