What is the value of the static variable declared inside a function?

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Gurpreet

A static integer variable is declared inside a function. The variable increments by 1 when the function is called. The function is called and returns 3 times. What is the value of the variable on the third function call and what is the value when it returns?

Shravan40

int foo() {
   static int x = 0;
   x++;
   return x;
}

The keyword static acts to extend the lifetime of a variable to the lifetime of the program; e.g. initialization occurs once and once only and then the variable retains its value - whatever it has come to be - over all future calls to foo().

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edited at2021-07-20

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