c++ - Are all variables inside a static function static by default? -

static void foo() {     int bar = 0; }

is bar static default? standard this?

no, provision making variable static in c++ static keyword.

for example if change foo to:

static void foo() {     int bar = 0;      bar++;     cout << bar << endl; }

and call:

foo(); foo();

because bar not static output be:

1
1

if declare bar static this:

static void foo() {     static int bar = 0;      bar++;     cout << bar << endl; }

your output in fact be:

1
2

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