Storage Class Extern

#include <stdio.h>

int p(void);

main()

{

extern int cnt;

int k;

cnt = -10;

k = p();

printf("%d\n", k);

++cnt;

k = p();

printf("%d\n", k);

}

int cnt = 0;

int p(void)

{

return ++cnt;

}

Define and initialize cnt as type int, storage class extern.

Declare cnt as extern.

This is program pg401.c

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