*****Listing 1***** 

#include <stdio.h>

main()
    {
    char real_array[20];
    printf("Realarray can hold %d chars.", sizeof(real_array));
    getarray(real_array);
    }

void getarray(passed_array)
char passed_array[];
    {
    printf("\nPassedarray can hold %d chars.", 
       sizeof(passed_array));
    }

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Results : (under Power C and Instant C)

Realarray can hold 20 chars.
Passedarray can hold 2 chars.

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