char temp[ ] = “string";

  char *someFun1()

    {

    char temp[ ] = “string";

    return temp;

    }

    char *someFun2()

    {

    char temp[ ] = {‘s’, ‘t’,’r’,’i’,’n’,’g’};

    return temp;

    }

    int main()

    {

    puts(someFun1());

    puts(someFun2());

    }

Answer:

    Garbage values.

Explanation:

    Both the functions suffer from the problem of dangling pointers. In someFun1() temp is a character array and so the space for it is allocated in heap and is initialized with character string “string”. This is created dynamically as the function is called, so is also deleted dynamically on exiting the function so the string data is not available in the calling function main() leading to print some garbage values. The function someFun2() also suffers from the same problem but the problem can be easily identified in this case.

Blog Author: Vijay Kumar

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