#include <stdio.h>

int *Calc( int *pFact )
{
    *pFact = 30;
    return pFact;
}

void Func( int **ppIn )
{
    printf( "%d" , **ppIn );
}

int main( void )
{
    int *pHoge = NULL;
    pHoge = new int(10);
    
    Func( &(Calc( pHoge )) );

    return 0;
}

In function 'int main()':
Line 19: error: invalid lvalue in unary '&'
compilation terminated due to -Wfatal-errors.