C/C++ Compiler (cl.hlp) (Table of Contents; Topic list)
C4047
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     Compiler warning (level 1) C4047
 
     'operator' : different levels of indirection
 
     An expression involving the specified operator had inconsistent
     levels of indirection.
 
     If both operands are of arithmetic type or if both are not (such
     as array or pointer), then they are used without change. However,
     the compiler may DS-extend one of the operands if one is __far
     and the other is __near. If one operand is arithmetic, but the
     other is not, the arithmetic operator is converted to the type of
     the other operator.
 
     For example, the following code generates this warning but is
     compiled without change:
 
          char **p;
          char *q;
          p = q;   // Warning
                                    -♦-