x == AND_ASSIGN || x == OR_ASSIGN || x == INC_OP || x == DEC_OP)
#define IS_DEREF_OP(x) (( x->opval.op == '*' && x->right == NULL) || x->opval.op == '.')
x == AND_ASSIGN || x == OR_ASSIGN || x == INC_OP || x == DEC_OP)
#define IS_DEREF_OP(x) (( x->opval.op == '*' && x->right == NULL) || x->opval.op == '.')