static int lowbit ( int x ) {
  return x & ( - x ) ;
}

static int lowbit ( int x ) { return x & ( - x ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (return_statement (binary_expression left: (identifier) right: (parenthesized_expression (unary_expression operand: (identifier)))))))