static int index ( int i ) {
  return 1 + ( i >> 31 ) - ( - i >> 31 ) ;
}

static int index ( int i ) { return 1 + ( i >> 31 ) - ( - i >> 31 ) ; }
(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: (binary_expression left: (decimal_integer_literal) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (parenthesized_expression (binary_expression left: (unary_expression operand: (identifier)) right: (decimal_integer_literal)))))))