static int gcd ( int a , int b ) {
  while ( b != 0 ) {
    int t = b ;
    b = a % b ;
    a = t ;
  }
  return a ;
}

static int gcd ( int a , int b ) { while ( b != 0 ) { int t = b ; b = a % b ; a = t ; } return a ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (while_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier)))) (expression_statement (assignment_expression left: (identifier) right: (identifier))))) (return_statement (identifier))))