test.c

#include <stdio.h>

typedef struct {
    char *name;
    int  age;
} Person;

void person_info(Person person)
{
    printf("%s, %i\n", person.name, person.age);
}

int main(int argc, const char *argv[])
{
    Person person = {"James Newton", 21};

    person_info(person);

    return 0;
}

test.rb

class Person
  attr_accessor :name, :age

  def initialize(name, age)
    self.name = name
    self.age  = age
  end
  
  def info
    puts "#{self.name}, #{self.age}"  
  end
end

person = Person.new('James Newton', 21)
person.info