Ruby inline C

# ruby agora fica legals neh HUIAHiuAHUAHUAH
require "rubygems"
require "inline"
class MyTest
  inline do |builder|
    builder.include '<string.h>'
    builder.add_compile_flags '-O3'
    builder.c "

char *strrev(char *str)
{
 char *p1, *p2;

 if(! str || ! *str)
  return str;
 for(p1 = str, p2 = str + strlen(str) - 1; p2 > p1; ++p1, --p2)
 {
  *p1 ^= *p2;
  *p2 ^= *p1;
  *p1 ^= *p2;
 }
 return str;
}

   "
  end
end

t = MyTest.new()
lol = t.strrev("Yahoo")
puts  lol