# File lib/simplecov.rb, line 46
    def start(profile = nil, &block)
      if SimpleCov.usable?
        load_profile(profile) if profile
        configure(&block) if block_given?
        @result = nil
        self.running = true
        self.pid = Process.pid
        Coverage.start
      else
        warn "WARNING: SimpleCov is activated, but you're not running Ruby 1.9+ - no coverage analysis will happen"
        warn "Starting with SimpleCov 1.0.0, even no-op compatibility with Ruby <= 1.8 will be entirely dropped."
        false
      end
    end