#ifndef STAN_MATH_REV_CORE_OPERATOR_LOGICAL_AND_HPP
#define STAN_MATH_REV_CORE_OPERATOR_LOGICAL_AND_HPP

#include <stan/math/rev/core/var.hpp>

namespace stan {
  namespace math {

    /**
     * Return the logical conjunction of the values of the two
     * arguments as defined by <code>&amp;&amp;</code>.
     *
     * @param[in] x first argument
     * @param[in] y second argument
     * @return disjuntion of the argument's values
     */
    inline bool operator&&(const var& x, const var& y) {
      return x.val() && y.val();
    }

    /**
     * Return the logical conjunction of the values of the two
     * arguments as defined by <code>&amp;&amp;</code>.
     *
     * @param[in] x first argument
     * @param[in] y second argument
     * @return conjunction of first argument's value and second
     * argument
     */
    template <typename T>
    inline bool operator&&(const var& x, double y) {
      return x.val() && y;
    }

    /**
     * Return the logical conjunction of the values of the two
     * arguments as defined by <code>&amp;&amp;</code>.
     *
     * @param[in] x first argument
     * @param[in] y second argument
     * @return conjunction of first argument and second argument's
     * value
     */
    template <typename T>
    inline bool operator&&(double x, const var& y) {
      return x && y.val();
    }

  }
}
#endif
