utils/check.hpp

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//
// Copyright (c) 2020 INRIA
//
 
#ifndef __pinocchio_utils_check_hpp__
#define __pinocchio_utils_check_hpp__
 
#include <boost/type_traits/is_floating_point.hpp>
 
namespace pinocchio
{
 
  template<
    typename Scalar,
    bool default_value = true,
    bool is_real_valued = boost::is_floating_point<Scalar>::value>
  struct check_expression_if_real_valued
  {
    static bool run(const void *)
    {
      return default_value;
    }
  };
 
  template<typename Scalar, bool default_value>
  struct check_expression_if_real_valued<Scalar, default_value, true>
  {
    static bool run(const void * expression_ptr)
    {
      return *static_cast<const bool *>(expression_ptr);
    }
  };
 
  template<typename Scalar, typename Any>
  bool check_expression_if_real(const Any & expression)
  {
    return check_expression_if_real_valued<Scalar>::run(static_cast<const void *>(&expression));
  }
 
  template<typename Scalar, bool default_value, typename Any>
  bool check_expression_if_real(const Any & expression)
  {
    return check_expression_if_real_valued<Scalar, default_value>::run(
      static_cast<const void *>(&expression));
  }
 
} // namespace pinocchio
 
#endif // ifndef __pinocchio_utils_check_hpp__