/***************************** PDI STD File ***********************************
This file is taken from external sources. this is taken from open source uClibc++ 
library available on github. below is reference link. Thanking to author for
providing this .

This is free software. you can redistribute it and/or modify it but without any
warranty.

referred from   : https://github.com/mike-matera/ArduinoSTL
added Date      : 1st Dec 2024
added by        : Suraj I.
******************************************************************************/


#ifndef __TYPEINFO__
#define __TYPEINFO__

#include "exception"

extern "C++" {

namespace __cxxabiv1
{
  class __class_type_info;
} // namespace __cxxabiv1

#if !__GXX_WEAK__
  // If weak symbols are not supported, typeinfo names are not merged.
  #define __GXX_MERGED_TYPEINFO_NAMES 0
#else
  // On platforms that support weak symbols, typeinfo names are merged.
  #define __GXX_MERGED_TYPEINFO_NAMES 1
#endif

namespace pdistd 
{
  /**
   *  @brief  Part of RTTI.
   *
   *  The @c type_info class describes type information generated by
   *  an implementation.
  */
  class type_info 
  {
  public:
    /** Destructor. Being the first non-inline virtual function, this
     *  controls in which translation unit the vtable is emitted. The
     *  compiler makes use of that information to know where to emit
     *  the runtime-mandated type_info structures in the new-abi.  */
    virtual ~type_info();

  private:
    /// Assigning type_info is not supported.  Made private.
    type_info& operator=(const type_info&);
    type_info(const type_info&);
    
  protected:
    const char *__name;
    
  protected:
    explicit type_info(const char *__n): __name(__n) { }
    
  public:
    // the public interface
    /** Returns an @e implementation-defined byte string; this is not
     *  portable between compilers!  */
    const char* name() const
    { return __name; }

#if !__GXX_MERGED_TYPEINFO_NAMES
    bool before(const type_info& __arg) const;
    // In old abi, or when weak symbols are not supported, there can
    // be multiple instances of a type_info object for one
    // type. Uniqueness must use the _name value, not object address.
    bool operator==(const type_info& __arg) const;
#else
    /** Returns true if @c *this precedes @c __arg in the implementation's
     *  collation order.  */
    // In new abi we can rely on type_info's NTBS being unique,
    // and therefore address comparisons are sufficient.
    bool before(const type_info& __arg) const
    { return __name < __arg.__name; }
    bool operator==(const type_info& __arg) const
    { return __name == __arg.__name; }
#endif
    bool operator!=(const type_info& __arg) const
    { return !operator==(__arg); }
    
    // the internal interface
  public:
    // return true if this is a pointer type of some kind
    virtual bool __is_pointer_p() const;
    // return true if this is a function type
    virtual bool __is_function_p() const;

    // Try and catch a thrown type. Store an adjusted pointer to the
    // caught type in THR_OBJ. If THR_TYPE is not a pointer type, then
    // THR_OBJ points to the thrown object. If THR_TYPE is a pointer
    // type, then THR_OBJ is the pointer itself. OUTER indicates the
    // number of outer pointers, and whether they were const
    // qualified.
    virtual bool __do_catch(const type_info *__thr_type, void **__thr_obj,
			    unsigned __outer) const;

    // internally used during catch matching
    virtual bool __do_upcast(const __cxxabiv1::__class_type_info *__target,
			     void **__obj_ptr) const;
  };

  /**
   *  @brief  Thrown during incorrect typecasting.
   *
   *  If you attempt an invalid @c dynamic_cast expression, an instance of
   *  this class (or something derived from this class) is thrown.  */
  class bad_cast : public exception 
  {
  public:
    bad_cast() _UCXX_USE_NOEXCEPT { }
    // This declaration is not useless:
    // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
    virtual ~bad_cast() _UCXX_USE_NOEXCEPT;
  };
  
  /** If you use a NULL pointer in a @c typeid expression, this is thrown.  */
  class bad_typeid : public exception 
  {
  public:
    bad_typeid () _UCXX_USE_NOEXCEPT { }
    // This declaration is not useless:
    // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
    virtual ~bad_typeid() _UCXX_USE_NOEXCEPT;
  };
} // namespace std

} // extern "C++"
#endif
