///\file

/******************************************************************************
The MIT License(MIT)

Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com

Copyright(c) 2026 BMW AG

Permission is hereby granted, free of charge, to any person obtaining a copy
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The above copyright notice and this permission notice shall be included in all
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******************************************************************************/

#ifndef ETL_INFINITE_LOOP_INCLUDED
#define ETL_INFINITE_LOOP_INCLUDED

#include "platform.h"

namespace etl
{
  //*****************************************************************************
  /// An infinite loop that will not be optimised out
  ///
  /// Before C++26, an empty infinite loop without side effects is considered
  /// undefined behavior, and may be optimised away by the compiler.
  ///
  /// See also
  /// https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2809r1.html
  //*****************************************************************************
  ETL_NORETURN
  inline void infinite_loop()
  {
    while (true)
    {
#if ETL_NOT_USING_CPP26
  #if defined(ETL_COMPILER_GCC) || defined(ETL_COMPILER_CLANG)
      __asm__ __volatile__("" : : : "memory");
  #elif defined(ETL_COMPILER_MICROSOFT)
      _ReadWriteBarrier();
  #else
    #error "Infinite loop not supported for this compiler and platform"
  #endif
#endif
    }
  }
} // namespace etl

#endif