function_traits.hpp

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// ArduinoJson - https://arduinojson.org
// Copyright (c) 2014-2024, Benoit BLANCHON
// MIT License
 
#pragma once
 
template< typename Sig >
struct function_traits;
 
template< typename ReturnType, typename Arg1 >
struct function_traits< ReturnType (*)(Arg1) >
{
  using return_type = ReturnType;
  using arg1_type = Arg1;
};
 
template< typename ReturnType, typename Arg1, typename Arg2 >
struct function_traits< ReturnType (*)(Arg1, Arg2) >
{
  using return_type = ReturnType;
  using arg1_type = Arg1;
  using arg2_type = Arg2;
};