robot/include/rttr/detail/comparison/compare_equal_impl.h

/************************************************************************************
*                                                                                   *
*   Copyright (c) 2014 - 2018 Axel Menzel <info@rttr.org>                           *
*                                                                                   *
*   This file is part of RTTR (Run Time Type Reflection)                            *
*   License: MIT License                                                            *
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*   Permission is hereby granted, free of charge, to any person obtaining           *
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#ifndef RTTR_COMPARE_EQUAL_IMPL_H_
#define RTTR_COMPARE_EQUAL_IMPL_H_

#include "rttr/detail/base/core_prerequisites.h"
#include "rttr/detail/misc/misc_type_traits.h"
#include "rttr/type.h"
#include "rttr/detail/comparison/compare_array_equal.h"

#include <type_traits>
#include <cstring>

namespace rttr
{
namespace detail
{

/////////////////////////////////////////////////////////////////////////////////////////

/*!
 * \brief This function return the result of the expression `lhs == rhs` when the type \p T has the equal operator defined,
 *         otherwise this function will return false.
 */
template<typename T>
RTTR_INLINE typename std::enable_if<is_equal_comparable<T>::value && !std::is_array<T>::value, bool>::type
compare_equal(const T& lhs, const T& rhs, bool& ok)
{
    ok = true;
    return (lhs == rhs);
}

/////////////////////////////////////////////////////////////////////////////////////////

template<typename T>
RTTR_INLINE typename std::enable_if<!is_equal_comparable<T>::value && !std::is_array<T>::value, bool>::type
compare_equal(const T& lhs, const T& rhs, bool& ok)
{
    return compare_types_equal(&lhs, &rhs, type::get<T>(), ok);
}

/////////////////////////////////////////////////////////////////////////////////////////

template<typename T>
RTTR_INLINE typename std::enable_if<!is_equal_comparable<T>::value && std::is_array<T>::value, bool>::type
compare_equal(const T& lhs, const T& rhs, bool& ok)
{
    return compare_array_equal(lhs, rhs, ok);
}

/////////////////////////////////////////////////////////////////////////////////////////

} // end namespace detail
} // end namespace rttr

#endif // RTTR_COMPARE_EQUAL_IMPL_H_