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Add support for std::unique_ptr and std::shared_ptr
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Elyas El Idrissi
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Apr 6, 2023
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// | ||
// Copyright (C) 2023 Elyas El Idrissi | ||
// Distributed under the Boost Software License, Version 1.0. | ||
// (See accompanying file LICENSE_1_0.txt or copy at | ||
// http://www.boost.org/LICENSE_1_0.txt) | ||
// | ||
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#ifndef SOCI_STD_PTR_H_INCLUDED | ||
#define SOCI_STD_PTR_H_INCLUDED | ||
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#include "soci/type-conversion-traits.h" | ||
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#include <memory> | ||
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namespace soci | ||
{ | ||
// simple fall-back for std::unique_ptr | ||
template <typename T> | ||
struct type_conversion<std::unique_ptr<T>> | ||
{ | ||
typedef typename type_conversion<T>::base_type base_type; | ||
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static void from_base(base_type const & in, indicator ind, std::unique_ptr<T> & out) | ||
{ | ||
if (ind == i_null) | ||
{ | ||
out.reset(); | ||
} | ||
else | ||
{ | ||
T tmp = T(); | ||
type_conversion<T>::from_base(in, ind, tmp); | ||
out = std::make_unique<T>(tmp); | ||
} | ||
} | ||
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static void to_base(std::unique_ptr<T> const & in, base_type & out, indicator & ind) | ||
{ | ||
if (in) | ||
{ | ||
type_conversion<T>::to_base(*in, out, ind); | ||
} | ||
else | ||
{ | ||
ind = i_null; | ||
} | ||
} | ||
}; | ||
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// simple fall-back for std::shared_ptr | ||
template <typename T> | ||
struct type_conversion<std::shared_ptr<T> > | ||
{ | ||
typedef typename type_conversion<T>::base_type base_type; | ||
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static void from_base(base_type const & in, indicator ind, std::shared_ptr<T> & out) | ||
{ | ||
if (ind == i_null) | ||
{ | ||
out.reset(); | ||
} | ||
else | ||
{ | ||
T tmp = T(); | ||
type_conversion<T>::from_base(in, ind, tmp); | ||
out = std::make_shared<T>(tmp); | ||
} | ||
} | ||
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static void to_base(std::shared_ptr<T> const & in, base_type & out, indicator & ind) | ||
{ | ||
if (in) | ||
{ | ||
type_conversion<T>::to_base(*in, out, ind); | ||
} | ||
else | ||
{ | ||
ind = i_null; | ||
} | ||
} | ||
}; | ||
} | ||
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#endif // SOCI_STD_PTR_H_INCLUDED |