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mirror of https://github.com/rbock/sqlpp11.git synced 2024-11-15 20:31:16 +08:00

Added missing file offset.h

This commit is contained in:
Roland Bock 2013-09-27 10:59:09 +02:00
parent 75447a2959
commit 3d777d982a

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include/sqlpp11/offset.h Normal file
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/*
* Copyright (c) 2013, Roland Bock
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SQLPP_OFFSET_H
#define SQLPP_OFFSET_H
#include <ostream>
#include <sqlpp11/select_fwd.h>
#include <sqlpp11/type_traits.h>
namespace sqlpp
{
struct offset_t
{
using _is_offset = tag_yes;
template<typename Db>
void serialize(std::ostream& os, Db& db) const
{
os << " OFFSET " << _offset;
}
const std::size_t _offset;
};
struct dynamic_offset_t
{
using _is_offset = tag_yes;
using _is_dynamic = tag_yes;
dynamic_offset_t():
_offset(0)
{}
dynamic_offset_t(const dynamic_offset_t&) = default;
dynamic_offset_t(dynamic_offset_t&&) = default;
dynamic_offset_t& operator=(const dynamic_offset_t&) = default;
dynamic_offset_t& operator=(dynamic_offset_t&&) = default;
~dynamic_offset_t() = default;
void set(std::size_t offset)
{
_offset = offset;
}
template<typename Db>
void serialize(std::ostream& os, Db& db) const
{
if (_offset > 0)
os << " OFFSET " << _offset;
}
std::size_t _offset = 0;
};
}
#endif