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52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
/* Copyright (C) 2020 MariaDB Corporation
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef UTILS_COMMON_CHECKS_H
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#define UTILS_COMMON_CHECKS_H
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#include <type_traits>
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#include "mcs_int128.h"
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namespace utils {
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template <typename T>
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typename std::enable_if<std::is_unsigned<T>::value ||
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datatypes::is_uint128_t<T>::value,
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bool>::type
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is_nonnegative(T) { return true; };
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template <typename T>
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typename std::enable_if<std::is_signed<T>::value ||
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datatypes::is_int128_t<T>::value,
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bool>::type
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is_nonnegative(T v) { return v >= 0; };
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template <typename T>
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typename std::enable_if<std::is_unsigned<T>::value ||
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datatypes::is_uint128_t<T>::value,
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bool>::type
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is_negative(T) { return false; };
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template <typename T>
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typename std::enable_if<std::is_signed<T>::value ||
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datatypes::is_int128_t<T>::value,
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bool>::type
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is_negative(T v) { return v < 0; };
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} // namespace utils
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#endif // UTILS_COMMON_CHECKS_H
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