lsst.afw
22.0.1-36-g99137b0eb+24a98d482b
include
lsst
afw
typehandling
detail
type_traits.h
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// -*- LSST-C++ -*-
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/*
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* This file is part of afw.
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*
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* Developed for the LSST Data Management System.
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* This product includes software developed by the LSST Project
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* (https://www.lsst.org).
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* See the COPYRIGHT file at the top-level directory of this distribution
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* for details of code ownership.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef LSST_AFW_TYPEHANDLING_DETAIL_TYPETRAITS_H
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#define LSST_AFW_TYPEHANDLING_DETAIL_TYPETRAITS_H
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#include <type_traits>
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namespace
lsst
{
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namespace
afw {
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namespace
typehandling {
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namespace
detail {
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// Test for smart pointers as "any type with an element_type member"
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// Second template parameter is a dummy to let us do some metaprogramming
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template
<
typename
,
typename
=
void
>
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constexpr
bool
IS_SMART_PTR
=
false
;
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template
<
typename
T>
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constexpr
bool
IS_SMART_PTR<T, std::enable_if_t<std::is_object<typename T::element_type>::value>> =
true
;
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}
// namespace detail
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}
// namespace typehandling
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}
// namespace afw
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}
// namespace lsst
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#endif
lsst::afw::typehandling::detail::IS_SMART_PTR
constexpr bool IS_SMART_PTR
Definition:
type_traits.h:38
lsst
A base class for image defects.
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