58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
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/*+
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ARES/HADES/BORG Package -- ./libLSS/tools/overload.hpp
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Copyright (C) 2020 Guilhem Lavaux <guilhem.lavaux@iap.fr>
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Copyright (C) 2009-2020 Jens Jasche <jens.jasche@fysik.su.se>
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Additional contributions from:
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Guilhem Lavaux <guilhem.lavaux@iap.fr> (2023)
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+*/
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/* This particular trick has been taken from stackoverflow.
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* It allows to have overloaded lambda operator in C++11
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* https://stackoverflow.com/questions/32475576/c11-overloaded-lambda-with-variadic-template-and-variable-capture
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* Author: Piotr Skotnicki
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* MR FIXME: Is this still needed after ARES has changed to C++14?
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*/
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#pragma once
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#ifndef __LIBLSS_TOOLS_OVERLOAD_HPP
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# define __LIBLSS_TOOLS_OVERLOAD_HPP
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namespace LibLSS {
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namespace details_overload {
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template <class... Fs>
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struct _overload;
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template <class F0, class... Frest>
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struct _overload<F0, Frest...> : F0, _overload<Frest...> {
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_overload(F0 f0, Frest... rest) : F0(f0), _overload<Frest...>(rest...) {}
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using F0::operator();
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using _overload<Frest...>::operator();
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};
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template <class F0>
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struct _overload<F0> : F0 {
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_overload(F0 f0) : F0(f0) {}
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using F0::operator();
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};
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template <class... Fs>
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auto overload(Fs... fs) {
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return _overload<Fs...>(fs...);
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}
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} // namespace details_overload
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using details_overload::overload;
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} // namespace LibLSS
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#endif
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// ARES TAG: num_authors = 1
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// ARES TAG: name(0) = Guilhem Lavaux
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// ARES TAG: year(0) = 2020
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// ARES TAG: email(0) = guilhem.lavaux@iap.fr
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