alpaka
Abstraction Library for Parallel Kernel Acceleration
Functional.hpp
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1 /* Copyright 2022 Benjamin Worpitz, Bernhard Manfred Gruber
2  * SPDX-License-Identifier: MPL-2.0
3  */
4 
5 #pragma once
6 
7 #include "alpaka/core/Common.hpp"
8 
9 namespace alpaka::meta
10 {
11  template<typename T>
12  struct min
13  {
14  ALPAKA_NO_HOST_ACC_WARNING
15  ALPAKA_FN_HOST_ACC constexpr auto operator()(T const& lhs, T const& rhs) const
16  {
17  return (lhs < rhs) ? lhs : rhs;
18  }
19  };
20 
21  template<typename T>
22  struct max
23  {
24  ALPAKA_NO_HOST_ACC_WARNING
25  ALPAKA_FN_HOST_ACC constexpr auto operator()(T const& lhs, T const& rhs) const
26  {
27  return (lhs > rhs) ? lhs : rhs;
28  }
29  };
30 } // namespace alpaka::meta
ALPAKA_FN_HOST_ACC
#define ALPAKA_FN_HOST_ACC
Definition: Common.hpp:39
ALPAKA_NO_HOST_ACC_WARNING
#define ALPAKA_NO_HOST_ACC_WARNING
Disable nvcc warning: 'calling a host function from host device function.' Usage: ALPAKA_NO_HOST_ACC_...
Definition: Common.hpp:82
alpaka::meta::max::operator()
ALPAKA_NO_HOST_ACC_WARNING constexpr ALPAKA_FN_HOST_ACC auto operator()(T const &lhs, T const &rhs) const
Definition: Functional.hpp:25
alpaka::meta::min::operator()
ALPAKA_NO_HOST_ACC_WARNING constexpr ALPAKA_FN_HOST_ACC auto operator()(T const &lhs, T const &rhs) const
Definition: Functional.hpp:15