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mdspan_add_example(mdarray_ctors) |
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//@HEADER | ||
// ************************************************************************ | ||
// | ||
// Kokkos v. 4.0 | ||
// Copyright (2022) National Technology & Engineering | ||
// Solutions of Sandia, LLC (NTESS). | ||
// | ||
// Under the terms of Contract DE-NA0003525 with NTESS, | ||
// the U.S. Government retains certain rights in this software. | ||
// | ||
// Part of Kokkos, under the Apache License v2.0 with LLVM Exceptions. | ||
// See https://kokkos.org/LICENSE for license information. | ||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
// | ||
//@HEADER | ||
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#include <mdspan/mdspan.hpp> | ||
#include <mdspan/mdarray.hpp> | ||
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#include <cassert> | ||
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#define SUPPORT_ALLOC | ||
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template<class mda_t, class ext_t, class map_t, class Container> | ||
void check(mda_t& a, ext_t ext, map_t map, Container& c) { | ||
assert(a.extents() == ext); | ||
assert(a.mapping() == map); | ||
assert(a.container_size() == c.size()); | ||
} | ||
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// 11 ctors | ||
template<class mda_t, class Container> | ||
void test_minimal_set() { | ||
using ext_t = typename mda_t::extents_type; | ||
using map_t = typename mda_t::mapping_type; | ||
ext_t ext(10, 15); | ||
map_t map(ext); | ||
Container c(map.required_span_size()); | ||
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{ // default construction | ||
mda_t a; | ||
assert(a.extents() == ext_t()); | ||
assert(a.container_size() == map_t(ext_t()).required_span_size()); | ||
} | ||
{ // copy constructor | ||
mda_t a(10, 15); | ||
auto ptr = a.data(); | ||
mda_t b(a); | ||
check(b, ext, map, c); | ||
assert(b.data() != a.data()); | ||
assert(a.data() == ptr); | ||
} | ||
{ // move constructor | ||
mda_t a(10, 15); | ||
auto ptr = a.data(); | ||
mda_t b(std::move(a)); | ||
check(b, ext, map, c); | ||
assert(b.data() == ptr); | ||
} | ||
{ // integrals | ||
mda_t a(10, 15); | ||
check(a, ext, map, c); | ||
} | ||
{ // extents | ||
mda_t a(ext); | ||
check(a, ext, map, c); | ||
} | ||
{ // mapping | ||
mda_t a(map); | ||
check(a, ext, map, c); | ||
} | ||
{ // extents + container | ||
mda_t a(ext, c); | ||
check(a, ext, map, c); | ||
} | ||
{ // mapping + container | ||
mda_t a(map, c); | ||
check(a, ext, map, c); | ||
} | ||
{ // extents + move(container) | ||
auto c2 = c; | ||
double* ptr = c2.data(); | ||
mda_t a(ext, std::move(c2)); | ||
check(a, ext, map, c); | ||
assert(a.data() == ptr); | ||
} | ||
{ // mapping + move(container) | ||
auto c2 = c; | ||
double* ptr = c2.data(); | ||
mda_t a(map, std::move(c2)); | ||
check(a, ext, map, c); | ||
assert(a.data() == ptr); | ||
} | ||
{ // mdspan | ||
mda_t a(10, 15); | ||
a(0,0) = 99; | ||
mda_t b(a.to_mdspan()); | ||
check(b, ext, map, c); | ||
assert(b(0,0) == 99); | ||
} | ||
} | ||
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// baseline allocator support adds 6 ctors | ||
template<class mda_t, class Container> | ||
void test_alloc_set() { | ||
using ext_t = typename mda_t::extents_type; | ||
using map_t = typename mda_t::mapping_type; | ||
ext_t ext(10, 15); | ||
map_t map(ext); | ||
Container c(map.required_span_size()); | ||
auto alloc = std::allocator<typename mda_t::element_type>(); | ||
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{ // default construction | ||
mda_t a; | ||
assert(a.extents() == ext_t()); | ||
assert(a.container_size() == map_t(ext_t()).required_span_size()); | ||
} | ||
{ // integrals -> never directly supported | ||
#ifdef SUPPORT_ALLOC | ||
mda_t a(ext_t(10, 15), alloc); | ||
check(a, ext, map, c); | ||
#endif | ||
} | ||
{ // extents | ||
#ifdef SUPPORT_ALLOC | ||
mda_t a(ext, alloc); | ||
check(a, ext, map, c); | ||
#endif | ||
} | ||
{ // mapping | ||
#ifdef SUPPORT_ALLOC | ||
mda_t a(map, alloc); | ||
check(a, ext, map, c); | ||
#endif | ||
} | ||
{ // extents + container | ||
#ifdef SUPPORT_ALLOC | ||
mda_t a(ext, c, alloc); | ||
#else | ||
mda_t a(ext, std::move(Container(c,alloc))); | ||
#endif | ||
check(a, ext, map, c); | ||
} | ||
{ // mapping + container | ||
#ifdef SUPPORT_ALLOC | ||
mda_t a(map, c, alloc); | ||
#else | ||
mda_t a(map, std::move(Container(c,alloc))); | ||
#endif | ||
check(a, ext, map, c); | ||
} | ||
{ // extents + move(container) | ||
auto c2 = c; | ||
double* ptr = c2.data(); | ||
#ifdef SUPPORT_ALLOC | ||
mda_t a(ext, std::move(c2), alloc); | ||
#else | ||
mda_t a(ext, std::move(Container(std::move(c2),alloc))); | ||
#endif | ||
check(a, ext, map, c); | ||
assert(a.data() == ptr); | ||
} | ||
{ // mapping + move(container) | ||
auto c2 = c; | ||
double* ptr = c2.data(); | ||
#ifdef SUPPORT_ALLOC | ||
mda_t a(map, std::move(c2), alloc); | ||
#else | ||
mda_t a(map, std::move(Container(std::move(c2),alloc))); | ||
#endif | ||
check(a, ext, map, c); | ||
assert(a.data() == ptr); | ||
} | ||
} | ||
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// construct with fill value adds 2+2(alloc) ctors | ||
template<class mda_t, class Container> | ||
void test_value_set() { | ||
using ext_t = typename mda_t::extents_type; | ||
using map_t = typename mda_t::mapping_type; | ||
ext_t ext(10, 15); | ||
map_t map(ext); | ||
Container c(map.required_span_size()); | ||
auto alloc = std::allocator<typename mda_t::element_type>(); | ||
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{ // default construction | ||
mda_t a; | ||
assert(a.extents() == ext_t()); | ||
assert(a.container_size() == map_t(ext_t()).required_span_size()); | ||
} | ||
{ // integrals -> never directly supported | ||
mda_t a(ext_t(10, 15), 99); | ||
check(a, ext, map, c); | ||
assert(a(0,0)==99); | ||
} | ||
{ // extents | ||
mda_t a(ext, 99); | ||
check(a, ext, map, c); | ||
assert(a(0,0)==99); | ||
} | ||
{ // mapping | ||
mda_t a(map, 99); | ||
check(a, ext, map, c); | ||
assert(a(0,0)==99); | ||
} | ||
{ // extents | ||
mda_t a(ext, 99, alloc); | ||
check(a, ext, map, c); | ||
assert(a(0,0)==99); | ||
} | ||
{ // mapping | ||
mda_t a(map, 99, alloc); | ||
check(a, ext, map, c); | ||
assert(a(0,0)==99); | ||
} | ||
} | ||
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template<class mda_t, class Container> | ||
void test_value_set() { | ||
using ext_t = typename mda_t::extents_type; | ||
using map_t = typename mda_t::mapping_type; | ||
ext_t ext(10, 15); | ||
map_t map(ext); | ||
Container c(map.required_span_size()); | ||
auto alloc = std::allocator<typename mda_t::element_type>(); | ||
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{ // default construction | ||
mda_t a; | ||
assert(a.extents() == ext_t()); | ||
assert(a.container_size() == map_t(ext_t()).required_span_size()); | ||
} | ||
{ // integrals -> never directly supported | ||
mda_t a(ext_t(10, 15), 99); | ||
check(a, ext, map, c); | ||
assert(a(0,0)==99); | ||
} | ||
{ // extents | ||
mda_t a(ext, 99); | ||
check(a, ext, map, c); | ||
assert(a(0,0)==99); | ||
} | ||
{ // mapping | ||
mda_t a(map, 99); | ||
check(a, ext, map, c); | ||
assert(a(0,0)==99); | ||
} | ||
{ // extents | ||
mda_t a(ext, 99, alloc); | ||
check(a, ext, map, c); | ||
assert(a(0,0)==99); | ||
} | ||
{ // mapping | ||
mda_t a(map, 99, alloc); | ||
check(a, ext, map, c); | ||
assert(a(0,0)==99); | ||
} | ||
} | ||
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int main(int argc, char* argv[]) { | ||
test_minimal_set<Kokkos::Experimental::mdarray<double, Kokkos::extents<int, std::dynamic_extent, std::dynamic_extent>>, std::vector<double>>(); | ||
test_alloc_set<Kokkos::Experimental::mdarray<double, Kokkos::extents<int, std::dynamic_extent, std::dynamic_extent>>, std::vector<double>>(); | ||
test_value_set<Kokkos::Experimental::mdarray<double, Kokkos::extents<int, std::dynamic_extent, std::dynamic_extent>>, std::vector<double>>(); | ||
return 0; | ||
} |