| Message ID | 20200928044854.46674-3-ppalka@redhat.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/4] libstdc++: Reduce the size of an unbounded iota_view | expand |
On 28/09/20 00:48 -0400, Patrick Palka via Libstdc++ wrote: >libstdc++-v3/ChangeLog: > > * testsuite/std/ranges/adaptors/sizeof.cc: New test. OK. > .../testsuite/std/ranges/adaptors/sizeof.cc | 49 +++++++++++++++++++ > 1 file changed, 49 insertions(+) > create mode 100644 libstdc++-v3/testsuite/std/ranges/adaptors/sizeof.cc > >diff --git a/libstdc++-v3/testsuite/std/ranges/adaptors/sizeof.cc b/libstdc++-v3/testsuite/std/ranges/adaptors/sizeof.cc >new file mode 100644 >index 00000000000..5fb1ab7e4da >--- /dev/null >+++ b/libstdc++-v3/testsuite/std/ranges/adaptors/sizeof.cc >@@ -0,0 +1,49 @@ >+// Copyright (C) 2020 Free Software Foundation, Inc. >+// >+// This file is part of the GNU ISO C++ Library. This library is free >+// software; you can redistribute it and/or modify it under the >+// terms of the GNU General Public License as published by the >+// Free Software Foundation; either version 3, or (at your option) >+// any later version. >+ >+// This library is distributed in the hope that it will be useful, >+// but WITHOUT ANY WARRANTY; without even the implied warranty of >+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the >+// GNU General Public License for more details. >+ >+// You should have received a copy of the GNU General Public License along >+// with this library; see the file COPYING3. If not see >+// <http://www.gnu.org/licenses/>. >+ >+// { dg-options "-std=gnu++2a" } >+// { dg-do compile { target c++2a } } >+ >+#include <ranges> >+#include <string_view> >+ >+namespace ranges = std::ranges; >+ >+auto pred_f(int x) { return x%2 == 0; }; >+auto pred_l = [] (int x) { return x%2 == 0; }; >+ >+auto func_f(int x) { return x*x; } >+auto func_l = [] (int x) { return x*x; }; >+ >+using V = ranges::subrange<int*, int*>; >+constexpr auto ptr = sizeof(int*); >+static_assert(sizeof(V) == 2*ptr); >+ >+static_assert(sizeof(ranges::take_view<V>) == 4*ptr); >+static_assert(sizeof(ranges::drop_view<V>) == 4*ptr); >+ >+static_assert(sizeof(ranges::filter_view<V, decltype(&pred_f)>) == 5*ptr); >+static_assert(sizeof(ranges::take_while_view<V, decltype(&pred_f)>) == 4*ptr); >+static_assert(sizeof(ranges::drop_while_view<V, decltype(&pred_f)>) == 5*ptr); >+static_assert(sizeof(ranges::transform_view<V, decltype(&func_f)>) == 4*ptr); >+ >+static_assert(sizeof(ranges::filter_view<V, decltype(pred_l)>) == 4*ptr); >+static_assert(sizeof(ranges::take_while_view<V, decltype(pred_l)>) == 3*ptr); >+static_assert(sizeof(ranges::drop_while_view<V, decltype(pred_l)>) == 4*ptr); >+static_assert(sizeof(ranges::transform_view<V, decltype(func_l)>) == 3*ptr); >+ >+static_assert(sizeof(ranges::split_view<V, std::string_view>) == 5*ptr); >-- >2.28.0.618.g9bc233ae1c >
diff --git a/libstdc++-v3/testsuite/std/ranges/adaptors/sizeof.cc b/libstdc++-v3/testsuite/std/ranges/adaptors/sizeof.cc new file mode 100644 index 00000000000..5fb1ab7e4da --- /dev/null +++ b/libstdc++-v3/testsuite/std/ranges/adaptors/sizeof.cc @@ -0,0 +1,49 @@ +// Copyright (C) 2020 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +// { dg-options "-std=gnu++2a" } +// { dg-do compile { target c++2a } } + +#include <ranges> +#include <string_view> + +namespace ranges = std::ranges; + +auto pred_f(int x) { return x%2 == 0; }; +auto pred_l = [] (int x) { return x%2 == 0; }; + +auto func_f(int x) { return x*x; } +auto func_l = [] (int x) { return x*x; }; + +using V = ranges::subrange<int*, int*>; +constexpr auto ptr = sizeof(int*); +static_assert(sizeof(V) == 2*ptr); + +static_assert(sizeof(ranges::take_view<V>) == 4*ptr); +static_assert(sizeof(ranges::drop_view<V>) == 4*ptr); + +static_assert(sizeof(ranges::filter_view<V, decltype(&pred_f)>) == 5*ptr); +static_assert(sizeof(ranges::take_while_view<V, decltype(&pred_f)>) == 4*ptr); +static_assert(sizeof(ranges::drop_while_view<V, decltype(&pred_f)>) == 5*ptr); +static_assert(sizeof(ranges::transform_view<V, decltype(&func_f)>) == 4*ptr); + +static_assert(sizeof(ranges::filter_view<V, decltype(pred_l)>) == 4*ptr); +static_assert(sizeof(ranges::take_while_view<V, decltype(pred_l)>) == 3*ptr); +static_assert(sizeof(ranges::drop_while_view<V, decltype(pred_l)>) == 4*ptr); +static_assert(sizeof(ranges::transform_view<V, decltype(func_l)>) == 3*ptr); + +static_assert(sizeof(ranges::split_view<V, std::string_view>) == 5*ptr);