From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2181) id 321DF385780F; Mon, 5 Oct 2020 10:32:34 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 321DF385780F Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Jonathan Wakely To: gcc-cvs@gcc.gnu.org, libstdc++-cvs@gcc.gnu.org Subject: [gcc r11-3652] libstdc++: Test C++11 implementation of std::chrono::__detail::ceil X-Act-Checkin: gcc X-Git-Author: Mike Crowe X-Git-Refname: refs/heads/master X-Git-Oldrev: b98d3cc5666f36bf3cbeed7cd6a23483cc5e4eca X-Git-Newrev: d5243c46266f92f8e5373c3f314aa2abc15c9db4 Message-Id: <20201005103234.321DF385780F@sourceware.org> Date: Mon, 5 Oct 2020 10:32:34 +0000 (GMT) X-BeenThere: libstdc++-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libstdc++-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 05 Oct 2020 10:32:34 -0000 https://gcc.gnu.org/g:d5243c46266f92f8e5373c3f314aa2abc15c9db4 commit r11-3652-gd5243c46266f92f8e5373c3f314aa2abc15c9db4 Author: Mike Crowe Date: Mon Oct 5 11:07:55 2020 +0100 libstdc++: Test C++11 implementation of std::chrono::__detail::ceil Commit 53ad6b1979f4bd7121e977c4a44151b14d8a0147 split the implementation of std::chrono::__detail::ceil so that when compiling for C++17 and later std::chrono::ceil is used but when compiling for earlier versions a separate implementation is used to comply with C++11's limited constexpr rules. Let's run the equivalent of the existing std::chrono::ceil test cases on std::chrono::__detail::ceil too to make sure that it doesn't get broken. libstdc++-v3/ChangeLog: * testsuite/20_util/duration_cast/rounding_c++11.cc: Copy rounding.cc and alter to support compilation for C++11 and to test std::chrono::__detail::ceil. Diff: --- .../20_util/duration_cast/rounding_c++11.cc | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/libstdc++-v3/testsuite/20_util/duration_cast/rounding_c++11.cc b/libstdc++-v3/testsuite/20_util/duration_cast/rounding_c++11.cc new file mode 100644 index 00000000000..f10d27fd082 --- /dev/null +++ b/libstdc++-v3/testsuite/20_util/duration_cast/rounding_c++11.cc @@ -0,0 +1,43 @@ +// Copyright (C) 2016-2020 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 +// . + +// { dg-options "-std=gnu++11" } +// { dg-do compile { target c++11 } } + +#include + +using std::chrono::seconds; +using std::chrono::milliseconds; + +using fp_seconds = std::chrono::duration; + +static_assert( std::chrono::__detail::ceil(milliseconds(1000)) + == seconds(1) ); +static_assert( std::chrono::__detail::ceil(milliseconds(1001)) + == seconds(2) ); +static_assert( std::chrono::__detail::ceil(milliseconds(1500)) + == seconds(2) ); +static_assert( std::chrono::__detail::ceil(milliseconds(1999)) + == seconds(2) ); +static_assert( std::chrono::__detail::ceil(milliseconds(2000)) + == seconds(2) ); +static_assert( std::chrono::__detail::ceil(milliseconds(2001)) + == seconds(3) ); +static_assert( std::chrono::__detail::ceil(milliseconds(2500)) + == seconds(3) ); +static_assert( std::chrono::__detail::ceil(milliseconds(500)) + == fp_seconds{0.5f} );