mirror/gcc
2
0
Fork 0
mirror of git://gcc.gnu.org/git/gcc.git synced 2025-03-19 15:11:08 +08:00
Code Issues Packages Projects Releases Wiki Activity

libstdc++: Test C++11 implementation of std::chrono::__detail::ceil

Browse Source 
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.
This commit is contained in:
Mike Crowe 2020-10-05 11:07:55 +01:00 committed by Jonathan Wakely
parent b98d3cc566
commit d5243c4626
1 changed files with 43 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
libstdc++-v3/testsuite/20_util/duration_cast/rounding_c++11.cc Normal file
View File

@ -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
// <http://www.gnu.org/licenses/>.
// { dg-options "-std=gnu++11" }
// { dg-do compile { target c++11 } }
#include <chrono>
using std::chrono::seconds;
using std::chrono::milliseconds;
using fp_seconds = std::chrono::duration<float>;
static_assert( std::chrono::__detail::ceil<seconds>(milliseconds(1000))
== seconds(1) );
static_assert( std::chrono::__detail::ceil<seconds>(milliseconds(1001))
== seconds(2) );
static_assert( std::chrono::__detail::ceil<seconds>(milliseconds(1500))
== seconds(2) );
static_assert( std::chrono::__detail::ceil<seconds>(milliseconds(1999))
== seconds(2) );
static_assert( std::chrono::__detail::ceil<seconds>(milliseconds(2000))
== seconds(2) );
static_assert( std::chrono::__detail::ceil<seconds>(milliseconds(2001))
== seconds(3) );
static_assert( std::chrono::__detail::ceil<seconds>(milliseconds(2500))
== seconds(3) );
static_assert( std::chrono::__detail::ceil<fp_seconds>(milliseconds(500))
== fp_seconds{0.5f} );