0547e573c5
This removes the need for macOS nodes in Buildkite. It also moves to the proper way of testing backdeployment, which is to actually run on the target OS itself, instead of using packaged dylibs from previous OS versions and trying to emulate backdeployment with DYLD_LIBRARY_PATH. As a drive-by change, also fix a few back-deployment annotations that were incorrect and add support for minor versions in the Lit feature determining availability from the target triple.
113 lines
3.4 KiB
C++
113 lines
3.4 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// <fstream>
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// template <class charT, class traits = char_traits<charT> >
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// class basic_fstream
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// void open(const char* s, ios_base::openmode mode = ios_base::in|ios_base::out);
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// In C++23 and later, this test requires support for P2467R1 in the dylib (a3f17ba3febbd546f2342ffc780ac93b694fdc8d)
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// XFAIL: (!c++03 && !c++11 && !c++14 && !c++17 && !c++20) && using-built-library-before-llvm-18
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// XFAIL: LIBCXX-AIX-FIXME
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#include <fstream>
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#include <cassert>
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#include "test_macros.h"
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#include "platform_support.h"
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int main(int, char**)
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{
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std::string temp = get_temp_file_name();
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{
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std::fstream fs;
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assert(!fs.is_open());
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fs.open(temp.c_str(), std::ios_base::in | std::ios_base::out
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| std::ios_base::trunc);
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assert(fs.is_open());
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double x = 0;
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fs << 3.25;
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fs.seekg(0);
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fs >> x;
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assert(x == 3.25);
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}
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std::remove(temp.c_str());
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#ifndef TEST_HAS_NO_WIDE_CHARACTERS
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{
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std::wfstream fs;
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assert(!fs.is_open());
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fs.open(temp.c_str(), std::ios_base::in | std::ios_base::out
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| std::ios_base::trunc);
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assert(fs.is_open());
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double x = 0;
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fs << 3.25;
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fs.seekg(0);
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fs >> x;
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assert(x == 3.25);
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}
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std::remove(temp.c_str());
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#endif
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#if TEST_STD_VER >= 23
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// Test all the noreplace flag combinations
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{
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std::ios_base::openmode modes[] = {
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std::ios_base::out | std::ios_base::noreplace,
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std::ios_base::out | std::ios_base::trunc | std::ios_base::noreplace,
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std::ios_base::in | std::ios_base::out | std::ios_base::trunc | std::ios_base::noreplace,
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std::ios_base::out | std::ios_base::noreplace | std::ios_base::binary,
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std::ios_base::out | std::ios_base::trunc | std::ios_base::noreplace | std::ios_base::binary,
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std::ios_base::in | std::ios_base::out | std::ios_base::trunc | std::ios_base::noreplace |
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std::ios_base::binary,
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};
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for (auto mode : modes) {
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std::string tmp = get_temp_file_name(); // also creates the file
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{
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std::fstream f;
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f.open(tmp.c_str(), mode);
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assert(!f.is_open()); // since it already exists
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}
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{
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std::remove(tmp.c_str());
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std::fstream f;
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f.open(tmp.c_str(), mode);
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assert(f.is_open()); // since it doesn't exist
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}
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}
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# ifndef TEST_HAS_NO_WIDE_CHARACTERS
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for (auto mode : modes) {
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std::string tmp = get_temp_file_name(); // also creates the file
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{
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std::wfstream f;
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f.open(tmp.c_str(), mode);
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assert(!f.is_open()); // since it already exists
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}
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{
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std::remove(tmp.c_str());
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std::wfstream f;
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f.open(tmp.c_str(), mode);
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assert(f.is_open()); // since it doesn't exist
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}
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}
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# endif
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}
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#endif // TEST_STD_VER >= 23
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return 0;
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}
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