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Visual C++ reported a number of warnings: ..\src\filesystem.c(27): warning C4996: '_open': This function or variable may be unsafe. Consider using _sopen_s instead. To disable deprecation, use _CRT_SECURE_NO_WARNINGS. See online help for details. ..\src\filesystem.c(34): warning C4267: 'function': conversion from 'size_t' to 'unsigned int', possible loss of data ..\src\string_view.c(25): warning C4244: 'return': conversion from '__int64' to 'int', possible loss of data ..\src\string_view.c(41): warning C4244: 'return': conversion from '__int64' to 'int', possible loss of data ..\src\utils\list_cpu_features.c(151): warning C4090: 'function': different 'const' qualifiers ..\src\cpuinfo_x86.c(67): warning C4244: 'return': conversion from 'unsigned __int64' to 'uint32_t', possible loss of data ..\test\filesystem_for_testing.cc(48): warning C4267: 'return': conversion from 'size_t' to 'int', possible loss of data ..\test\filesystem_for_testing.cc(57): warning C4267: 'argument': conversion from 'size_t' to 'int', possible loss of data ..\test\bit_utils_test.cc(26): warning C4267: 'argument': conversion from 'size_t' to 'uint32_t', possible loss of data ..\test\bit_utils_test.cc(32): warning C4267: 'argument': conversion from 'size_t' to 'uint32_t', possible loss of data ..\test\bit_utils_test.cc(37): warning C4267: 'argument': conversion from 'size_t' to 'uint32_t', possible loss of data Most of them, with the exception of _open() -> _sopen_s() are about questionable implicit casts. Fixing the types and adding explicit casts to explicitly mark the intention (and silence the warnings in the process)
62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
// Copyright 2017 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Implements a fake filesystem, useful for tests.
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#ifndef CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_
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#define CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_
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#include <memory>
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#include <string>
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#include <unordered_map>
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#include "internal/filesystem.h"
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namespace cpu_features {
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class FakeFile {
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public:
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explicit FakeFile(int file_descriptor, const char* content);
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~FakeFile();
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void Open();
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void Close();
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int Read(int fd, void* buf, size_t count);
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int GetFileDescriptor() const { return file_descriptor_; }
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private:
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const int file_descriptor_;
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const std::string content_;
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bool opened_ = false;
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size_t head_index_ = 0;
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};
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class FakeFilesystem {
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public:
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void Reset();
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FakeFile* CreateFile(const std::string& filename, const char* content);
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FakeFile* FindFileOrDie(const int file_descriptor) const;
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FakeFile* FindFileOrNull(const std::string& filename) const;
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private:
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int next_file_descriptor_ = 0;
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std::unordered_map<std::string, std::unique_ptr<FakeFile>> files_;
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};
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FakeFilesystem& GetEmptyFilesystem();
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} // namespace cpu_features
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#endif // CPU_FEATURES_TEST_FILESYSTEM_FOR_TESTING_H_
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