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bdca8b01d2
#pragma once is a widely supported compiler pragma, even though it is not part of the C++ standard. Many of the issues keeping #pragma once from being standardized (distributed filesystems, build farms, hard links, etc.) do not apply to CMake - it is easy to build CMake on a single machine. CMake also does not install any header files which can be consumed by other projects (though cmCPluginAPI.h has been deliberately omitted from this conversion in case anyone is still using it.) Finally, #pragma once has been required to build CMake since at least August 2017 (7f29bbe6 enabled server mode unconditionally, which had been using #pragma once since September 2016 (b13d3e0d)). The fact that we now require C++11 filters out old compilers, and it is unlikely that there is a compiler which supports C++11 but does not support #pragma once.
43 lines
1.3 KiB
C++
43 lines
1.3 KiB
C++
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#pragma once
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#include "cmConfigure.h" // IWYU pragma: keep
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#include <string>
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#include <vector>
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/** \class cmUuid
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* \brief Utility class to generate UUIDs as defined by RFC4122
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*
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*/
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class cmUuid
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{
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public:
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std::string FromMd5(std::vector<unsigned char> const& uuidNamespace,
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std::string const& name) const;
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std::string FromSha1(std::vector<unsigned char> const& uuidNamespace,
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std::string const& name) const;
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bool StringToBinary(std::string const& input,
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std::vector<unsigned char>& output) const;
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private:
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std::string ByteToHex(unsigned char byte) const;
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void CreateHashInput(std::vector<unsigned char> const& uuidNamespace,
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std::string const& name,
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std::vector<unsigned char>& output) const;
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std::string FromDigest(const unsigned char* digest,
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unsigned char version) const;
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bool StringToBinaryImpl(std::string const& input,
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std::vector<unsigned char>& output) const;
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std::string BinaryToString(const unsigned char* input) const;
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bool IntFromHexDigit(char input, char& output) const;
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};
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