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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.
50 lines
1.4 KiB
C++
50 lines
1.4 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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#include "cmCommand.h"
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#include "cmStateTypes.h"
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/** \class cmCoreTryCompile
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* \brief Base class for cmTryCompileCommand and cmTryRunCommand
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*
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* cmCoreTryCompile implements the functionality to build a program.
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* It is the base class for cmTryCompileCommand and cmTryRunCommand.
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*/
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class cmCoreTryCompile : public cmCommand
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{
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public:
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protected:
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/**
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* This is the core code for try compile. It is here so that other
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* commands, such as TryRun can access the same logic without
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* duplication.
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*/
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int TryCompileCode(std::vector<std::string> const& argv, bool isTryRun);
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/**
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* This deletes all the files created by TryCompileCode.
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* This way we do not have to rely on the timing and
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* dependencies of makefiles.
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*/
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void CleanupFiles(std::string const& binDir);
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/**
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* This tries to find the (executable) file created by
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TryCompileCode. The result is stored in OutputFile. If nothing is found,
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the error message is stored in FindErrorMessage.
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*/
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void FindOutputFile(const std::string& targetName,
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cmStateEnums::TargetType targetType);
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std::string BinaryDirectory;
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std::string OutputFile;
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std::string FindErrorMessage;
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bool SrcFileSignature = false;
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};
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