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//===- llvm/System/Path.h - Path Operating System Concept -------*- C++ -*-===//
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// The LLVM Compiler Infrastructure
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//===----------------------------------------------------------------------===//
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// This file declares the llvm::sys::Path class.
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SYSTEM_PATH_H
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#define LLVM_SYSTEM_PATH_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/System/TimeValue.h"
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/// This structure provides basic file system information about a file. It
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/// is patterned after the stat(2) Unix operating system call but made
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/// platform independent and eliminates many of the unix-specific fields.
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/// However, to support llvm-ar, the mode, user, and group fields are
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/// retained. These pertain to unix security and may not have a meaningful
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/// value on non-Unix platforms. However, the other fields should
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/// always be applicable on all platforms. The structure is filled in by
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/// the PathWithStatus class.
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/// @brief File status structure
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uint64_t fileSize; ///< Size of the file in bytes
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TimeValue modTime; ///< Time of file's modification
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uint32_t mode; ///< Mode of the file, if applicable
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uint32_t user; ///< User ID of owner, if applicable
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uint32_t group; ///< Group ID of owner, if applicable
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uint64_t uniqueID; ///< A number to uniquely ID this file
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bool isDir : 1; ///< True if this is a directory.
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bool isFile : 1; ///< True if this is a file.
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FileStatus() : fileSize(0), modTime(0,0), mode(0777), user(999),
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group(999), uniqueID(0), isDir(false), isFile(false) { }
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TimeValue getTimestamp() const { return modTime; }
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uint64_t getSize() const { return fileSize; }
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uint32_t getMode() const { return mode; }
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uint32_t getUser() const { return user; }
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uint32_t getGroup() const { return group; }
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uint64_t getUniqueID() const { return uniqueID; }
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/// This class provides an abstraction for the path to a file or directory
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/// in the operating system's filesystem and provides various basic operations
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/// on it. Note that this class only represents the name of a path to a file
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/// or directory which may or may not be valid for a given machine's file
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/// system. The class is patterned after the java.io.File class with various
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/// extensions and several omissions (not relevant to LLVM). A Path object
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/// ensures that the path it encapsulates is syntactically valid for the
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/// operating system it is running on but does not ensure correctness for
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/// any particular file system. That is, a syntactically valid path might
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/// specify path components that do not exist in the file system and using
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/// such a Path to act on the file system could produce errors. There is one
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/// invalid Path value which is permitted: the empty path. The class should
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/// never allow a syntactically invalid non-empty path name to be assigned.
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/// Empty paths are required in order to indicate an error result in some
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/// situations. If the path is empty, the isValid operation will return
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/// false. All operations will fail if isValid is false. Operations that
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/// change the path will either return false if it would cause a syntactically
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/// invalid path name (in which case the Path object is left unchanged) or
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/// throw an std::string exception indicating the error. The methods are
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/// grouped into four basic categories: Path Accessors (provide information
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/// about the path without accessing disk), Disk Accessors (provide
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/// information about the underlying file or directory), Path Mutators
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/// (change the path information, not the disk), and Disk Mutators (change
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/// the disk file/directory referenced by the path). The Disk Mutator methods
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/// all have the word "disk" embedded in their method name to reinforce the
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/// notion that the operation modifies the file system.
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/// @brief An abstraction for operating system paths.
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/// @name Constructors
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/// Construct a path to the root directory of the file system. The root
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/// directory is a top level directory above which there are no more
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/// directories. For example, on UNIX, the root directory is /. On Windows
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/// it is C:\. Other operating systems may have different notions of
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/// what the root directory is or none at all. In that case, a consistent
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/// default root directory will be used.
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static Path GetRootDirectory();
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/// Construct a path to a unique temporary directory that is created in
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/// a "standard" place for the operating system. The directory is
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/// guaranteed to be created on exit from this function. If the directory
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/// cannot be created, the function will throw an exception.
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/// @returns an invalid path (empty) on error
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/// @param ErrMsg Optional place for an error message if an error occurs
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/// @brief Constrct a path to an new, unique, existing temporary
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static Path GetTemporaryDirectory(std::string* ErrMsg = 0);
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/// Construct a vector of sys::Path that contains the "standard" system
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/// library paths suitable for linking into programs. This function *must*
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/// return the value of LLVM_LIB_SEARCH_PATH as the first item in \p Paths
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/// if that environment variable is set and it references a directory.
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/// @brief Construct a path to the system library directory
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static void GetSystemLibraryPaths(std::vector<sys::Path>& Paths);
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/// Construct a vector of sys::Path that contains the "standard" bitcode
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/// library paths suitable for linking into an llvm program. This function
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/// *must* return the value of LLVM_LIB_SEARCH_PATH as well as the value
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/// of LLVM_LIBDIR. It also must provide the System library paths as
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/// returned by GetSystemLibraryPaths.
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/// @see GetSystemLibraryPaths
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/// @brief Construct a list of directories in which bitcode could be
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static void GetBitcodeLibraryPaths(std::vector<sys::Path>& Paths);
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/// Find the path to a library using its short name. Use the system
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/// dependent library paths to locate the library.
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/// @brief Find a library.
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static Path FindLibrary(std::string& short_name);
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/// Construct a path to the default LLVM configuration directory. The
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/// implementation must ensure that this is a well-known (same on many
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/// systems) directory in which llvm configuration files exist. For
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/// example, on Unix, the /etc/llvm directory has been selected.
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/// @brief Construct a path to the default LLVM configuration directory
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static Path GetLLVMDefaultConfigDir();
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/// Construct a path to the LLVM installed configuration directory. The
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/// implementation must ensure that this refers to the "etc" directory of
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/// the LLVM installation. This is the location where configuration files
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/// will be located for a particular installation of LLVM on a machine.
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/// @brief Construct a path to the LLVM installed configuration directory
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static Path GetLLVMConfigDir();
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/// Construct a path to the current user's home directory. The
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/// implementation must use an operating system specific mechanism for
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/// determining the user's home directory. For example, the environment
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/// variable "HOME" could be used on Unix. If a given operating system
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/// does not have the concept of a user's home directory, this static
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/// constructor must provide the same result as GetRootDirectory.
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/// @brief Construct a path to the current user's "home" directory
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static Path GetUserHomeDirectory();
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/// Construct a path to the current directory for the current process.
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/// @returns The current working directory.
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/// @brief Returns the current working directory.
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static Path GetCurrentDirectory();
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/// Return the suffix commonly used on file names that contain a shared
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/// object, shared archive, or dynamic link library. Such files are
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/// linked at runtime into a process and their code images are shared
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/// between processes.
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/// @returns The dynamic link library suffix for the current platform.
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/// @brief Return the dynamic link library suffix.
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static StringRef GetDLLSuffix();
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/// GetMainExecutable - Return the path to the main executable, given the
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/// value of argv[0] from program startup and the address of main itself.
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static Path GetMainExecutable(const char *argv0, void *MainAddr);
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/// This is one of the very few ways in which a path can be constructed
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/// with a syntactically invalid name. The only *legal* invalid name is an
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/// empty one. Other invalid names are not permitted. Empty paths are
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/// provided so that they can be used to indicate null or error results in
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/// other lib/System functionality.
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/// @brief Construct an empty (and invalid) path.
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Path(const Path &that) : path(that.path) {}
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/// This constructor will accept a char* or std::string as a path. No
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/// checking is done on this path to determine if it is valid. To
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/// determine validity of the path, use the isValid method.
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/// @param p The path to assign.
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/// @brief Construct a Path from a string.
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explicit Path(StringRef p);
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/// This constructor will accept a character range as a path. No checking
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/// is done on this path to determine if it is valid. To determine
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/// validity of the path, use the isValid method.
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/// @param StrStart A pointer to the first character of the path name
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/// @param StrLen The length of the path name at StrStart
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/// @brief Construct a Path from a string.
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Path(const char *StrStart, unsigned StrLen);
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/// Makes a copy of \p that to \p this.
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/// @brief Assignment Operator
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Path &operator=(const Path &that) {
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/// Makes a copy of \p that to \p this.
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/// @param that A StringRef denoting the path
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/// @brief Assignment Operator
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Path &operator=(StringRef that);
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/// Compares \p this Path with \p that Path for equality.
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/// @returns true if \p this and \p that refer to the same thing.
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/// @brief Equality Operator
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bool operator==(const Path &that) const;
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/// Compares \p this Path with \p that Path for inequality.
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/// @returns true if \p this and \p that refer to different things.
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/// @brief Inequality Operator
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bool operator!=(const Path &that) const { return !(*this == that); }
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/// Determines if \p this Path is less than \p that Path. This is required
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/// so that Path objects can be placed into ordered collections (e.g.
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/// std::map). The comparison is done lexicographically as defined by
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/// the std::string::compare method.
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/// @returns true if \p this path is lexicographically less than \p that.
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/// @brief Less Than Operator
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bool operator<(const Path& that) const;
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/// @name Path Accessors
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/// This function will use an operating system specific algorithm to
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/// determine if the current value of \p this is a syntactically valid
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/// path name for the operating system. The path name does not need to
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/// exist, validity is simply syntactical. Empty paths are always invalid.
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/// @returns true iff the path name is syntactically legal for the
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/// host operating system.
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/// @brief Determine if a path is syntactically valid or not.
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bool isValid() const;
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/// This function determines if the contents of the path name are empty.
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/// That is, the path name has a zero length. This does NOT determine if
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/// if the file is empty. To get the length of the file itself, Use the
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/// PathWithStatus::getFileStatus() method and then the getSize() method
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/// on the returned FileStatus object.
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/// @returns true iff the path is empty.
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/// @brief Determines if the path name is empty (invalid).
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bool isEmpty() const { return path.empty(); }
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/// This function returns the last component of the path name. The last
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/// component is the file or directory name occuring after the last
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/// directory separator. If no directory separator is present, the entire
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/// path name is returned (i.e. same as toString).
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/// @returns StringRef containing the last component of the path name.
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/// @brief Returns the last component of the path name.
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StringRef getLast() const;
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/// This function strips off the path and suffix of the file or directory
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/// name and returns just the basename. For example /a/foo.bar would cause
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/// this function to return "foo".
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/// @returns StringRef containing the basename of the path
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/// @brief Get the base name of the path
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StringRef getBasename() const;
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/// This function strips off the suffix of the path beginning with the
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/// path separator ('/' on Unix, '\' on Windows) and returns the result.
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StringRef getDirname() const;
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/// This function strips off the path and basename(up to and
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/// including the last dot) of the file or directory name and
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/// returns just the suffix. For example /a/foo.bar would cause
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/// this function to return "bar".
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/// @returns StringRef containing the suffix of the path
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/// @brief Get the suffix of the path
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StringRef getSuffix() const;
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/// Obtain a 'C' string for the path name.
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/// @returns a 'C' string containing the path name.
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/// @brief Returns the path as a C string.
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const char *c_str() const { return path.c_str(); }
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const std::string &str() const { return path; }
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/// size - Return the length in bytes of this path name.
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size_t size() const { return path.size(); }
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/// empty - Returns true if the path is empty.
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unsigned empty() const { return path.empty(); }
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/// @name Disk Accessors
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/// This function determines if the path name in this object references
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/// the root (top level directory) of the file system. The details of what
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/// is considered the "root" may vary from system to system so this method
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/// will do the necessary checking.
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/// @returns true iff the path name references the root directory.
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/// @brief Determines if the path references the root directory.
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bool isRootDirectory() const;
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/// This function determines if the path name is absolute, as opposed to
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/// @brief Determine if the path is absolute.
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bool isAbsolute() const;
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/// This function determines if the path name is absolute, as opposed to
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/// @brief Determine if the path is absolute.
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static bool isAbsolute(const char *NameStart, unsigned NameLen);
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/// This function opens the file associated with the path name provided by
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/// the Path object and reads its magic number. If the magic number at the
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/// start of the file matches \p magic, true is returned. In all other
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/// cases (file not found, file not accessible, etc.) it returns false.
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/// @returns true if the magic number of the file matches \p magic.
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/// @brief Determine if file has a specific magic number
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bool hasMagicNumber(StringRef magic) const;
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/// This function retrieves the first \p len bytes of the file associated
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/// with \p this. These bytes are returned as the "magic number" in the
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/// \p Magic parameter.
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/// @returns true if the Path is a file and the magic number is retrieved,
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/// @brief Get the file's magic number.
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bool getMagicNumber(std::string& Magic, unsigned len) const;
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/// This function determines if the path name in the object references an
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/// archive file by looking at its magic number.
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/// @returns true if the file starts with the magic number for an archive
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/// @brief Determine if the path references an archive file.
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bool isArchive() const;
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/// This function determines if the path name in the object references an
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/// LLVM Bitcode file by looking at its magic number.
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/// @returns true if the file starts with the magic number for LLVM
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/// @brief Determine if the path references a bitcode file.
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bool isBitcodeFile() const;
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/// This function determines if the path name in the object references a
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/// native Dynamic Library (shared library, shared object) by looking at
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/// the file's magic number. The Path object must reference a file, not a
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/// @return strue if the file starts with the magid number for a native
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/// @brief Determine if the path reference a dynamic library.
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bool isDynamicLibrary() const;
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/// This function determines if the path name references an existing file
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/// or directory in the file system.
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/// @returns true if the pathname references an existing file or
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/// @brief Determines if the path is a file or directory in
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/// This function determines if the path name refences an
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/// existing directory.
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/// @returns true if the pathname references an existing directory.
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/// @brief Determins if the path is a directory in the file system.
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bool isDirectory() const;
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/// This function determines if the path name references a readable file
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/// or directory in the file system. This function checks for
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/// the existence and readability (by the current program) of the file
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/// @returns true if the pathname references a readable file.
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/// @brief Determines if the path is a readable file or directory
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/// in the file system.
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bool canRead() const;
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/// This function determines if the path name references a writable file
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/// or directory in the file system. This function checks for the
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/// existence and writability (by the current program) of the file or
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/// @returns true if the pathname references a writable file.
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/// @brief Determines if the path is a writable file or directory
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/// in the file system.
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bool canWrite() const;
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/// This function checks that what we're trying to work only on a regular file.
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/// Check for things like /dev/null, any block special file,
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/// or other things that aren't "regular" regular files.
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/// @returns true if the file is S_ISREG.
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/// @brief Determines if the file is a regular file
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bool isRegularFile() const;
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/// This function determines if the path name references an executable
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/// file in the file system. This function checks for the existence and
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/// executability (by the current program) of the file.
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/// @returns true if the pathname references an executable file.
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/// @brief Determines if the path is an executable file in the file
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bool canExecute() const;
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/// This function builds a list of paths that are the names of the
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/// files and directories in a directory.
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/// @returns true if an error occurs, true otherwise
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/// @brief Build a list of directory's contents.
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bool getDirectoryContents(
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std::set<Path> &paths, ///< The resulting list of file & directory names
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std::string* ErrMsg ///< Optional place to return an error message.
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/// @name Path Mutators
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/// The path name is cleared and becomes empty. This is an invalid
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/// path name but is the *only* invalid path name. This is provided
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/// so that path objects can be used to indicate the lack of a
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/// valid path being found.
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/// @brief Make the path empty.
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void clear() { path.clear(); }
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/// This method sets the Path object to \p unverified_path. This can fail
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/// if the \p unverified_path does not pass the syntactic checks of the
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/// isValid() method. If verification fails, the Path object remains
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/// unchanged and false is returned. Otherwise true is returned and the
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/// Path object takes on the path value of \p unverified_path
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/// @returns true if the path was set, false otherwise.
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/// @param unverified_path The path to be set in Path object.
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/// @brief Set a full path from a StringRef
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bool set(StringRef unverified_path);
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/// One path component is removed from the Path. If only one component is
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/// present in the path, the Path object becomes empty. If the Path object
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/// is empty, no change is made.
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/// @returns false if the path component could not be removed.
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/// @brief Removes the last directory component of the Path.
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bool eraseComponent();
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/// The \p component is added to the end of the Path if it is a legal
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/// name for the operating system. A directory separator will be added if
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/// @returns false if the path component could not be added.
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/// @brief Appends one path component to the Path.
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bool appendComponent(StringRef component);
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/// A period and the \p suffix are appended to the end of the pathname.
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/// The precondition for this function is that the Path reference a file
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/// name (i.e. isFile() returns true). If the Path is not a file, no
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/// action is taken and the function returns false. If the path would
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/// become invalid for the host operating system, false is returned.
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/// @returns false if the suffix could not be added, true if it was.
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/// @brief Adds a period and the \p suffix to the end of the pathname.
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bool appendSuffix(StringRef suffix);
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/// The suffix of the filename is erased. The suffix begins with and
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/// includes the last . character in the filename after the last directory
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/// separator and extends until the end of the name. If no . character is
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/// after the last directory separator, then the file name is left
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/// unchanged (i.e. it was already without a suffix) but the function
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/// @returns false if there was no suffix to remove, true otherwise.
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/// @brief Remove the suffix from a path name.
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/// The current Path name is made unique in the file system. Upon return,
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/// the Path will have been changed to make a unique file in the file
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/// system or it will not have been changed if the current path name is
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/// @throws std::string if an unrecoverable error occurs.
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/// @brief Make the current path name unique in the file system.
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bool makeUnique( bool reuse_current /*= true*/, std::string* ErrMsg );
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/// The current Path name is made absolute by prepending the
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/// current working directory if necessary.
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/// @name Disk Mutators
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/// This method attempts to make the file referenced by the Path object
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/// available for reading so that the canRead() method will return true.
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/// @brief Make the file readable;
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bool makeReadableOnDisk(std::string* ErrMsg = 0);
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/// This method attempts to make the file referenced by the Path object
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/// available for writing so that the canWrite() method will return true.
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/// @brief Make the file writable;
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bool makeWriteableOnDisk(std::string* ErrMsg = 0);
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/// This method attempts to make the file referenced by the Path object
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/// available for execution so that the canExecute() method will return
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/// @brief Make the file readable;
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bool makeExecutableOnDisk(std::string* ErrMsg = 0);
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/// This method allows the last modified time stamp and permission bits
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/// to be set on the disk object referenced by the Path.
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/// @throws std::string if an error occurs.
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/// @returns true on error.
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/// @brief Set the status information.
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bool setStatusInfoOnDisk(const FileStatus &SI,
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std::string *ErrStr = 0) const;
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/// This method attempts to create a directory in the file system with the
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/// same name as the Path object. The \p create_parents parameter controls
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/// whether intermediate directories are created or not. if \p
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/// create_parents is true, then an attempt will be made to create all
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/// intermediate directories, as needed. If \p create_parents is false,
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/// then only the final directory component of the Path name will be
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/// created. The created directory will have no entries.
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/// @returns true if the directory could not be created, false otherwise
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/// @brief Create the directory this Path refers to.
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bool createDirectoryOnDisk(
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bool create_parents = false, ///< Determines whether non-existent
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///< directory components other than the last one (the "parents")
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///< are created or not.
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std::string* ErrMsg = 0 ///< Optional place to put error messages.
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/// This method attempts to create a file in the file system with the same
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/// name as the Path object. The intermediate directories must all exist
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/// at the time this method is called. Use createDirectoriesOnDisk to
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/// accomplish that. The created file will be empty upon return from this
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/// @returns true if the file could not be created, false otherwise.
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/// @brief Create the file this Path refers to.
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bool createFileOnDisk(
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std::string* ErrMsg = 0 ///< Optional place to put error messages.
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/// This is like createFile except that it creates a temporary file. A
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/// unique temporary file name is generated based on the contents of
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/// \p this before the call. The new name is assigned to \p this and the
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/// file is created. Note that this will both change the Path object
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/// *and* create the corresponding file. This function will ensure that
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/// the newly generated temporary file name is unique in the file system.
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/// @returns true if the file couldn't be created, false otherwise.
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/// @brief Create a unique temporary file
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bool createTemporaryFileOnDisk(
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bool reuse_current = false, ///< When set to true, this parameter
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///< indicates that if the current file name does not exist then
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///< it will be used without modification.
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std::string* ErrMsg = 0 ///< Optional place to put error messages
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/// This method renames the file referenced by \p this as \p newName. The
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/// file referenced by \p this must exist. The file referenced by
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/// \p newName does not need to exist.
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/// @returns true on error, false otherwise
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/// @brief Rename one file as another.
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bool renamePathOnDisk(const Path& newName, std::string* ErrMsg);
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/// This method attempts to destroy the file or directory named by the
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/// last component of the Path. If the Path refers to a directory and the
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/// \p destroy_contents is false, an attempt will be made to remove just
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/// the directory (the final Path component). If \p destroy_contents is
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/// true, an attempt will be made to remove the entire contents of the
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/// directory, recursively. If the Path refers to a file, the
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/// \p destroy_contents parameter is ignored.
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/// @param destroy_contents Indicates whether the contents of a destroyed
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/// @param Err An optional string to receive an error message.
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/// directory should also be destroyed (recursively).
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/// @returns false if the file/directory was destroyed, true on error.
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/// @brief Removes the file or directory from the filesystem.
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bool eraseFromDisk(bool destroy_contents = false,
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std::string *Err = 0) const;
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/// MapInFilePages - This is a low level system API to map in the file
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/// that is currently opened as FD into the current processes' address
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/// space for read only access. This function may return null on failure
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/// or if the system cannot provide the following constraints:
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/// 1) The pages must be valid after the FD is closed, until
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/// UnMapFilePages is called.
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/// 2) Any padding after the end of the file must be zero filled, if
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/// 3) The pages must be contiguous.
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/// This API is not intended for general use, clients should use
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/// MemoryBuffer::getFile instead.
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static const char *MapInFilePages(int FD, uint64_t FileSize);
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/// UnMapFilePages - Free pages mapped into the current process by
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/// This API is not intended for general use, clients should use
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/// MemoryBuffer::getFile instead.
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static void UnMapFilePages(const char *Base, uint64_t FileSize);
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// Our win32 implementation relies on this string being mutable.
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mutable std::string path; ///< Storage for the path name.
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/// This class is identical to Path class except it allows you to obtain the
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/// file status of the Path as well. The reason for the distinction is one of
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/// efficiency. First, the file status requires additional space and the space
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/// is incorporated directly into PathWithStatus without an additional malloc.
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/// Second, obtaining status information is an expensive operation on most
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/// operating systems so we want to be careful and explicity about where we
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/// allow this operation in LLVM.
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/// @brief Path with file status class.
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class PathWithStatus : public Path {
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/// @name Constructors
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/// @brief Default constructor
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PathWithStatus() : Path(), status(), fsIsValid(false) {}
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/// @brief Copy constructor
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PathWithStatus(const PathWithStatus &that)
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: Path(static_cast<const Path&>(that)), status(that.status),
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fsIsValid(that.fsIsValid) {}
619
/// This constructor allows construction from a Path object
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/// @brief Path constructor
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PathWithStatus(const Path &other)
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: Path(other), status(), fsIsValid(false) {}
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/// This constructor will accept a char* or std::string as a path. No
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/// checking is done on this path to determine if it is valid. To
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/// determine validity of the path, use the isValid method.
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/// @brief Construct a Path from a string.
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explicit PathWithStatus(
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StringRef p ///< The path to assign.
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) : Path(p), status(), fsIsValid(false) {}
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/// This constructor will accept a character range as a path. No checking
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/// is done on this path to determine if it is valid. To determine
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/// validity of the path, use the isValid method.
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/// @brief Construct a Path from a string.
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explicit PathWithStatus(
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const char *StrStart, ///< Pointer to the first character of the path
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unsigned StrLen ///< Length of the path.
639
) : Path(StrStart, StrLen), status(), fsIsValid(false) {}
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/// Makes a copy of \p that to \p this.
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/// @brief Assignment Operator
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PathWithStatus &operator=(const PathWithStatus &that) {
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static_cast<Path&>(*this) = static_cast<const Path&>(that);
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status = that.status;
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fsIsValid = that.fsIsValid;
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/// Makes a copy of \p that to \p this.
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/// @brief Assignment Operator
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PathWithStatus &operator=(const Path &that) {
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static_cast<Path&>(*this) = static_cast<const Path&>(that);
664
/// This function returns status information about the file. The type of
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/// path (file or directory) is updated to reflect the actual contents
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/// of the file system.
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/// @returns 0 on failure, with Error explaining why (if non-zero)
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/// @returns a pointer to a FileStatus structure on success.
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/// @brief Get file status.
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const FileStatus *getFileStatus(
671
bool forceUpdate = false, ///< Force an update from the file system
672
std::string *Error = 0 ///< Optional place to return an error msg.
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mutable FileStatus status; ///< Status information.
680
mutable bool fsIsValid; ///< Whether we've obtained it or not
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/// This enumeration delineates the kinds of files that LLVM knows about.
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Unknown_FileType = 0, ///< Unrecognized file
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Bitcode_FileType, ///< Bitcode file
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Archive_FileType, ///< ar style archive file
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ELF_Relocatable_FileType, ///< ELF Relocatable object file
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ELF_Executable_FileType, ///< ELF Executable image
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ELF_SharedObject_FileType, ///< ELF dynamically linked shared lib
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ELF_Core_FileType, ///< ELF core image
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Mach_O_Object_FileType, ///< Mach-O Object file
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Mach_O_Executable_FileType, ///< Mach-O Executable
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Mach_O_FixedVirtualMemorySharedLib_FileType, ///< Mach-O Shared Lib, FVM
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Mach_O_Core_FileType, ///< Mach-O Core File
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Mach_O_PreloadExectuable_FileType, ///< Mach-O Preloaded Executable
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Mach_O_DynamicallyLinkedSharedLib_FileType, ///< Mach-O dynlinked shared lib
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Mach_O_DynamicLinker_FileType, ///< The Mach-O dynamic linker
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Mach_O_Bundle_FileType, ///< Mach-O Bundle file
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Mach_O_DynamicallyLinkedSharedLibStub_FileType, ///< Mach-O Shared lib stub
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COFF_FileType ///< COFF object file or lib
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/// This utility function allows any memory block to be examined in order
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/// to determine its file type.
708
LLVMFileType IdentifyFileType(const char*magic, unsigned length);
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/// This function can be used to copy the file specified by Src to the
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/// file specified by Dest. If an error occurs, Dest is removed.
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/// @returns true if an error occurs, false otherwise
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/// @brief Copy one file to another.
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bool CopyFile(const Path& Dest, const Path& Src, std::string* ErrMsg);
716
/// This is the OS-specific path separator: a colon on Unix or a semicolon
718
extern const char PathSeparator;
added
removed
libclamav/c++/llvm/include/llvm/System/Path.h
