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For PR351:Remove the file type checking methods (now in sys::Path)

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18846 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-12-13 02:57:41 +00:00
parent ca76740633
commit d99eaa3c1f
2 changed files with 5 additions and 59 deletions
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10
include/llvm/Support/FileUtilities.h
View File

@ -22,27 +22,27 @@ namespace llvm {
/// CheckMagic - Returns true IFF the file named FN begins with Magic. FN must
/// name a readable file.
///
bool CheckMagic (const std::string &FN, const std::string &Magic);
//bool CheckMagic (const std::string &FN, const std::string &Magic);
/// IsArchive - Returns true IFF the file named FN appears to be a "ar" library
/// archive. The file named FN must exist.
///
bool IsArchive (const std::string &FN);
//bool IsArchive (const std::string &FN);
/// IsBytecode - Returns true IFF the file named FN appears to be an LLVM
/// bytecode file. The file named FN must exist.
///
bool IsBytecode (const std::string &FN);
//bool IsBytecode (const std::string &FN);
/// IsSharedObject - Returns trus IFF the file named FN appears to be a shared
/// object with an ELF header. The file named FN must exist.
///
bool IsSharedObject(const std::string &FN);
//bool IsSharedObject(const std::string &FN);
/// FileOpenable - Returns true IFF Filename names an existing regular file
/// which we can successfully open.
///
bool FileOpenable(const std::string &Filename);
//bool FileOpenable(const std::string &Filename);
/// DiffFiles - Compare the two files specified, returning true if they are
/// different or if there is a file error. If you specify a string to fill in

54
lib/Support/FileUtilities.cpp
View File

@ -26,60 +26,6 @@
#include <iostream>
using namespace llvm;
/// CheckMagic - Returns true IFF the file named FN begins with Magic. FN must
/// name a readable file.
///
bool llvm::CheckMagic(const std::string &FN, const std::string &Magic) {
char *buf = (char*)alloca(1 + Magic.size());
std::ifstream f(FN.c_str());
f.read(buf, Magic.size());
buf[Magic.size()] = '\0';
return Magic == buf;
}
/// IsArchive - Returns true IFF the file named FN appears to be a "ar" library
/// archive. The file named FN must exist.
///
bool llvm::IsArchive(const std::string &FN) {
// Inspect the beginning of the file to see if it contains the "ar"
// library archive format magic string.
return CheckMagic(FN, "!<arch>\012");
}
/// IsBytecode - Returns true IFF the file named FN appears to be an LLVM
/// bytecode file. The file named FN must exist.
///
bool llvm::IsBytecode(const std::string &FN) {
// Inspect the beginning of the file to see if it contains the LLVM
// bytecode format magic string.
return CheckMagic(FN, "llvm") || CheckMagic(FN, "llvc");
}
/// IsSharedObject - Returns trus IFF the file named FN appears to be a shared
/// object with an ELF header. The file named FN must exist.
///
bool llvm::IsSharedObject(const std::string &FN) {
// Inspect the beginning of the file to see if it contains the ELF shared
// object magic string.
static const char elfMagic[] = { 0x7f, 'E', 'L', 'F', '\0' };
return CheckMagic(FN, elfMagic);
}
/// FileOpenable - Returns true IFF Filename names an existing regular
/// file which we can successfully open.
///
bool llvm::FileOpenable(const std::string &Filename) {
struct stat s;
if (stat (Filename.c_str (), &s) == -1)
return false; // Cannot stat file
if (!S_ISREG (s.st_mode))
return false; // File is not a regular file
std::ifstream FileStream (Filename.c_str ());
if (!FileStream)
return false; // File is not openable
return true;
}
/// DiffFiles - Compare the two files specified, returning true if they are
/// different or if there is a file error. If you specify a string to fill in
/// for the error option, it will set the string to an error message if an error