//===----------------------------------------------------------------------===//
#include "llvm/Support/FileUtilities.h"
-#include "llvm/ADT/OwningPtr.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/raw_ostream.h"
-#include "llvm/Support/system_error.h"
#include <cctype>
#include <cstdlib>
#include <cstring>
+#include <system_error>
using namespace llvm;
static bool isSignedChar(char C) {
/// error occurs, allowing the caller to distinguish between a failed diff and a
/// file system error.
///
-int llvm::DiffFilesWithTolerance(const sys::PathWithStatus &FileA,
- const sys::PathWithStatus &FileB,
+int llvm::DiffFilesWithTolerance(StringRef NameA,
+ StringRef NameB,
double AbsTol, double RelTol,
std::string *Error) {
- const sys::FileStatus *FileAStat = FileA.getFileStatus(false, Error);
- if (!FileAStat)
- return 2;
- const sys::FileStatus *FileBStat = FileB.getFileStatus(false, Error);
- if (!FileBStat)
- return 2;
-
- // Check for zero length files because some systems croak when you try to
- // mmap an empty file.
- size_t A_size = FileAStat->getSize();
- size_t B_size = FileBStat->getSize();
-
- // If they are both zero sized then they're the same
- if (A_size == 0 && B_size == 0)
- return 0;
-
- // If only one of them is zero sized then they can't be the same
- if ((A_size == 0 || B_size == 0)) {
- if (Error)
- *Error = "Files differ: one is zero-sized, the other isn't";
- return 1;
- }
-
// Now its safe to mmap the files into memory because both files
// have a non-zero size.
- OwningPtr<MemoryBuffer> F1;
- if (error_code ec = MemoryBuffer::getFile(FileA.c_str(), F1)) {
+ ErrorOr<std::unique_ptr<MemoryBuffer>> F1OrErr = MemoryBuffer::getFile(NameA);
+ if (std::error_code EC = F1OrErr.getError()) {
if (Error)
- *Error = ec.message();
+ *Error = EC.message();
return 2;
}
- OwningPtr<MemoryBuffer> F2;
- if (error_code ec = MemoryBuffer::getFile(FileB.c_str(), F2)) {
+ MemoryBuffer &F1 = *F1OrErr.get();
+
+ ErrorOr<std::unique_ptr<MemoryBuffer>> F2OrErr = MemoryBuffer::getFile(NameB);
+ if (std::error_code EC = F2OrErr.getError()) {
if (Error)
- *Error = ec.message();
+ *Error = EC.message();
return 2;
}
+ MemoryBuffer &F2 = *F2OrErr.get();
// Okay, now that we opened the files, scan them for the first difference.
- const char *File1Start = F1->getBufferStart();
- const char *File2Start = F2->getBufferStart();
- const char *File1End = F1->getBufferEnd();
- const char *File2End = F2->getBufferEnd();
+ const char *File1Start = F1.getBufferStart();
+ const char *File2Start = F2.getBufferStart();
+ const char *File1End = F1.getBufferEnd();
+ const char *File2End = F2.getBufferEnd();
const char *F1P = File1Start;
const char *F2P = File2Start;
+ uint64_t A_size = F1.getBufferSize();
+ uint64_t B_size = F2.getBufferSize();
// Are the buffers identical? Common case: Handle this efficiently.
if (A_size == B_size &&