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Make DiffFilesWithTolerance take sys::Path's instead of std::strings

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Delete dead functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19771 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-01-23 03:31:02 +00:00
parent f61c001673
commit cc1b90b0e7
1 changed files with 9 additions and 55 deletions
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64
lib/Support/FileUtilities.cpp
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@ -17,57 +17,8 @@
#include "llvm/System/MappedFile.h"
#include "llvm/ADT/StringExtras.h"
#include <cmath>
#include <fstream>
#include <iostream>
using namespace llvm;
/// 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
/// occurs, allowing the caller to distinguish between a failed diff and a file
/// system error.
///
bool llvm::DiffFiles(const std::string &FileA, const std::string &FileB,
std::string *Error) {
std::ios::openmode io_mode = std::ios::in | std::ios::binary;
std::ifstream FileAStream(FileA.c_str(), io_mode);
if (!FileAStream) {
if (Error) *Error = "Couldn't open file '" + FileA + "'";
return true;
}
std::ifstream FileBStream(FileB.c_str(), io_mode);
if (!FileBStream) {
if (Error) *Error = "Couldn't open file '" + FileB + "'";
return true;
}
// Compare the two files...
int C1, C2;
do {
C1 = FileAStream.get();
C2 = FileBStream.get();
if (C1 != C2) return true;
} while (C1 != EOF);
return false;
}
/// MoveFileOverIfUpdated - If the file specified by New is different than Old,
/// or if Old does not exist, move the New file over the Old file. Otherwise,
/// remove the New file.
///
void llvm::MoveFileOverIfUpdated(const std::string &New,
const std::string &Old) {
if (DiffFiles(New, Old)) {
if (std::rename(New.c_str(), Old.c_str()))
std::cerr << "Error renaming '" << New << "' to '" << Old << "'!\n";
} else {
std::remove(New.c_str());
}
}
static bool isNumberChar(char C) {
switch (C) {
case '0': case '1': case '2': case '3': case '4':
@ -162,14 +113,14 @@ static void PadFileIfNeeded(char *&FileStart, char *&FileEnd, char *&FP) {
/// error occurs, allowing the caller to distinguish between a failed diff and a
/// file system error.
///
int llvm::DiffFilesWithTolerance(const std::string &FileA,
const std::string &FileB,
int llvm::DiffFilesWithTolerance(const sys::Path &FileA,
const sys::Path &FileB,
double AbsTol, double RelTol,
std::string *Error) {
try {
// Map in the files into memory.
sys::MappedFile F1((sys::Path(FileA)));
sys::MappedFile F2((sys::Path(FileB)));
sys::MappedFile F1(FileA);
sys::MappedFile F2(FileB);
F1.map();
F2.map();
@ -188,6 +139,9 @@ int llvm::DiffFilesWithTolerance(const std::string &FileA,
// Common case: identifical files.
if (F1P == File1End && F2P == File2End) return 0;
if (AbsTol == 0 && RelTol == 0)
return 1; // Files different!
char *OrigFile1Start = File1Start;
char *OrigFile2Start = File2Start;
@ -239,9 +193,9 @@ int llvm::DiffFilesWithTolerance(const std::string &FileA,
}
if (OrigFile1Start != File1Start)
delete[] File1Start-1; // Back up past null byte
delete[] (File1Start-1); // Back up past null byte
if (OrigFile2Start != File2Start)
delete[] File2Start-1; // Back up past null byte
delete[] (File2Start-1); // Back up past null byte
return CompareFailed;
} catch (const std::string &Msg) {
if (Error) *Error = Msg;