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New method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19765 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -28,6 +28,19 @@ namespace llvm {
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bool DiffFiles(const std::string &FileA, const std::string &FileB,
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std::string *Error = 0);
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/// DiffFilesWithTolerance - Compare the two files specified, returning 0 if the
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/// files match, 1 if they are different, and 2 if there is a file error. This
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/// function differs from DiffFiles in that you can specify an absolete and
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/// relative FP error that is allowed to exist. If you specify a string to fill
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/// in for the error option, it will set the string to an error message if an
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/// error occurs, allowing the caller to distinguish between a failed diff and a
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/// file system error.
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///
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int DiffFilesWithTolerance(const std::string &FileA, const std::string &FileB,
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double AbsTol, double RelTol,
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std::string *Error = 0);
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/// MoveFileOverIfUpdated - If the file specified by New is different than Old,
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/// or if Old does not exist, move the New file over the Old file. Otherwise,
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/// remove the New file.
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