| 1 | //===- fpcmp.cpp - A fuzzy "cmp" that permits floating point noise --------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // fpcmp is a tool that basically works like the 'cmp' tool, except that it can |
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| 10 | // tolerate errors due to floating point noise, with the -r and -a options. |
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| 11 | // |
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| 12 | //===----------------------------------------------------------------------===// |
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| 13 | |
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| 14 | #include "llvm/Support/CommandLine.h" |
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| 15 | #include "llvm/Support/FileUtilities.h" |
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| 16 | #include "llvm/Support/raw_ostream.h" |
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| 17 | using namespace llvm; |
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| 18 | |
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| 19 | namespace { |
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| 20 | cl::opt<std::string> |
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| 21 | File1(cl::Positional, cl::desc("<input file #1>" ), cl::Required); |
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| 22 | cl::opt<std::string> |
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| 23 | File2(cl::Positional, cl::desc("<input file #2>" ), cl::Required); |
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| 24 | |
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| 25 | cl::opt<double> |
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| 26 | RelTolerance("r" , cl::desc("Relative error tolerated" ), cl::init(Val: 0)); |
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| 27 | cl::opt<double> |
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| 28 | AbsTolerance("a" , cl::desc("Absolute error tolerated" ), cl::init(Val: 0)); |
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| 29 | } |
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| 30 | |
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| 31 | int main(int argc, char **argv) { |
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| 32 | cl::ParseCommandLineOptions(argc, argv); |
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| 33 | |
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| 34 | std::string ErrorMsg; |
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| 35 | int DF = DiffFilesWithTolerance(FileA: File1, FileB: File2, AbsTol: AbsTolerance, RelTol: RelTolerance, |
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| 36 | Error: &ErrorMsg); |
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| 37 | if (!ErrorMsg.empty()) |
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| 38 | errs() << argv[0] << ": " << ErrorMsg << "\n" ; |
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| 39 | return DF; |
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| 40 | } |
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| 41 | |
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| 42 | |
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