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//===- fpcmp.cpp - A fuzzy "cmp" that permits floating point noise --------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// fpcmp is a tool that basically works like the 'cmp' tool, except that it can
// tolerate errors due to floating point noise, with the -r and -a options.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileUtilities.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
namespace {
cl::opt<std::string>
File1(cl::Positional, cl::desc("<input file #1>"), cl::Required);
cl::opt<std::string>
File2(cl::Positional, cl::desc("<input file #2>"), cl::Required);
cl::opt<double>
RelTolerance("r", cl::desc("Relative error tolerated"), cl::init(0));
cl::opt<double>
AbsTolerance("a", cl::desc("Absolute error tolerated"), cl::init(0));
}
int main(int argc, char **argv) {
cl::ParseCommandLineOptions(argc, argv);
std::string ErrorMsg;
int DF = DiffFilesWithTolerance(sys::PathWithStatus(File1),
sys::PathWithStatus(File2),
AbsTolerance, RelTolerance, &ErrorMsg);
if (!ErrorMsg.empty())
errs() << argv[0] << ": " << ErrorMsg << "\n";
return DF;
}
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