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/********************* */
/*! \file utility.cpp
** \verbatim
** Top contributors (to current version):
** Andres Noetzli
** This file is part of the CVC4 project.
** Copyright (c) 2009-2020 by the authors listed in the file AUTHORS
** in the top-level source directory and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief Some standard STL-related utility functions for CVC4
**
** Some standard STL-related utility functions for CVC4.
**/
#include "util/utility.h"
#include <unistd.h>
#include <cstdlib>
#include "base/check.h"
namespace CVC4 {
std::unique_ptr<std::fstream> openTmpFile(std::string* pattern)
{
char* tmpDir = getenv("TMPDIR");
if (tmpDir != nullptr)
{
*pattern = std::string(tmpDir) + "/" + *pattern;
}
else
{
*pattern = "/tmp/" + *pattern;
}
// Note: With C++17, we can avoid creating a copy using std::string::data().
char* tmpName = new char[pattern->size() + 1];
pattern->copy(tmpName, pattern->size());
tmpName[pattern->size()] = '\0';
int r = mkstemp(tmpName);
if (r == -1)
{
CVC4_FATAL() << "Could not create temporary file " << *pattern;
}
std::unique_ptr<std::fstream> tmpStream(new std::fstream(tmpName));
close(r);
*pattern = std::string(tmpName);
delete[] tmpName;
return tmpStream;
}
} // namespace CVC4
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