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/******************************************************************************
* Top contributors (to current version):
* Andres Noetzli
*
* This file is part of the cvc5 project.
*
* Copyright (c) 2009-2021 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.
* ****************************************************************************
*
* Some standard STL-related utility functions for CVC4.
*/
#include "util/utility.h"
#include <unistd.h>
#include <cstdlib>
#include "base/check.h"
namespace cvc5 {
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)
{
CVC5_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 cvc5
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