/usr/include/hphp/util/safe-cast.h is in hhvm-dev 3.11.1+dfsg-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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+----------------------------------------------------------------------+
| HipHop for PHP |
+----------------------------------------------------------------------+
| Copyright (c) 2010-2015 Facebook, Inc. (http://www.facebook.com) |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
*/
#ifndef incl_HPHP_SAFE_CAST_H_
#define incl_HPHP_SAFE_CAST_H_
#include <string>
#include <boost/numeric/conversion/cast.hpp>
#include <folly/Conv.h>
#include "hphp/util/compilation-flags.h"
#include "hphp/util/portability.h"
namespace HPHP {
//////////////////////////////////////////////////////////////////////
ATTRIBUTE_NORETURN
void safe_cast_failure(const std::string&, const char*, const char*);
//////////////////////////////////////////////////////////////////////
/*
* Optionally DEBUG-only wrappers around boost::numeric_cast that convert any
* thrown exceptions to a failed assertion.
*/
template<typename To, typename From>
To always_safe_cast(From val) {
try {
return boost::numeric_cast<To>(val);
} catch (std::bad_cast& bce) {
safe_cast_failure(
folly::to<std::string>(val),
// The function is always safe_cast, but will indicate which
// types were involved.
__PRETTY_FUNCTION__,
bce.what()
);
}
}
template<typename To, typename From>
To safe_cast(From val) {
return debug ? always_safe_cast<To>(val) : static_cast<To>(val);
}
//////////////////////////////////////////////////////////////////////
}
#endif
|