libabigail/include/abg-sptr-utils.h
Dodji Seketeli 4e44ee383c Factorize a no-op deleter for shared pointer
* include/abg-sptr-utils.h (struct noop_deleter): Move this here
	from ...
	* src/abg-comparison.cc (struct noop_deleter): ... here.

Signed-off-by: Dodji Seketeli <dodji@redhat.com>
2014-09-30 18:04:14 +02:00

89 lines
2.4 KiB
C++

// -*- mode: C++ -*-
//
// Copyright (C) 2013 Red Hat, Inc.
//
// This file is part of the GNU Application Binary Interface Generic
// Analysis and Instrumentation Library (libabigail). This library is
// free software; you can redistribute it and/or modify it under the
// terms of the GNU Lesser General Public License as published by the
// Free Software Foundation; either version 3, or (at your option) any
// later version.
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Lesser Public License for more details.
// You should have received a copy of the GNU Lesser General Public
// License along with this program; see the file COPYING-LGPLV3. If
// not, see <http://www.gnu.org/licenses/>.
/// @file
///
/// Utilities to ease the wrapping of C types into std::tr1::shared_ptr
#ifndef __ABG_SPTR_UTILS_H__
#define __ABG_SPTR_UTILS_H__
#include <tr1/memory>
#include <regex.h>
#include <libxml/xmlreader.h>
namespace abigail
{
/// Namespace for the utilities to wrap C types into std::tr1::shared_ptr.
namespace sptr_utils
{
using std::tr1::shared_ptr;
/// This is to be specialized for the diverse C types that needs
/// wrapping in shared_ptr.
///
/// @tparam T the type of the C type to wrap in a shared_ptr.
///
/// @param p a pointer to wrap in a shared_ptr.
///
/// @return then newly shared_ptr<T>
template<class T>
shared_ptr<T>
build_sptr(T* p);
/// A convenience typedef for a shared pointer of xmlTextReader.
typedef shared_ptr<xmlTextReader> reader_sptr;
/// Specialization of sptr_utils::build_sptr for xmlTextReader
template<>
reader_sptr
build_sptr<xmlTextReader>(xmlTextReader *p);
/// A convenience typedef for a shared pointer of xmlChar.
typedef shared_ptr<xmlChar> xml_char_sptr;
/// Specialization of build_str for xmlChar.
template<>
xml_char_sptr build_sptr<xmlChar>(xmlChar *p);
/// A convenience typedef for a shared pointer of regex_t.
typedef shared_ptr<regex_t> regex_t_sptr;
/// Specialization of sptr_utils::build_sptr for regex_t.
template<>
regex_t_sptr
build_sptr<regex_t>(regex_t *p);
/// A deleter for shared pointers that ... doesn't delete the object
/// managed by the shared pointer.
struct noop_deleter
{
template<typename T>
void
operator()(const T*)
{}
};
}// end namespace sptr_utils
}// end namespace abigail
#endif //__ABG_SPTR_UTILS_H__