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- /* std::unique_ptr specializations for GDB.
- Copyright (C) 2016-2022 Free Software Foundation, Inc.
- This file is part of GDB.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program 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 Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- #ifndef COMMON_GDB_UNIQUE_PTR_H
- #define COMMON_GDB_UNIQUE_PTR_H
- #include <memory>
- #include <string>
- #include "gdbsupport/gdb-xfree.h"
- namespace gdb
- {
- /* Define gdb::unique_xmalloc_ptr, a std::unique_ptr that manages
- xmalloc'ed memory. */
- /* The deleter for std::unique_xmalloc_ptr. Uses xfree. */
- template <typename T>
- struct xfree_deleter
- {
- void operator() (T *ptr) const { xfree (ptr); }
- };
- /* Same, for arrays. */
- template <typename T>
- struct xfree_deleter<T[]>
- {
- void operator() (T *ptr) const { xfree (ptr); }
- };
- /* Import the standard unique_ptr to our namespace with a custom
- deleter. */
- template<typename T> using unique_xmalloc_ptr
- = std::unique_ptr<T, xfree_deleter<T>>;
- /* A no-op deleter. */
- template<typename T>
- struct noop_deleter
- {
- void operator() (T *ptr) const { }
- };
- } /* namespace gdb */
- /* Dup STR and return a unique_xmalloc_ptr for the result. */
- static inline gdb::unique_xmalloc_ptr<char>
- make_unique_xstrdup (const char *str)
- {
- return gdb::unique_xmalloc_ptr<char> (xstrdup (str));
- }
- /* Dup the first N characters of STR and return a unique_xmalloc_ptr
- for the result. The result is always \0-terminated. */
- static inline gdb::unique_xmalloc_ptr<char>
- make_unique_xstrndup (const char *str, size_t n)
- {
- return gdb::unique_xmalloc_ptr<char> (xstrndup (str, n));
- }
- /* An overload of operator+= fo adding gdb::unique_xmalloc_ptr<char> to a
- std::string. */
- static inline std::string &
- operator+= (std::string &lhs, const gdb::unique_xmalloc_ptr<char> &rhs)
- {
- return lhs += rhs.get ();
- }
- /* An overload of operator+ for adding gdb::unique_xmalloc_ptr<char> to a
- std::string. */
- static inline std::string
- operator+ (const std::string &lhs, const gdb::unique_xmalloc_ptr<char> &rhs)
- {
- return lhs + rhs.get ();
- }
- #endif /* COMMON_GDB_UNIQUE_PTR_H */
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