Keep only base/extractor.[cc|h].

third_party/breakpad/src/processor/scoped_ptr.h

-//  (C) Copyright Greg Colvin and Beman Dawes 1998, 1999.
-//  Copyright (c) 2001, 2002 Peter Dimov
-//
-//  Permission to copy, use, modify, sell and distribute this software
-//  is granted provided this copyright notice appears in all copies.
-//  This software is provided "as is" without express or implied
-//  warranty, and with no claim as to its suitability for any purpose.
-//
-//  See http://www.boost.org/libs/smart_ptr/scoped_ptr.htm for documentation.
-//
-
-//  scoped_ptr mimics a built-in pointer except that it guarantees deletion
-//  of the object pointed to, either on destruction of the scoped_ptr or via
-//  an explicit reset(). scoped_ptr is a simple solution for simple needs;
-//  use shared_ptr or std::auto_ptr if your needs are more complex.
-
-//  *** NOTE ***
-//  If your scoped_ptr is a class member of class FOO pointing to a 
-//  forward declared type BAR (as shown below), then you MUST use a non-inlined 
-//  version of the destructor.  The destructor of a scoped_ptr (called from
-//  FOO's destructor) must have a complete definition of BAR in order to 
-//  destroy it.  Example:
-//
-//  -- foo.h --
-//  class BAR;
-//
-//  class FOO {
-//   public:
-//    FOO();
-//    ~FOO();  // Required for sources that instantiate class FOO to compile!
-//    
-//   private:
-//    scoped_ptr<BAR> bar_;
-//  };
-//
-//  -- foo.cc --
-//  #include "foo.h"
-//  FOO::~FOO() {} // Empty, but must be non-inlined to FOO's class definition.
-
-//  scoped_ptr_malloc added by Google
-//  When one of these goes out of scope, instead of doing a delete or
-//  delete[], it calls free().  scoped_ptr_malloc<char> is likely to see
-//  much more use than any other specializations.
-
-//  release() added by Google
-//  Use this to conditionally transfer ownership of a heap-allocated object
-//  to the caller, usually on method success.
-
-#ifndef PROCESSOR_SCOPED_PTR_H__
-#define PROCESSOR_SCOPED_PTR_H__
-
-#include <cstddef>            // for std::ptrdiff_t
-#include <assert.h>           // for assert
-#include <stdlib.h>           // for free() decl
-
-namespace google_breakpad {
-
-template <typename T>
-class scoped_ptr {
- private:
-
-  T* ptr;
-
-  scoped_ptr(scoped_ptr const &);
-  scoped_ptr & operator=(scoped_ptr const &);
-
- public:
-
-  typedef T element_type;
-
-  explicit scoped_ptr(T* p = 0): ptr(p) {}
-
-  ~scoped_ptr() {
-    typedef char type_must_be_complete[sizeof(T)];
-    delete ptr;
-  }
-
-  void reset(T* p = 0) {
-    typedef char type_must_be_complete[sizeof(T)];
-
-    if (ptr != p) {
-      delete ptr;
-      ptr = p;
-    }
-  }
-
-  T& operator*() const {
-    assert(ptr != 0);
-    return *ptr;
-  }
-
-  T* operator->() const  {
-    assert(ptr != 0);
-    return ptr;
-  }
-
-  bool operator==(T* p) const {
-    return ptr == p;
-  }
-
-  bool operator!=(T* p) const {
-    return ptr != p;
-  }
-
-  T* get() const  {
-    return ptr;
-  }
-
-  void swap(scoped_ptr & b) {
-    T* tmp = b.ptr;
-    b.ptr = ptr;
-    ptr = tmp;
-  }
-
-  T* release() {
-    T* tmp = ptr;
-    ptr = 0;
-    return tmp;
-  }
-
- private:
-
-  // no reason to use these: each scoped_ptr should have its own object
-  template <typename U> bool operator==(scoped_ptr<U> const& p) const;
-  template <typename U> bool operator!=(scoped_ptr<U> const& p) const;
-};
-
-template<typename T> inline
-void swap(scoped_ptr<T>& a, scoped_ptr<T>& b) {
-  a.swap(b);
-}
-
-template<typename T> inline
-bool operator==(T* p, const scoped_ptr<T>& b) {
-  return p == b.get();
-}
-
-template<typename T> inline
-bool operator!=(T* p, const scoped_ptr<T>& b) {
-  return p != b.get();
-}
-
-//  scoped_array extends scoped_ptr to arrays. Deletion of the array pointed to
-//  is guaranteed, either on destruction of the scoped_array or via an explicit
-//  reset(). Use shared_array or std::vector if your needs are more complex.
-
-template<typename T>
-class scoped_array {
- private:
-
-  T* ptr;
-
-  scoped_array(scoped_array const &);
-  scoped_array & operator=(scoped_array const &);
-
- public:
-
-  typedef T element_type;
-
-  explicit scoped_array(T* p = 0) : ptr(p) {}
-
-  ~scoped_array() {
-    typedef char type_must_be_complete[sizeof(T)];
-    delete[] ptr;
-  }
-
-  void reset(T* p = 0) {
-    typedef char type_must_be_complete[sizeof(T)];
-
-    if (ptr != p) {
-      delete [] ptr;
-      ptr = p;
-    }
-  }
-
-  T& operator[](std::ptrdiff_t i) const {
-    assert(ptr != 0);
-    assert(i >= 0);
-    return ptr[i];
-  }
-
-  bool operator==(T* p) const {
-    return ptr == p;
-  }
-
-  bool operator!=(T* p) const {
-    return ptr != p;
-  }
-
-  T* get() const {
-    return ptr;
-  }
-
-  void swap(scoped_array & b) {
-    T* tmp = b.ptr;
-    b.ptr = ptr;
-    ptr = tmp;
-  }
-
-  T* release() {
-    T* tmp = ptr;
-    ptr = 0;
-    return tmp;
-  }
-
- private:
-
-  // no reason to use these: each scoped_array should have its own object
-  template <typename U> bool operator==(scoped_array<U> const& p) const;
-  template <typename U> bool operator!=(scoped_array<U> const& p) const;
-};
-
-template<class T> inline
-void swap(scoped_array<T>& a, scoped_array<T>& b) {
-  a.swap(b);
-}
-
-template<typename T> inline
-bool operator==(T* p, const scoped_array<T>& b) {
-  return p == b.get();
-}
-
-template<typename T> inline
-bool operator!=(T* p, const scoped_array<T>& b) {
-  return p != b.get();
-}
-
-
-// This class wraps the c library function free() in a class that can be
-// passed as a template argument to scoped_ptr_malloc below.
-class ScopedPtrMallocFree {
- public:
-  inline void operator()(void* x) const {
-    free(x);
-  }
-};
-
-// scoped_ptr_malloc<> is similar to scoped_ptr<>, but it accepts a
-// second template argument, the functor used to free the object.
-
-template<typename T, typename FreeProc = ScopedPtrMallocFree>
-class scoped_ptr_malloc {
- private:
-
-  T* ptr;
-
-  scoped_ptr_malloc(scoped_ptr_malloc const &);
-  scoped_ptr_malloc & operator=(scoped_ptr_malloc const &);
-
- public:
-
-  typedef T element_type;
-
-  explicit scoped_ptr_malloc(T* p = 0): ptr(p) {}
-
-  ~scoped_ptr_malloc() {
-    typedef char type_must_be_complete[sizeof(T)];
-    free_((void*) ptr);
-  }
-
-  void reset(T* p = 0) {
-    typedef char type_must_be_complete[sizeof(T)];
-
-    if (ptr != p) {
-      free_((void*) ptr);
-      ptr = p;
-    }
-  }
-
-  T& operator*() const {
-    assert(ptr != 0);
-    return *ptr;
-  }
-
-  T* operator->() const {
-    assert(ptr != 0);
-    return ptr;
-  }
-
-  bool operator==(T* p) const {
-    return ptr == p;
-  }
-
-  bool operator!=(T* p) const {
-    return ptr != p;
-  }
-
-  T* get() const {
-    return ptr;
-  }
-
-  void swap(scoped_ptr_malloc & b) {
-    T* tmp = b.ptr;
-    b.ptr = ptr;
-    ptr = tmp;
-  }
-
-  T* release() {
-    T* tmp = ptr;
-    ptr = 0;
-    return tmp;
-  }
-
- private:
-
-  // no reason to use these: each scoped_ptr_malloc should have its own object
-  template <typename U, typename GP>
-  bool operator==(scoped_ptr_malloc<U, GP> const& p) const;
-  template <typename U, typename GP>
-  bool operator!=(scoped_ptr_malloc<U, GP> const& p) const;
-
-  static FreeProc const free_;
-};
-
-template<typename T, typename FP>
-FP const scoped_ptr_malloc<T,FP>::free_ = FP();
-
-template<typename T, typename FP> inline
-void swap(scoped_ptr_malloc<T,FP>& a, scoped_ptr_malloc<T,FP>& b) {
-  a.swap(b);
-}
-
-template<typename T, typename FP> inline
-bool operator==(T* p, const scoped_ptr_malloc<T,FP>& b) {
-  return p == b.get();
-}
-
-template<typename T, typename FP> inline
-bool operator!=(T* p, const scoped_ptr_malloc<T,FP>& b) {
-  return p != b.get();
-}
-
-}  // namespace google_breakpad
-
-#endif  // PROCESSOR_SCOPED_PTR_H__