I'd like to now if this smart pointer class if thread-safe:
Code:
// COPYRIGHT CMDR DOUGLAS I. PEREIRA 07/10/06
// ALL UNAUTHORIZED THIRD PARTY USE IS PROHIBITED
// I HAVE WORKED VERY HARD AND HAVE SPENT HOURS OF
// TIME DEVELOPING THIS. DO NOT COPY IT OR I WILL SUE YOU
// *************** *************** *************** ***************
#pragma once
class SmrtPtrDB
{
public:
SmrtPtrDB(int status=1):num(s tatus){}
SmrtPtrDB(const SmrtPtrDB& rhs):num(rhs.nu m){}
~SmrtPtrDB(){}
void add(){num++;}
void sub(){num--;}
int status(){return num;}
private:
int num;
};
// COPYRIGHT CMDR DOUGLAS I. PEREIRA 07/10/06
// ALL UNAUTHORIZED THIRD PARTY USE IS PROHIBITED
// I HAVE WORKED VERY HARD AND HAVE SPENT HOURS OF
// TIME DEVELOPING THIS. DO NOT COPY IT OR I WILL SUE YOU
// *************** *************** *************** ***************
#pragma once
#include <iostream>
#include <algorithm>
#include "SmrtPtrDB. hpp"
using std::cout;
using std::endl;
class NullPtr{};
template<class T>
class SmrtPtr
{
public:
explicit SmrtPtr<T>(T* obj=0):ptr(obj) ,DataBase(new SmrtPtrDB){}
SmrtPtr<T>(cons t SmrtPtr<T>& rhs):ptr(rhs.pt r),DataBase(new
SmrtPtrDB(rhs.D ataBase->status()))
{DataBase->add();}
~SmrtPtr<T>()
{
DataBase->sub();
if(DataBase->status()==0)
{delete ptr; delete DataBase; cout << "Deleted." << endl;}
else {delete DataBase; cout << "Out of scope. " << endl;}
}
void operator=(T* val)
{
SmrtPtr<Ttemp(v al);
swap(temp);
}
SmrtPtr<T>& operator=(const SmrtPtr<T>& rhs)
{
SmrtPtr<Ttemp(r hs);
swap(temp);
return *this;
}
bool operator==(cons t SmrtPtr<T>& rhs)const{if(pt r==rhs.ptr)retu rn
true;else return false;}
bool operator!=(cons t SmrtPtr<T>& rhs)const{if(pt r!=rhs.ptr)retu rn
true;else return false;}
bool operator<=(cons t SmrtPtr<T>& rhs)const{if(pt r<=rhs.ptr)retu rn
true;else return false;}
bool operator>=(cons t SmrtPtr<T>& rhs)const{if(pt r>=rhs.ptr)retu rn
true;else return false;}
int status(){return DataBase->status();}
T& operator*()cons t{if(ptr==0)thr ow NullPtr();else return *ptr;}
T* operator->()const{if(ptr ==0)throw NullPtr();else return ptr;}
operator T*()const{if(pt r==0)throw NullPtr();else return ptr;}
private:
void swap(SmrtPtr<T> & rhs)
{
std::swap(DataB ase,rhs.DataBas e);
std::swap(ptr,r hs.ptr);
}
mutable SmrtPtrDB* DataBase;
T* ptr;
};
Is this the right way to implement ref-counting? Any input would be
greatly appreciated. Thanks!!!!!
Aug 9 '06
28 2832
Default User wrote:
red floyd wrote:
Protoman wrote:
Diego Martins wrote:
>
// COPYRIGHT CMDR DOUGLAS I. PEREIRA 07/10/06
[redacted]
[redacted]
There's ALWAYS a possibility. And besides, I'm a HS Freshman. And I
REALLY need to take some CE and Advanced C++ classes at CSULB,
don't I?
>
But wait! I thought you were a rocket scientist! And your copyright
notice indicates you're a Commander in some sort of Naval service!
I killfiled this Protoman twit from a previous "visit" to the
newsgroup.
Brian
That just a title my friends apply to me. I do plan on going to NROTC
when I'm in college. Let's just get back OT.
Protoman wrote:
Default User wrote:
red floyd wrote:
Protoman wrote:
Diego Martins wrote:
// COPYRIGHT CMDR DOUGLAS I. PEREIRA 07/10/06
[redacted]
[redacted]
There's ALWAYS a possibility. And besides, I'm a HS Freshman. And I
REALLY need to take some CE and Advanced C++ classes at CSULB,
don't I?
>
But wait! I thought you were a rocket scientist! And your copyright
notice indicates you're a Commander in some sort of Naval service!
I killfiled this Protoman twit from a previous "visit" to the
newsgroup.
Brian
That just a title my friends apply to me. I do plan on going to NROTC
when I'm in college. Let's just get back OT.
I would like to point out that you are impersonating a military
officer, and that I should report you to the Naval Criminal
Investigative Service. Don't copyright anything with a fake name,
unless it is a business and you have filed the proper paperwork
Protoman wrote:
I'd like to now if this smart pointer class if thread-safe:
Code:
// COPYRIGHT CMDR DOUGLAS I. PEREIRA 07/10/06
// ALL UNAUTHORIZED THIRD PARTY USE IS PROHIBITED
// I HAVE WORKED VERY HARD AND HAVE SPENT HOURS OF
// TIME DEVELOPING THIS. DO NOT COPY IT OR I WILL SUE YOU
// *************** *************** *************** ***************
I would also like to point out that if you do not register your
copyright with the US Copyright Office you cannot sue over copyright.
If you would liek attorney's fees paid you must do it within 3 months
of publication, and the evidence will be considered prima facie only if
you register within 5 years of publication.
cdcarter wrote:
Protoman wrote:
Default User wrote:
red floyd wrote:
>
Protoman wrote:
Diego Martins wrote:
>
// COPYRIGHT CMDR DOUGLAS I. PEREIRA 07/10/06
[redacted]
[redacted]
There's ALWAYS a possibility. And besides, I'm a HS Freshman. And I
REALLY need to take some CE and Advanced C++ classes at CSULB,
don't I?
>
But wait! I thought you were a rocket scientist! And your copyright
notice indicates you're a Commander in some sort of Naval service!
>
I killfiled this Protoman twit from a previous "visit" to the
newsgroup.
>
>
>
>
Brian
That just a title my friends apply to me. I do plan on going to NROTC
when I'm in college. Let's just get back OT.
I would like to point out that you are impersonating a military
officer, and that I should report you to the Naval Criminal
Investigative Service. Don't copyright anything with a fake name,
unless it is a business and you have filed the proper paperwork
Never said I was a *Naval* Commander, now did I? There ARE other ways
you can get the title of "Commander" , like there are other ways of
getting the title "Colonel".
In article <11************ **********@74g2 000cwt.googlegr oups.com>, cd******@gmail. com says...
[ ... ]
I would also like to point out that if you do not register your
copyright with the US Copyright Office you cannot sue over copyright.
OT, but yes, you can sue for infringement of an unregistered copyright.
You can't be awarded damages if you win, but you can get a court order
for the infringing party to stop. Of course, given that this newsgroup
is distributed internationally , there are undoubtedly quite a few
participants for whom the rules are entirely different, and for whom the
US copyright office is of little or no consequence.
--
Later,
Jerry.
The universe is a figment of its own imagination.
Never said I was a *Naval* Commander, now did I? There ARE other ways
you can get the title of "Commander" , like there are other ways of
getting the title "Colonel".
Klingon Commander? au************* *@gmail.com wrote:
Never said I was a *Naval* Commander, now did I? There ARE other ways
you can get the title of "Commander" , like there are other ways of
getting the title "Colonel".
Klingon Commander?
Sure, why not? I like Star Trek: TNG.
Protoman wrote:
au************* *@gmail.com wrote:
Never said I was a *Naval* Commander, now did I? There ARE other ways
you can get the title of "Commander" , like there are other ways of
getting the title "Colonel".
Klingon Commander?
Sure, why not? I like Star Trek: TNG.
You are the commander of the gay pride
Diego Martins wrote:
Protoman wrote:
au************* *@gmail.com wrote:
Never said I was a *Naval* Commander, now did I? There ARE other ways
you can get the title of "Commander" , like there are other ways of
getting the title "Colonel".
>
>
Klingon Commander?
Sure, why not? I like Star Trek: TNG.
You are the commander of the gay pride
Please stop this nonsense. Comment on the code, not the person.
Cheers! --M This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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