C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  this          C++Talk.NET Forum Index -> C++ language (comp.lang.c++) View previous topic :: View next topic   Author Message Priya Mishra Guest Posted: Wed Jun 28, 2006 9:10 am    Post subject: this hi all, Please any one help me out in understanding the "this" pointer in c++, Please let me know the basic idea behind this, with very small example. I am not able to understand by the book language, I know C but some what weak in C++ Thanks Priya Back to top al pacino Guest Posted: Wed Jun 28, 2006 9:10 am    Post subject: Re: this if you 'know' java/python its analogous to 'self'.... or better still follow any good book on c++..chek out earlier topics on 'good' books on c++ Priya Mishra wrote: Quote: hi all, Please any one help me out in understanding the "this" pointer in c++, Please let me know the basic idea behind this, with very small example. I am not able to understand by the book language, I know C but some what weak in C++ Thanks Priya Back to top al pacino Guest Posted: Wed Jun 28, 2006 9:10 am    Post subject: Re: this al pacino wrote: Quote: if you 'know' java/python its analogous to 'self'.... or better still follow any good book on c++..chek out earlier topics on 'good' books on c++ Priya Mishra wrote: hi all, Please any one help me out in understanding the "this" pointer in c++, Please let me know the basic idea behind this, with very small example. I am not able to understand by the book language, I know C but some what weak in C++ Thanks Priya err sorry ppl top posted by mistake.... Back to top Alf P. Steinbach Guest Posted: Wed Jun 28, 2006 9:10 am    Post subject: Re: this * Priya Mishra: Quote: Please any one help me out in understanding the "this" pointer in c++, Please let me know the basic idea behind this, with very small example. I am not able to understand by the book language, I know C but some what weak in C++ Just ignore it. -- A: Because it messes up the order in which people normally read text. Q: Why is it such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail? Back to top Jim Langston Guest Posted: Wed Jun 28, 2006 9:10 am    Post subject: Re: this "Priya Mishra" <mis.priya (AT) gmail (DOT) com> wrote in message news:1151473208.211188.69380 (AT) j72g2000cwa (DOT) googlegroups.com... Quote: hi all, Please any one help me out in understanding the "this" pointer in c++, Please let me know the basic idea behind this, with very small example. I am not able to understand by the book language, I know C but some what weak in C++ Thanks Priya this simply points to the instance of the object that the method is being called on. Usually it is not needed. Sometimes it is (such as to return a pointer to itself). An example may illistrate. #include <iostream> #include <string> class MyClass { public: MyClass* GivePointer() { return this; } }; void main() { MyClass* MyInstance = new MyClass(); MyClass* ObjectPointer = MyInstance->GivePointer(); if ( MyInstance == ObjectPointer ) std::cout << "Equal Pointers" << std::endl; else std::cout << "Not Equal Pointers" << std::endl; std::string wait; std::cin >> wait; } The output of this is: Equal Pointers. Again, usually you do not need to know the pointer of the instance you are calling a method on. Sometimes you do though. If you don't need it, don't worry about it. Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         C++Talk.NET Forum Index -> C++ language (comp.lang.c++) All times are GMT Page 1 of 1   Jump to: Select a forum C/C++----------------C LanguageC Language (Moderated)C++ Language (Moderated)C++ language (comp.lang.c++)C++ language, library and standards Non-English C/C++ Newsgroups----------------C++ (German)C++ (French)  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.