Comments on: 8.3 — Public vs private access specifiers http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/ Tue, 07 Feb 2012 12:30:29 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: pshetty http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/comment-page-1/#comment-96037 pshetty Sun, 18 Sep 2011 00:46:09 +0000 http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-functions-and-encapsulation/#comment-96037 yes this is true...the tutorial is great alex...but i think there are certain areas where you need to relook, for example what serenity is pointing out yes this is true…the tutorial is great alex…but i think there are certain areas where you need to relook, for example what serenity is pointing out

]]> By: Bob http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/comment-page-1/#comment-91586 Bob Tue, 07 Sep 2010 20:49:54 +0000 http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-functions-and-encapsulation/#comment-91586 No, they're implicitly private. They only become public when you use "public: " before them. No, they’re implicitly private. They only become public when you use “public: ” before them.

]]> By: Bob http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/comment-page-1/#comment-91469 Bob Sun, 05 Sep 2010 19:27:11 +0000 http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-functions-and-encapsulation/#comment-91469 You can't initialize a class member in the class itself. (except static const int). But yes, I think you understand. Although the class wouldn't just have that member alone. Also remember class is spelled lower cased. You can’t initialize a class member in the class itself. (except static const int). But yes, I think you understand. Although the class wouldn’t just have that member alone. Also remember class is spelled lower cased.

]]> By: Pankaj http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/comment-page-1/#comment-77837 Pankaj Thu, 04 Feb 2010 11:24:28 +0000 http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-functions-and-encapsulation/#comment-77837 yes you are right serenity, we can use access specifiers(public,private and protected)and your own constructor, destructor, copy constructor and assignment operator in structs as well. yes you are right serenity, we can use access specifiers(public,private and protected)and your own constructor, destructor, copy constructor and assignment operator in structs as well.

]]> By: sanath http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/comment-page-1/#comment-73658 sanath Sat, 05 Dec 2009 04:16:30 +0000 http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-functions-and-encapsulation/#comment-73658 <pre>By default the class access specifier is Public.</pre> By default the class access specifier is Public. ]]> By: serenity http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/comment-page-1/#comment-73178 serenity Fri, 27 Nov 2009 20:53:48 +0000 http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-functions-and-encapsulation/#comment-73178 "One of the primary differences between classes and structs is that classes can explicitly use access specifiers to restrict who can access members of a class." This is incorrect - *the only* difference is that classes default to private, and structs to public. You can use private: and protected: in a struct, as well as have member functions. They are usually used in different ways, but that's mostly for code clarity, not because you need it. You can create a struct with inheritance, member functions etc. “One of the primary differences between classes and structs is that classes can explicitly use access specifiers to restrict who can access members of a class.”
This is incorrect – *the only* difference is that classes default to private, and structs to public. You can use private: and protected: in a struct, as well as have member functions.

They are usually used in different ways, but that’s mostly for code clarity, not because you need it. You can create a struct with inheritance, member functions etc.

]]> By: Jon http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/comment-page-1/#comment-64902 Jon Fri, 24 Jul 2009 02:01:05 +0000 http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-functions-and-encapsulation/#comment-64902 Hi Alex, I want to clarify to see if I understood your statements correctly...."For example, when writing a string class, it is common to declare a private member named m_nLength that holds the length of the string. If m_nLength were public, anybody could change the length of the string without changing the actual string!" Do you mean... Class Letter { int m_nLength = 14; }; ?????????????? Thank you. Hi Alex,

I want to clarify to see if I understood your statements correctly….”For example, when writing a string class, it is common to declare a private member named m_nLength that holds the length of the string. If m_nLength were public, anybody could change the length of the string without changing the actual string!”

Do you mean…

Class Letter
{
int m_nLength = 14;
};

??????????????

Thank you.

]]> By: Spock http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/comment-page-1/#comment-39407 Spock Tue, 27 Jan 2009 07:11:02 +0000 http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-functions-and-encapsulation/#comment-39407 Another great tutorial. You write really well man. Another great tutorial. You write really well man.

]]> By: buck http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/comment-page-1/#comment-30414 buck Tue, 21 Oct 2008 13:18:23 +0000 http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-functions-and-encapsulation/#comment-30414 compiling code in first example gives me an error - (22) : error C2440: 'return' : cannot convert from 'int' to 'DateStruct'. By adding a semi-colon (;) after closing curly brace of structure, it compiles without error. I am using MS Visual C++. [ Oops, yes, all structs and classes must end with a semicolon. Forgetting it will cause errors on many compilers. -Alex ] compiling code in first example gives me an error – (22) : error C2440: ‘return’ : cannot convert from ‘int’ to ‘DateStruct’. By adding a semi-colon (;) after closing curly brace of structure, it compiles without error. I am using MS Visual C++.

[ Oops, yes, all structs and classes must end with a semicolon. Forgetting it will cause errors on many compilers. -Alex ]

]]> By: Learn C++ - » 8.4 — Access functions and encapsulation http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-specifiers/comment-page-1/#comment-24944 Learn C++ - » 8.4 — Access functions and encapsulation Tue, 26 Aug 2008 04:11:46 +0000 http://www.learncpp.com/cpp-tutorial/83-public-vs-private-access-functions-and-encapsulation/#comment-24944 [...] 2007 Prev/Next Posts « 8.3 — Public vs private access specifiers | Home | 8.5 — Constructors » Tuesday, September 4th, 2007 at 2:21 [...] [...] 2007 Prev/Next Posts « 8.3 — Public vs private access specifiers | Home | 8.5 — Constructors » Tuesday, September 4th, 2007 at 2:21 [...]

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