Comments on: 14.3 — Template classes http://www.learncpp.com/cpp-tutorial/143-template-classes/ Tue, 07 Feb 2012 12:30:29 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Pradeep http://www.learncpp.com/cpp-tutorial/143-template-classes/comment-page-1/#comment-85050 Pradeep Thu, 20 May 2010 08:40:48 +0000 http://www.learncpp.com/?p=206#comment-85050 Hi Alex, The template version you provied if instatiated by a 'char' it may cause problems becaue incounstructor you gave "new T[length] but for char it needs 'new T[length+1]' ( beacues of ""). So changing the consturctor to the following may be appropriate. <pre> if(typeid(m_ptData) == typeid(char*)) m_ptData = new T[nLength+1]; else m_ptData = new T[nLength]; </pre> Also we need to include typeid determine sthe data type at runtime. What do you say? Hi Alex,

The template version you provied if instatiated by a ‘char’ it may cause problems becaue incounstructor you gave “new T[length] but for char it needs ‘new T[length+1]‘ ( beacues of “”).

So changing the consturctor to the following may be appropriate.

if(typeid(m_ptData) == typeid(char*))
       m_ptData = new T[nLength+1];
     else
       m_ptData = new T[nLength];

Also we need to include
typeid determine sthe data type at runtime.

What do you say?

]]> By: Tobi http://www.learncpp.com/cpp-tutorial/143-template-classes/comment-page-1/#comment-73674 Tobi Sat, 05 Dec 2009 12:07:10 +0000 http://www.learncpp.com/?p=206#comment-73674 <pre>nCount----;)</pre> should be <pre>nCount--)</pre>? nCount----;)

should be 

nCount--)

?

]]> By: Gilles http://www.learncpp.com/cpp-tutorial/143-template-classes/comment-page-1/#comment-30461 Gilles Tue, 21 Oct 2008 19:54:39 +0000 http://www.learncpp.com/?p=206#comment-30461 T Array::GetLength() shall return an int instead of a T [ Fixed! Thanks. -Alex ] T Array::GetLength() shall return an int instead of a T

[ Fixed! Thanks. -Alex ]

]]> By: Vinitha Krishnamurthy http://www.learncpp.com/cpp-tutorial/143-template-classes/comment-page-1/#comment-29899 Vinitha Krishnamurthy Tue, 14 Oct 2008 02:38:15 +0000 http://www.learncpp.com/?p=206#comment-29899 Alex, I think, IntArray class uses composition and not aggregation. It is a value container class and not a reference container class. Vinitha [ I am constantly amazed by the attention to detail that my readers possess. Very nice catch, and I appreciate you bringing it to my attention. -Alex ] Alex,

I think, IntArray class uses composition and not aggregation. It is a value container class and not a reference container class.

Vinitha

[ I am constantly amazed by the attention to detail that my readers possess. Very nice catch, and I appreciate you bringing it to my attention. -Alex ]

]]> By: Learn C++ - » 14.4 — Expression parameters and template specialization http://www.learncpp.com/cpp-tutorial/143-template-classes/comment-page-1/#comment-19391 Learn C++ - » 14.4 — Expression parameters and template specialization Fri, 20 Jun 2008 03:07:27 +0000 http://www.learncpp.com/?p=206#comment-19391 [...] 14.3 — Template classes [...] [...] 14.3 — Template classes [...]

]]> By: Learn C++ - » 14.2 — Function template instances http://www.learncpp.com/cpp-tutorial/143-template-classes/comment-page-1/#comment-19165 Learn C++ - » 14.2 — Function template instances Tue, 17 Jun 2008 04:05:31 +0000 http://www.learncpp.com/?p=206#comment-19165 [...] 14.3 — Template classes [...] [...] 14.3 — Template classes [...]

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