RE: [Dev-C++] 'New Source File' bug

[Ioannis V. <no...@ya...>]

 <http://run.to/noicys> 
-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Devin
Carless
Sent: Tuesday, February 19, 2002 4:37 PM
To: dev...@li...
Subject: Re: [Dev-C++] 'New Source File' bug



 

 
 int array[]={1,2,3,4,5,6,7,8,9,10};
 
                          // one past the end
 vector<int>v3(&array[0], &array[10]); // Creates v3 having the values
of array

  Ooo.  I didn't know you could do that.  The -only- source I have for
initializing vectors 
in objects (ANSI-C++ won't let you specify a size if the vector is in an
object) 
 

 
Huh? :) ANSI C++ lets you specify the size of a vector in any
circumstance.
 
uses a hack.  The object's vector is declared without a size.  In the
constructor, a temp vector 
is declared /with/ a size, and the object's vector is equated to it.  
 

This has large time cost. Also for large vectors it has large space cost
too.

 
 
  When the constructor 
ends, the temp vector goes out of scope.  Problem solved, at the minor
(hah) cost of 
some clarity. 
 

 
Large time/space cost for large vectors. We must try to avoid changing
the size of the vector as also creating temporary ones. 
 
 
You can initialize them as i said, why to do these dirty tricks anymore?
:)
 
 
 
Ioannis
 
* Ioannis Vranos
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