<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Frage zu Zeigern]]></title><description><![CDATA[<p>Wieso geht das:</p>
<pre><code class="language-cpp">void killArray(int* arr,int size)
{
 for(int i=0;i&lt;size;i++)
  {
  *arr=0;
  arr++;
  }
}

int* array = makeArray();
 cout&lt;&lt;array[3]&lt;&lt;endl;
 killArray(array,10);
 cout&lt;&lt;array[3]&lt;&lt;endl;//zeigt nun 0
 delete[] array;
</code></pre>
<p>aber das:</p>
<pre><code class="language-cpp">void killArray(int* arr,int size)
{
 for(int i=0;i&lt;size;i++)
  arr[i]=0;
}

int* array = makeArray();
 cout&lt;&lt;array[3]&lt;&lt;endl;
 killArray(array,10);
 cout&lt;&lt;array[3]&lt;&lt;endl;//zeigt alten wert der drin war
 delete[] array;
</code></pre>
<p>nicht!</p>
<p>das geht wieder:</p>
<pre><code class="language-cpp">void killArray(int arr[],int size)
{
 for(int i=0;i&lt;size;i++)
   arr[i]=0;
}

int* array = makeArray();
 cout&lt;&lt;array[3]&lt;&lt;endl;
 killArray(array,10);
 cout&lt;&lt;array[3]&lt;&lt;endl;//zeigt nun 0
 delete[] array;
</code></pre>
]]></description><link>https://www.c-plusplus.net/forum/topic/139497/frage-zu-zeigern</link><generator>RSS for Node</generator><lastBuildDate>Sun, 30 Aug 2026 13:23:57 GMT</lastBuildDate><atom:link href="https://www.c-plusplus.net/forum/topic/139497.rss" rel="self" type="application/rss+xml"/><pubDate>Tue, 07 Mar 2006 10:18:23 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to Frage zu Zeigern on Tue, 07 Mar 2006 10:18:23 GMT]]></title><description><![CDATA[<p>Wieso geht das:</p>
<pre><code class="language-cpp">void killArray(int* arr,int size)
{
 for(int i=0;i&lt;size;i++)
  {
  *arr=0;
  arr++;
  }
}

int* array = makeArray();
 cout&lt;&lt;array[3]&lt;&lt;endl;
 killArray(array,10);
 cout&lt;&lt;array[3]&lt;&lt;endl;//zeigt nun 0
 delete[] array;
</code></pre>
<p>aber das:</p>
<pre><code class="language-cpp">void killArray(int* arr,int size)
{
 for(int i=0;i&lt;size;i++)
  arr[i]=0;
}

int* array = makeArray();
 cout&lt;&lt;array[3]&lt;&lt;endl;
 killArray(array,10);
 cout&lt;&lt;array[3]&lt;&lt;endl;//zeigt alten wert der drin war
 delete[] array;
</code></pre>
<p>nicht!</p>
<p>das geht wieder:</p>
<pre><code class="language-cpp">void killArray(int arr[],int size)
{
 for(int i=0;i&lt;size;i++)
   arr[i]=0;
}

int* array = makeArray();
 cout&lt;&lt;array[3]&lt;&lt;endl;
 killArray(array,10);
 cout&lt;&lt;array[3]&lt;&lt;endl;//zeigt nun 0
 delete[] array;
</code></pre>
]]></description><link>https://www.c-plusplus.net/forum/post/1010351</link><guid isPermaLink="true">https://www.c-plusplus.net/forum/post/1010351</guid><dc:creator><![CDATA[asdasdsad]]></dc:creator><pubDate>Tue, 07 Mar 2006 10:18:23 GMT</pubDate></item><item><title><![CDATA[Reply to Frage zu Zeigern on Tue, 07 Mar 2006 10:37:23 GMT]]></title><description><![CDATA[<p>Hi!</p>
<p>Seltsam, was macht denn die Funktion &quot;MakeArray()&quot;?</p>
<p>Folgende Codes setzen alle Werte des Arrays (0-9) auf 0.</p>
<pre><code class="language-cpp">void test1( int arr[] )
{
 	for ( int i = 0; i &lt; 10; i++ )
	{
		arr[ i ] = 0;
	}
}

void test2( int *arr )
{
	for ( int i = 0; i &lt; 10; i++ )
	{
		arr[ i ] = 0;
	}
}

void test3( int *arr )
{
	for ( int i = 0; i &lt; 10; i++ )
	{
		*( arr++ ) = 0;
	}
}
</code></pre>
<pre><code class="language-cpp">int main( void )
{
	int *arr = new int[ 10 ];
	int i;

	for ( i = 0; i &lt; 10; i++ )
		arr[ i ] = i;

	//test1( arr );
	//test2( arr );
	//test3( arr );

	for( i = 0; i &lt; 10; i++ )
		std::cout &lt;&lt; arr[ i ] &lt;&lt; std::endl;

	delete [] arr;

	return 0;
}
</code></pre>
<p>grüße</p>
]]></description><link>https://www.c-plusplus.net/forum/post/1010376</link><guid isPermaLink="true">https://www.c-plusplus.net/forum/post/1010376</guid><dc:creator><![CDATA[David_pb]]></dc:creator><pubDate>Tue, 07 Mar 2006 10:37:23 GMT</pubDate></item><item><title><![CDATA[Reply to Frage zu Zeigern on Tue, 07 Mar 2006 10:39:39 GMT]]></title><description><![CDATA[<pre><code class="language-cpp">int* makeArray()
{
 int* array = new int[10];
 for(int i=0;i&lt;10;i++)
  array[i] = i;
  return array;
}
</code></pre>
<p>hmm..also müssten meine varianten oben eigentlich funktionieren??</p>
]]></description><link>https://www.c-plusplus.net/forum/post/1010380</link><guid isPermaLink="true">https://www.c-plusplus.net/forum/post/1010380</guid><dc:creator><![CDATA[asdasdsad]]></dc:creator><pubDate>Tue, 07 Mar 2006 10:39:39 GMT</pubDate></item><item><title><![CDATA[Reply to Frage zu Zeigern on Tue, 07 Mar 2006 10:40:47 GMT]]></title><description><![CDATA[<p>Hallo,</p>
<p>asdasdsad schrieb:</p>
<blockquote>
<p>hmm..also müssten meine varianten oben eigentlich funktionieren??</p>
</blockquote>
<p>darf man fragen, was du bezwecken willst? Jeden Wert im Array auf 0 setzen? Array freigen?</p>
<p>MfG</p>
<p>GPC</p>
]]></description><link>https://www.c-plusplus.net/forum/post/1010382</link><guid isPermaLink="true">https://www.c-plusplus.net/forum/post/1010382</guid><dc:creator><![CDATA[GPC]]></dc:creator><pubDate>Tue, 07 Mar 2006 10:40:47 GMT</pubDate></item><item><title><![CDATA[Reply to Frage zu Zeigern on Tue, 07 Mar 2006 10:56:36 GMT]]></title><description><![CDATA[<p>bisschen rumprobieren mit arrays!<br />
keinen tieferen zweck</p>
]]></description><link>https://www.c-plusplus.net/forum/post/1010402</link><guid isPermaLink="true">https://www.c-plusplus.net/forum/post/1010402</guid><dc:creator><![CDATA[asdasdsad]]></dc:creator><pubDate>Tue, 07 Mar 2006 10:56:36 GMT</pubDate></item></channel></rss>