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<pre align="left">
<b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000">〖<font color="#0033CC">example</font>〗<font color="#FF0000">list deletion
</font>
List after the function call<font color="#FF0000"> delete(&ptr, NULL, ptr)
</font><img src="image/linkex4-1.gif" width="327" height="89"> <img src="image/linkex4-2.gif" width="213" height="78">
List after the function call <font color="#FF0000">delete(&ptr, ptr, prt->link)</font>
<img src="image/linkex4-3.gif" width="328" height="95"> <img src="image/linkex4-4.gif" width="213" height="80">
void <font color="#FF0000">delete</font>(list_pointer *ptr, list_pointer trail, list_pointer node)
{ <i><font size="3" color="#ff0099"> /* delete node from the list, trail is the preceding node ptr is the
head of the list */</font></i>
if ( trail )
trail->link = node->link;
else
*ptr = (*ptr)->link;
<font color="#FF0000">free</font>(node);
}</font></b>
<b><font face="Arial, Helvetica, sans-serif" size="4" color="#000000">
〖<font color="#0033CC">example</font>〗<font color="#FF0000">Printing out a list
</font>void <font color="#FF0000">print_list</font>(list_pointer ptr)
{
printf("The list contains: ");
for ( ; ptr; ptr = ptr->link )
printf("%4d,ptr->data);
printf("\n");
}
</font></b></pre>
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