libzypp  10.5.0
Public Member Functions
zypp::NullDeleter Struct Reference
Smart pointer types

shared_ptr custom deleter doing nothing. More...

#include <PtrTypes.h>

List of all members.

Public Member Functions

void operator() (const void *const ) const

Detailed Description

shared_ptr custom deleter doing nothing.

A custom deleter is a function being called when the last shared_ptr goes out of score. Per default the object gets deleted, but you can insall custom deleters as well. This one does nothing.

  // Some class providing a std::istream
  struct InpuStream
 {
   // Per deafult use std::cin.
   InputStream()
   : _stream( &std::cin, NullDeleter() )
   {}
   // Or read from a file.
   InputStream( const Pathname & file_r )
   : _stream( new ifgzstream( _path.asString().c_str() ) )
   {}
   // Or use a stream priovided by the application.
   InputStream( std::istream & stream_r )
   : _stream( &stream_r, NullDeleter() )
   {}

   std::istream & stream()
   { return *_stream; }

 private:
   shared_ptr<std::istream> _stream;
 };

Definition at line 75 of file PtrTypes.h.

The documentation for this struct was generated from the following file: