libzypp  17.23.5
zypp::NullDeleter Struct Reference

shared_ptr custom deleter doing nothing. More...

#include <PtrTypes.h>

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:
};

Definition at line 82 of file PtrTypes.h.

Member Function Documentation

◆ operator()()

void zypp::NullDeleter::operator() ( const void * const  ) const
inline

Definition at line 84 of file PtrTypes.h.


The documentation for this struct was generated from the following file:
shared_ptr
zypp::ifgzstream
detail::fXstream< std::istream, gzstream_detail::fgzstreambuf > ifgzstream
istream reading gzip files as well as plain files.
Definition: GzStream.h:157
zypp::asString
std::string asString(const DefaultIntegral< Tp, TInitial > &obj)
Definition: DefaultIntegral.h:98
std
Definition: Arch.h:347