zypp::DtorReset Class Reference
[RAII solutions]

Assign a vaiable a certain value when going out of scope. More...

#include <DtorReset.h>

List of all members.

Classes

struct  Impl
 Requires _Val being copy constructible, and assignment _Var = _Val defined. More...

Public Member Functions

template<class _Var >
 DtorReset (_Var &var_r)
template<class _Var , class _Val >
 DtorReset (_Var &var_r, const _Val &val_r)

Private Attributes

shared_ptr< void > _pimpl

Detailed Description

Assign a vaiable a certain value when going out of scope.

Use it e.g. to reset/cleanup in presence of exceptions. 

 struct Foo
 {
   void consume()
   {
     DtorReset x(_inConsume,false);
     _inConsume = true;
     MIL << _inConsume << endl;
   };

   DefaultIntegral<bool,false> _inConsume;
 };

 Foo f;
 MIL << f._inConsume << endl; // 0
 f.consume();                 // 1
 MIL << f._inConsume << endl; // 0

Todo:
Check if using call_traits enables 'DtorReset(std::string,"value")', as this currently would require assignment of 'char[]'.

Definition at line 49 of file DtorReset.h.

Constructor & Destructor Documentation

template<class _Var >
zypp::DtorReset::DtorReset ( _Var &  var_r  )  [inline]

Definition at line 53 of file DtorReset.h.

template<class _Var , class _Val >
zypp::DtorReset::DtorReset ( _Var &  var_r,
const _Val &  val_r 
) [inline]

Definition at line 57 of file DtorReset.h.

Member Data Documentation

shared_ptr<void> zypp::DtorReset::_pimpl [private]

Definition at line 76 of file DtorReset.h.

The documentation for this class was generated from the following file:
doxygen