zypp::DtorReset Class Reference

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

#include <DtorReset.h>

Classes
struct	Impl
	Requires TVal being copy constructible, and assignment TVar = TVal defined. More...

Public Member Functions
	DtorReset ()
template<class TVar >
	DtorReset (TVar &var_r)
template<class TVar , class TVal >
	DtorReset (TVar &var_r, const TVal &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

zypp::DtorReset::DtorReset ( )

inline

Definition at line 52 of file DtorReset.h.

template<class TVar >

zypp::DtorReset::DtorReset ( TVar &  var_r )

inline

Definition at line 55 of file DtorReset.h.

template<class TVar , class TVal >

zypp::DtorReset::DtorReset ( TVar &  var_r, const TVal &  val_r  )

inline

Definition at line 59 of file DtorReset.h.

Member Data Documentation

shared_ptr<void> zypp::DtorReset::_pimpl

private

Definition at line 78 of file DtorReset.h.

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

• zypp/base/DtorReset.h