When is an unnamed automatic variable destroyed?

[Steven T. Hatton]

In this code, when will (should) Xfromer::releas e be called?
struct C {
C(const char* c) { f = Xformer::xform( c); }
~C() { Xformer::releas e(f); }
const F* get() const { return f; }
F* f;
};

void fun(const char* c) {
F* foo = C(c).get();
bar(foo);
baz();
}

--
NOUN:1. Money or property bequeathed to another by will. 2. Something handed
down from an ancestor or a predecessor or from the past: a legacy of
religious freedom. ETYMOLOGY: MidE legacie, office of a deputy, from OF,
from ML legatia, from L legare, to depute, bequeath. www.bartleby.com/61/

[Victor Bazarov]

Re: When is an unnamed automatic variable destroyed?

Steven T. Hatton wrote:[color=blue]
> In this code, when will (should) Xfromer::releas e be called?
> struct C {
> C(const char* c) { f = Xformer::xform( c); }
> ~C() { Xformer::releas e(f); }
> const F* get() const { return f; }
> F* f;
> };
>
> void fun(const char* c) {
> F* foo = C(c).get();[/color]

The temporary that is used in the expression to initialise 'foo' will be
destroyed at the end of 'foo's initialisation. 'Xformer::relea se' should
be called as part of the destruction of the temporary, right after 'foo'
is initialised.
[color=blue]
> bar(foo);
> baz();
> }
>[/color]

V
--
Please remove capital As from my address when replying by mail

[Steven T. Hatton]

Re: When is an unnamed automatic variable destroyed?

Victor Bazarov wrote:
[color=blue]
> Steven T. Hatton wrote:[color=green]
>> In this code, when will (should) Xfromer::releas e be called?
>> struct C {
>> C(const char* c) { f = Xformer::xform( c); }
>> ~C() { Xformer::releas e(f); }
>> const F* get() const { return f; }
>> F* f;
>> };
>>
>> void fun(const char* c) {
>> F* foo = C(c).get();[/color]
>
> The temporary that is used in the expression to initialise 'foo' will be
> destroyed at the end of 'foo's initialisation. 'Xformer::relea se' should
> be called as part of the destruction of the temporary, right after 'foo'
> is initialised.
>[color=green]
>> bar(foo);
>> baz();
>> }
>>[/color]
>
> V[/color]

http://tinyurl.com/oz2m6

http://koolkat2.cs.rice.edu/cgi-bin/cvsweb.cgi/xercesc/xerces-c-src_2_6_0/samples/CreateDOMDocument/CreateDOMDocument.cpp

--
NOUN:1. Money or property bequeathed to another by will. 2. Something handed
down from an ancestor or a predecessor or from the past: a legacy of
religious freedom. ETYMOLOGY: MidE legacie, office of a deputy, from OF,
from ML legatia, from L legare, to depute, bequeath. www.bartleby.com/61/

[Victor Bazarov]

Re: When is an unnamed automatic variable destroyed?

Steven T. Hatton wrote:[color=blue]
> Victor Bazarov wrote:
>
>[color=green]
>>Steven T. Hatton wrote:
>>[color=darkred]
>>>In this code, when will (should) Xfromer::releas e be called?
>>>[...][/color]
>>
>>The temporary that is used [...]
>>
>>V[/color]
>
>
> http://tinyurl.com/oz2m6
> http://koolkat2.cs.rice.edu/cgi-bin/...OMDocument.cpp[/color]

Uh... Did you mean to supply some explanation to those links?