Re: Hidden Features and Dark Corners of C++/STL
"Vladimir Jovic" <vladaspams@gmail.com> wrote in message
news:hcbd84$t24$1@news.albasani.net...
Goran wrote:
By now probably everyone know this one, but it was a major revelation
for me at the time: when a temporary is assigned to a reference inside
a {} block, it's lifetime is extended to the lifetime of a reference.
That made ScopeGuard possible. ScopeGuard FTW!
Do you mean something like in the next example?
[...]
_______________________________________________________________
#include <cstdio>
struct foo
{
foo()
{
std::printf("(%p)->foo::foo()\n",
(void*)this);
}
~foo()
{
std::printf("(%p)->foo::~foo()\n",
(void*)this);
}
};
foo
make_foo()
{
return foo();
}
int
main()
{
{
foo const& f = make_foo();
std::printf("got a const reference to f(%p)\n",
(void*)&f);
}
return 0;
}
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