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How do I make many-to-many field optional in Django?
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answered Mar 27 '10 at 15:46
Ludwik TrammerLudwik Trammer
20.8k55 gold badges5555 silver badges8686 bronze badges
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What is the correct way of using C++11's range-based for?
...ile.
g++ outputs an error message similar to this:
TestRangeFor.cpp:168:20: error: invalid initialization of non-const reference of
type 'std::_Bit_reference&' from an rvalue of type 'std::_Bit_iterator::referen
ce {aka std::_Bit_reference}'
for (auto& x : v)
^
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Is it considered acceptable to not call Dispose() on a TPL Task object?
...ikely better to rely on finalization to take care of things.
Update (Oct 2012)
Stephen Toub has posted a blog titled Do I need to dispose of Tasks? which gives some more detail, and explains the improvements in .Net 4.5.
In summary: You don't need to dispose of Task objects 99% of the time.
Ther...
How many and which are the uses of “const” in C++?
...have their own version.
Using code:
int main() {
string const a = "1234";
string const b = a;
// outputs the same address for COW strings
cout << (void*)&a[0] << ", " << (void*)&b[0];
}
The above snippet prints the same address on my GCC, because the us...
How to compile without warnings being treated as errors?
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answered Jul 19 '12 at 12:52
Daniel FischerDaniel Fischer
172k1515 gold badges286286 silver badges416416 bronze badges
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Do I need to manually close an ifstream?
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254
NO
This is what RAII is for, let the destructor do its job. There is no harm in closing it ma...
Vim: How do you open another [No Name] buffer like the one on startup?
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324
There are many ways to open a new buffer with no name, the simplest of which is :new.
:new wil...
How do I reference a specific issue comment on github?
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answered Aug 6 '14 at 20:00
centiccentic
13.8k66 gold badges5353 silver badges110110 bronze badges
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EditText, inputType values (xml)
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edited May 22 '14 at 19:51
Dheeraj Bhaskar
16.3k99 gold badges5353 silver badges6363 bronze badges
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Preferred Github workflow for updating a pull request after code review
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