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Python extending with - using super() Python 3 vs Python 2
...er didn't clarify anything for me. In Python 2, super(__class__) gives NameError: global name '__class__' is not defined, and super(self.__class__) is erroneous as well. You must provide an instance as a second argument, which would suggest you need to do super(self.__class__, self), but that is wro...
What's the use of Jade or Handlebars when writing AngularJs apps
...hing like:
.control-group(
ng-form
name='emailGroup'
ng-class='{"ng-error": emailGroup.$invalid}'
)
label.control-label Email
.controls
input(
type='email'
ng-model='user.email'
required
placeholder='you@example.com'
focus-on='focusEmail'
)
… whic...
Why '&&' and not '&'?
...t, in this particular case, the second code would produce a null reference error if person is null, since it tries to call person.punch() no matter whether person is null or not. This behavior of not evaluating the right operand is called short-circuiting.
[1] Some programmers will baulk for puttin...
How to correctly implement custom iterators and const_iterators?
...uctor, when converting const_iterator to iterator the compiler produces an error inside the constructor, making the user scratch his head in confusion and utter wtf. With the conversion operator I posted, the compiler just says that there is no suitable conversion from const_iterator to iterator, wh...
What is the advantage of using forwarding references in range-based for loops?
...value reference, whoever changed the container type will get a compilation error because you really really wanted these objects moved and not copied...
– cyberbisson
Apr 10 '19 at 20:03
...
How dangerous is it to access an array out of bounds?
...hings happen on computers I've used (corrupted files, unrecoverable system errors, etc.), and I have no idea how many of them might have been caused by some C program exhibiting the dreaded undefined behavior. (So far no actual demons have flown out of my nose.)
– Keith Thompso...
What guarantees are there on the run-time complexity (Big-O) of LINQ methods?
...
checked
{
if (source == null)
{
throw Error.ArgumentNull("source");
}
ICollection<TSource> collection = source as ICollection<TSource>;
if (collection != null)
{
return collection.Count;
}
IC...
What are some uses of template template parameters?
...lt;MyCreationPolicy> MyWidgetMgr;
Instead of the more cumbersome, and error prone way that a definition lacking template template arguments would have required:
typedef WidgetManager< MyCreationPolicy<Widget> > MyWidgetMgr;
...
Referencing a string in a string array resource with xml
...
@Benjiko99 thanks for spotting the error, have changed it accordingly.
– Amitesh
Oct 14 '15 at 16:48
...
CMake output/build directory
..." insourcesubdir)
IF(insource OR insourcesubdir)
MESSAGE(FATAL_ERROR "${MSG}")
ENDIF(insource OR insourcesubdir)
ENDMACRO(MACRO_ENSURE_OUT_OF_SOURCE_BUILD)
MACRO_ENSURE_OUT_OF_SOURCE_BUILD(
"${CMAKE_PROJECT_NAME} requires an out of source build."
)
The above macro comes from a...