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Are static class variables possible in Python?
...4
>>> MyClass.i, m.i
>>> (3, 4)
This is different from C++ and Java, but not so different from C#, where a static member can't be accessed using a reference to an instance.
See what the Python tutorial has to say on the subject of classes and class objects.
@Steve Johnson has a...
How can I reliably get an object's address when operator& is overloaded?
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Update: in C++11, one may use std::addressof instead of boost::addressof.
Let us first copy the code from Boost, minus the compiler work around bits:
template<class T>
struct addr_impl_ref
{
T & v_;
inline addr_impl_r...
Why is enum class preferred over plain enum?
I heard a few people recommending to use enum classes in C++ because of their type safety .
9 Answers
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Which Boost features overlap with C++11?
I put my C++ skills on the shelf several years ago and it seems now, when I need them again, the landscape has changed.
2 A...
How to convert an xml string to a dictionary?
...: '1', 'c': 'three', 'b': '2.2'}}
There are tools for converting in both C++ and Python: the C++ and Python do indentical conversion, but the C++ is about 60x faster
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With arrays, why is it the case that a[5] == 5[a]?
...ve integer type.
in which case both i + p and i[p] would be illegal.
In C++ terms, we really have two sets of overloaded + operators, which can be loosely described as:
pointer operator+(pointer p, integer i);
and
pointer operator+(integer i, pointer p);
of which only the first is really ne...
Does async(launch::async) in C++11 make thread pools obsolete for avoiding expensive thread creation
It is loosely related to this question: Are std::thread pooled in C++11? . Though the question differs, the intention is the same:
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Why is processing a sorted array slower than an unsorted array?
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Good reason why everything you learn in C/C++ doesn't apply verbatim to a language like C#!
– user541686
Dec 24 '12 at 17:48
38
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std::auto_ptr to std::unique_ptr
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Scott Meyers also mentioned in his "Effective C++" (3rd Edition) Item 13 (page 64) that STL containers require that their contents exhibit "normal" copying behavior, so containers of auto_ptr aren't allowed.
– Qiang Xu
Oct 29 '12 at...
Error: Jump to case label
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C++11 standard on jumping over some initializations
JohannesD gave an explanation, now for the standards.
The C++11 N3337 standard draft 6.7 "Declaration statement" says:
3 It is possible to transfer into a block, but n...