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When does invoking a member function on a null instance result in undefined behavior?
...behavior" is mentioned in notes in both §1.9/4 and §8.3.2/4, it's never explicitly stated. (Notes are non-normative.)
However, one can try to deduced it from §3.10/2:
An lvalue refers to an object or function.
When dereferencing, the result is an lvalue. A null pointer does not refer to a...
How to find time complexity of an algorithm
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How to find time complexity of an algorithm
You add up how many machine instructions it will execute as a function of the size of its input, and then simplify the expression to the largest (when N is very large) term and can include any simplify...
C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...erator是完全不同的类，他们之间的关系甚至比string和complex<double>之间的关系还要远。
下面是这种方案的本质。
typedef deque<int> IntDeque; //类型定义，简化代码
typedef IntDeque::iterator Iter;
typedeef IntDeque:;const_iterator ConstIter;
IntDeque ...
Customizing Bootstrap CSS template
..., be completely (and easily) modifiable, be sustainable (ie – when the next version of Bootstrap is released from Twitter I don’t have to start over.
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Why are mutable structs “evil”?
...ue types immutable.
First, you tend to lose changes quite easily... for example, getting things out of a list:
Foo foo = list[0];
foo.Name = "abc";
what did that change? Nothing useful...
The same with properties:
myObj.SomeProperty.Size = 22; // the compiler spots this one
forcing you to d...
Android emulator failed to allocate memory 8
When I try to run my WXGA800 emulator from Eclipse it's giving an error like this
12 Answers
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Python try…except comma vs 'as' in except
What is the difference between ',' and 'as' in except statements, eg:
5 Answers
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How to access parent scope from within a custom directive *with own scope* in AngularJS?
...ards, but I want to avoid something totally hacky or unmaintainable. For example, I know I could do it right now by taking the $scope from the preLink parameters and iterating over it's $sibling scopes to find the conceptual "parent".
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What's the difference between `1L` and `1`?
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So, @James and @Brian explained what 3L means. But why would you use it?
Most of the time it makes no difference - but sometimes you can use it to get your code to run faster and consume less memory. A double ("numeric") vector uses 8 bytes per e...
How to get Linux console window width in Python
...the number of characters that fits in one line without wrapping, not the pixel width of the window.
14 Answers
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