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Do I need to disable NSLog before release Application?
When releasing an app for iPhone, if I disable NSLog(); will it perform better?
12 Answers
...
How to make inline functions in C#
...return x + y;
};
Action<int> print = delegate(int x)
{
Console.WriteLine(x);
}
Action<int> helloWorld = delegate // parameters can be elided if ignored
{
Console.WriteLine("Hello world!");
}
Lambdas are new in C# 3.0 and come in two flavours.
Expression lambdas:
Func<int, ...
STL：accumulate与自定义数据类型 - C/C++ - 清泛网 - 专注C/C++及内核技术
...mulate()的原型为(文件取自DEV-C++编译器)：
template<typename _InputIterator, typename _Tp, typename _BinaryOperation>
_Tp accumulate(_InputIterator __first, _InputIterator __last, _Tp __init,
_BinaryOperation __binary_op)
{
// concept requirements
__glibcxx...
What is a singleton in C#?
What is a Singleton and when should I use it?
16 Answers
16
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How can I maintain fragment state when added to the back stack?
I've written up a dummy activity that switches between two fragments. When you go from FragmentA to FragmentB, FragmentA gets added to the back stack. However, when I return to FragmentA (by pressing back), a totally new FragmentA is created and the state it was in is lost. I get the feeling I'm ...
What does #defining WIN32_LEAN_AND_MEAN exclude exactly?
...luding some of the less frequently used APIs". Somewhere else I read that it speeds up the build process.
2 Answers
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Access nested dictionary items via a list of keys?
...ure which I would like to access via a list of keys to address the correct item.
18 Answers
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Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...nt instruction sequences, compiler optimizations enabled by -O2 might benefit average processor, but decrease performance on your particular processor (and the same applies to -Os). If you try the same example on different processors, you will find that on some of them benefit from -O2 while other a...
Named routes _path vs _url
...
_path helpers provide a site-root-relative path. You should probably use this most of the time.
_url helpers provide an absolute path, including protocol and server name. I've found that I mainly use these in emails when creating links to the app on...
Disable button in jQuery
...follow
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edited Sep 17 '14 at 13:37
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