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How to initialize private static members in C++?
... one of our .cpp files? It will compile fine and we will have no way of knowing which one wins until we run the program.
Never put executed code into a header for the same reason that you never #include a .cpp file.
include guards (which I agree you should always use) protect you from something di...
DirectX SDK (June 2010) Installation Problems: Error Code S1023
...Redistributable Setup_20110608_xxx.html ##
and check if you have the following error
Installation Blockers:
A newer version of Microsoft Visual C++ 2010 Redistributable has been detected on the machine.
Final Result: Installation failed with error code: (0x000013EC), "A StopBlock was ...
Why would you use Oracle database? [closed]
...tools, and finicky optimizer. Whatever savings you get by foregoing an MS Win Server license will immediately be eaten up by lost productivity.
– engil
May 13 '14 at 20:42
4
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What Computer Science concepts should I know? [closed]
...
Operating system concepts: Modern operating systems
People skills: How to win friends and influence people
Teamwork: Peopleware
User interface design: The inmates are running the asylum
share
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im...
Suppress warning “Category is implementing a method which will also be implemented by its primary cl
...in it. Ideally, singletons should be injected into code as a protocol, allowing you to switch out the implementation. But if you already have one embedded inside your code, you can add a category of the singleton in your unit test and overide the sharedInstance and the methods you what to control to...
How do I replace a character at a particular index in JavaScript?
...
There is no replaceAt function in JavaScript. You can use the following code to replace any character in any string at specified position:
function rep() {
var str = 'Hello World';
str = setCharAt(str,4,'a');
alert(str);
}
function setCharAt(str,index,chr) {
if(index >...
Should a Netflix or Twitter-style web service use REST or SOAP? [closed]
... bigger picture. Talking about envelope bytes is like talking about loop unwinding when comparing a quick-sort to a shell-sort. There are scenarios where SOAP can perform better, and there are scenarios where REST can perform better. Context is everything.
REST gains much of its performance advanta...
Why does Java's hashCode() in String use 31 as a multiplier?
... subtract instruction. However, if your multiplier is slow this is still a win. Modern processors tend to have fast multipliers so it doesn't make much difference, so long as 32 goes on the correct side.
It's not a great hash algorithm, but it's good enough and better than the 1.0 code (and very mu...
Programmer Puzzle: Encoding a chess board state throughout a game
...s “all subsequent legal moves”. The problem also says nothing about knowing the moves up to this point. That’s actually a problem as I’ll explain.
Castling
The game has proceeded as follows:
e4 e5
Nf3 Nc6
Bb5 a6
Ba4 Bc5
The board looks as follows:
White has the option of castling...
如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注IT技能提升
...参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen
How do you know what machine learning algorithm to choose for your classification problem? Of course, if you really care about accuracy, your best bet is to test out a couple different ones (making sure to try dif...