大约有 42,000 项符合查询结果（耗时：0.0717秒） [XML]
Is Haxe worth learning? [closed]
...mer requires PHP, or maybe that widget should be in Flash not Javascript), and this is the best case scenario. In the worst case you'll have to switch constantly, often multiple times in the same business day.
Those switches can waste a lot of your time because you need to change your programming ...
What is private bytes, virtual bytes, working set?
...e a reliable indicator of how much memory an executable is actually using, and none of them are really appropriate for debugging a memory leak.
Private Bytes refer to the amount of memory that the process executable has asked for - not necessarily the amount it is actually using. They are "private...
Why do people say there is modulo bias when using a random number generator?
...it. So I am going to post one here which will hopefully help people understand why exactly there is "modulo bias" when using a random number generator, like rand() in C++.
...
How expensive is RTTI?
I understand that there is a resource hit from using RTTI, but how big is it? Everywhere I've looked just says that "RTTI is expensive," but none of them actually give any benchmarks or quantitative data reguarding memory, processor time, or speed.
...
How to explain callbacks in plain english? How are they different from calling one function from ano
...on will set this variable with the information about function to be called and will call the function using the same variable.
In javascript, the example is below. Here we use method argument as a variable where we store information about function.
function processArray(arr, callback) {
var re...
REST API Token-based Authentication
...
Let me seperate up everything and solve approach each problem in isolation:
Authentication
For authentication, baseauth has the advantage that it is a mature solution on the protocol level. This means a lot of "might crop up later" problems are already ...
How to create a self-signed certificate with OpenSSL
...
You can do that in one command:
openssl req -x509 -newkey rsa:4096 -keyout key.pem -out cert.pem -days 365
You can also add -nodes (short for no DES) if you don't want to protect your private key with a passphrase. Otherwise it will prompt you for "...
Why should we NOT use sys.setdefaultencoding(“utf-8”) in a py script?
....
Also, the use of sys.setdefaultencoding() has always been discouraged, and it has become a no-op in py3k. The encoding of py3k is hard-wired to "utf-8" and changing it raises an error.
I suggest some pointers for reading:
http://blog.ianbicking.org/illusive-setdefaultencoding.html
http://nedb...
A complete solution to LOCALLY validate an in-app receipts and bundle receipts on iOS 7
I have read a lot of docs and code that in theory will validate an in-app and/or bundle receipt.
3 Answers
...
What does “dereferencing” a pointer mean?
...ring to the second byte in the process's memory, 2 the third, 3 the fourth and so on....
What happened to 0 and the first byte? Well, we'll get to that later - see null pointers below.
For a more accurate definition of what pointers store, and how memory and addresses relate, see "More about memo...