大约有 40,700 项符合查询结果（耗时：0.0425秒） [XML]
In what cases could `git pull` be harmful?
I have a colleague who claims that git pull is harmful, and gets upset whenever someone uses it.
5 Answers
...
Function passed as template argument
...
Yes, it is valid.
As for making it work with functors as well, the usual solution is something like this instead:
template <typename F>
void doOperation(F f)
{
int temp=0;
f(temp);
std::cout << "Result is " <&l...
How does a debugger work?
...slates code to machine language, but then how does debugger 'know' what it is being attached to?
7 Answers
...
differentiate null=True, blank=True in django
...n the DB.
blank determines whether the field will be required in forms. This includes the admin and your custom forms. If blank=True then the field will not be required, whereas if it's False the field cannot be blank.
The combo of the two is so frequent because typically if you're going to allow ...
Should the hash code of null always be zero, in .NET
...
So long as the hash code returned for nulls is consistent for the type, you should be fine. The only requirement for a hash code is that two objects that are considered equal share the same hash code.
Returning 0 or -1 for null, so long as you choose one and return it...
When is each sorting algorithm used? [closed]
What are the use cases when a particular sorting algorithm is preferred over others - merge sort vs QuickSort vs heapsort vs 'intro sort', etc?
...
Why does this Java program terminate despite that apparently it shouldn't (and didn't)?
... of equipment. I've narrowed down over 40K lines in the faulty module to this:
5 Answers
...
What would cause an algorithm to have O(log n) complexity?
My knowledge of big-O is limited, and when log terms show up in the equation it throws me off even more.
6 Answers
...
How to fix: “UnicodeDecodeError: 'ascii' codec can't decode byte”
...oss the entire spectrum. Strings contain encoded text, beit UTF-8, UTF-16, ISO-8895-1, GBK, Big5 etc. Strings are decoded to Unicode and Unicodes are encoded to strings. Files and text data are always transferred in encoded strings.
The Markdown module authors probably use unicode() (where the exce...
Difference between static class and singleton pattern?
What real (i.e. practical) difference exists between a static class and a singleton pattern?
39 Answers
...