大约有 47,000 项符合查询结果（耗时：0.0249秒） [XML]
How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
How do you convert a Unix timestamp (seconds since epoch) to Ruby DateTime?
6 Answers
...
Do you use NULL or 0 (zero) for pointers in C++?
In the early days of C++ when it was bolted on top of C, you could not use NULL as it was defined as (void*)0 . You could not assign NULL to any pointer other than void* , which made it kind of useless. Back in those days, it was accepted that you used 0 (zero) for null pointers.
...
show all tags in git log
Why does git log --decorate not display more than one tag per commit?
3 Answers
3
...
Minimal web server using netcat
I'm trying to set up a minimal web server using netcat (nc). When the browser calls up localhost:1500, for instance, it should show the result of a function ( date in the example below, but eventually it'll be a python or c program that yields some data).
My little netcat web server needs to be a w...
Replacing NULL with 0 in a SQL server query
I have developed a query, and in the results for the first three columns I get NULL . How can I replace it with 0 ?
11 ...
iPad Safari scrolling causes HTML elements to disappear and reappear with a delay
I'm currently developing a web app using html5 and jQuery for iPad Safari. I'm running into a problem wherein large scroll areas cause the elements that are offscreen to appear after a delay when I scroll down to them.
...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
I have a computer with 1 MB of RAM and no other local storage. I must use it to accept 1 million 8-digit decimal numbers over a TCP connection, sort them, and then send the sorted list out over another TCP connection.
...
What is the preferred/idiomatic way to insert into a map?
I have identified four different ways of inserting elements into a std::map :
9 Answers
...
Initialising an array of fixed size in python [duplicate]
I would like to know how i can initialise an array(or list), yet to be populated with values, to have a defined size.
11 An...