大约有 27,000 项符合查询结果（耗时：0.0635秒） [XML]
Why are variables “i” and “j” used for counters?
...il someone produces an answer that goes back further, this is the best. It does at least speculate why it's used in mathematics. A proper mathematical historian could find out, maybe using a binary chop. Euclid didn't use it, I bet von Neumann did. How about Cauchy? He used indexes a lot
...
How do I base64 encode (decode) in C?
...ase64 in c.
I looked in openssl library but i could not find any function.
Does any body have any idea?
16 Answers
...
Default behavior of “git push” without a branch specified
...ear. I'm probably running an older version of git (1.6.1.1 Mac OS X) which does not have these examples in the man page.
– PlagueHammer
Jun 4 '09 at 3:53
...
Are inline virtual functions really a non-sense?
... should be aware though that empty braces don't always mean the destructor does nothing. Destructors default-destruct every member object in the class, so if you have a few vectors in the base class that could be quite a lot of work in those empty braces!
– Philip
...
Can I change all my http:// links to just //?
...s fine though.
Apparently there's at least one iPhone feed reader app that does not handle the protocol-less URLs correctly. I'm not aware of which one has the problem or how popular it is. For hosting a JavaScript file, that's not a big problem since RSS readers typically ignore JavaScript conten...
How do you use version control with Access development?
...ting" all the others, since VBA is supposed to be case insensitive. Access does this, even though the controls are on different forms! The problem gets bigger if you even have multiple controls of the same name in different cases on different forms.
– Oliver
No...
Rails: Logging the entire stack trace of an exception
...hich states that logger.error $!, $!.backtrace is the way to go but that does not work for me log_error does. As per documentation I do not see how passing a second argument to the error method would work anyway because the ruby logger that rails uses only accepts a single argument.
...
How to limit the amount of concurrent async I/O operations?
...tation and usage as it is used internally inside the method and the method does not access its AvailableWaitHandle property in which case we would have needed to either dispose or wrap it within a using block.
– Dogu Arslan
Oct 21 '17 at 19:53
...
Convert PHP closing tag into comment
...pt contains a PHP closing tag inside a string. Under normal operation this does not cause a problem, but I need to comment out the line.
...
How to create a directory if it doesn't exist using Node.js?
Is this the right way to create a directory if it doesn't exist.
It should have full permission for the script and readable by others.
...