大约有 18,000 项符合查询结果(耗时:0.0506秒) [XML]

https://stackoverflow.com/ques... 

print call stack in C or C++

Is there any way to dump the call stack in a running process in C or C++ every time a certain function is called? What I have in mind is something like this: ...
https://stackoverflow.com/ques... 

Print number of keys in Redis

Is there a way to print the number of keys in Redis? 8 Answers 8 ...
https://stackoverflow.com/ques... 

How to check version of a CocoaPods framework

I have updated Flurry via CocoaPods, but how can I check if Flurry was updated? 10 Answers ...
https://stackoverflow.com/ques... 

C++ equivalent of java's instanceof

What is the preferred method to achieve the C++ equivalent of java's instanceof ? 6 Answers ...
https://stackoverflow.com/ques... 

Write to file, but overwrite it if it exists

How do I make it so it creates the file if it doesn't exist, but overwrites it if it already exists. Right now this script just appends. ...
https://stackoverflow.com/ques... 

split string only on first instance - java

I want to split a string by '=' charecter. But I want it to split on first instance only. How can I do that ? Here is a JavaScript example for '_' char but it doesn't work for me split string only on first instance of specified character ...
https://stackoverflow.com/ques... 

Longest line in a file

I'm looking for a simple way to find the length of the longest line in a file. Ideally, it would be a simple bash shell command instead of a script. ...
https://stackoverflow.com/ques... 

What is the difference between and ?

...tween <html lang="en"> and <html lang="en-US"> ? What other values can follow the dash? 6 Answers ...
https://stackoverflow.com/ques... 

How to combine multiple conditions to subset a data-frame using “OR”?

I have a data.frame in R. I want to try two different conditions on two different columns, but I want these conditions to be inclusive. Therefore, I would like to use "OR" to combine the conditions. I have used the following syntax before with lot of success when I wanted to use the "AND" conditio...
https://stackoverflow.com/ques... 

What is a “callback” in C and how are they implemented?

From the reading that I have done, Core Audio relies heavily on callbacks (and C++, but that's another story). 9 Answers ...