大约有 40,000 项符合查询结果（耗时：0.0371秒） [XML]
How to calculate a time difference in C++
...me>
class Timer
{
public:
Timer() { clock_gettime(CLOCK_REALTIME, &beg_); }
double elapsed() {
clock_gettime(CLOCK_REALTIME, &end_);
return end_.tv_sec - beg_.tv_sec +
(end_.tv_nsec - beg_.tv_nsec) / 1000000000.;
}
void reset() { clock_gettim...
Publish to S3 using Git?
...
FYI, this depends on Composer, which in turn depends on PHP.
– Maarten
Sep 28 '13 at 14:06
...
Rebase feature branch onto another feature branch
...r
\ \
\ d -- e -- f -- g <-- Branch1 (Cherry-Pick f & g)
\
f -- g <-- Branch2
share
|
improve this answer
|
follow
...
What is the Python equivalent of Matlab's tic and toc functions?
...e stuff
Sometimes I find this technique more convenient than timeit - it all depends on what you want to measure.
share
|
improve this answer
|
follow
|
...
Perform commands over ssh with Python
...nal shell commands and you end up with: which 'mkdir' > /dev/null 2>&1 ; echo $?; exec 'mkdir' '-p' '/data/rpmupdate/20130207142923'. I would like to have also access to a plain exec_command. Also missing ability to run background tasks: nohup ./bin/rpmbuildpackages < /dev/null >&amp...
When are C++ macros beneficial? [closed]
...cros? YES!!!
One place I use macros is with very repetitive code. For example, when wrapping C++ code to be used with other interfaces (.NET, COM, Python, etc...), I need to catch different types of exceptions. Here's how I do that:
#define HANDLE_EXCEPTIONS \
catch (::mylib::exception& e) ...
Create batches in linq
...
bucket = null;
count = 0;
}
if (bucket != null && count > 0)
yield return bucket.Take(count).ToArray();
}
share
|
improve this answer
|
...
How to kill a child process after a given timeout in Bash?
...hat timeout does internally:
( cmdpid=$BASHPID; (sleep 10; kill $cmdpid) & exec ping www.goooooogle.com )
In case that you want to do a timeout for longer bash code, use the second option as such:
( cmdpid=$BASHPID;
(sleep 10; kill $cmdpid) \
& while ! ping -w 1 www.goooooogle.co...
Convert JavaScript String to be all lower case?
...triNg".toLowerCase()
Here's the function that behaves exactly the same as PHP's one (for those who are porting PHP code into js)
function strToLower (str) {
return String(str).toLowerCase();
}
share
|
...
Java Pass Method as Parameter
...code not tested, but I believe this is valid java...
public class CommandExample
{
public interface Command
{
public void execute(Object data);
}
public class PrintCommand implements Command
{
public void execute(Object data)
{
System.out....