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GLib compile error (ffi.h), but libffi is installed
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270
If you have a Debian-based Linux OS with apt-get:
sudo apt-get install libffi-dev
With a Redh...
Associative arrays in Shell scripts
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20
To add to Irfan's answer, here is a shorter and faster version of get() since it requires no ite...
Boost.Asio的简单使用(Timer,Thread,Io_service类) - C/C++ - 清泛网 - 专注C/C++及内核技术
...来演示timer到时了.
std::cout << "Hello, world! ";
return 0;
}
完整的代码:
#include <iostream>
#include <boost/asio.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
int main()
{
boost::asio::io_service io;
boost::asio::deadline_timer t(io, boost:...
How to change a command line argument in Bash?
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edited Mar 30 '18 at 12:48
Ciro Santilli 郝海东冠状病六四事件法轮功
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Better way of getting time in milliseconds in javascript?
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answered Feb 2 '11 at 12:40
Joeri SebrechtsJoeri Sebrechts
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Does static constexpr variable inside a function make sense?
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240
The short answer is that not only is static useful, it is pretty well always going to be desired...
How to write a Ruby switch statement (case…when) with regex and backreferences?
... groups are always stored in pseudo variables $1 to $9:
case foo
when /^([0-9][0-9])/
print "the month is #{$1}"
else
print "something else"
end
You can also use the $LAST_MATCH_INFO pseudo variable to get at the whole MatchData object. This can be useful when using named captures:
case ...
Reuse a parameter in String.format?
...rams
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How do I upload a file with metadata using a REST web service?
...": 52.12873
}
To create the metadata entry and return a response like:
201 Created
Location: http://server/data/media/21323
{
"Name": "Test",
"Latitude": 12.59817,
"Longitude": 52.12873,
"ContentUrl": "http://server/data/media/21323/content"
}
The client can then use this Conten...