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Performance of FOR vs FOREACH in PHP
...ify inline)...
As for the iterators, foreach is equivalent to:
$it->rewind();
while ($it->valid()) {
$key = $it->key(); // If using the $key => $value syntax
$value = $it->current();
// Contents of loop in here
$it->next();
}
As far as there being faster w...
npm not working after clearing cache
...
This did not work for me on Windows 10 (no errors, just did nothing). I had to manually delete all the folders within %appdata%\npm-cache
– plasmid87
Dec 7 '17 at 16:18
...
Timer function to provide time in nano seconds using C++
...eeBSD
clock_gettime(CLOCK_REALTIME, &ts); // Works on Linux
}
For windows you want to use the QueryPerformanceCounter. And here is more on QPC
Apparently there is a known issue with QPC on some chipsets, so you may want to make sure you do not have those chipset. Additionally some dual cor...
Remove last commit from remote git repository [duplicate]
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Use git reset HEAD~1 on Win machines
– aeracode
Apr 10 '14 at 13:43
1
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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
...象
boost::asio::io_service io_service;
我们需要把在命令行参数中指定的服务器转换为TCP上的节点.完成这项工作需要boost::asio::ip::tcp::resolver对象
tcp::resolver resolver(io_service);
一个resolver对象查询一个参数,并将其转...
How to get the python.exe location programmatically? [duplicate]
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This works in Linux & Windows:
Python 3.x
>>> import sys
>>> print(sys.executable)
C:\path\to\python.exe
Python 2.x
>>> import sys
>>> print sys.executable
/usr/bin/python
...
Cordova 3.5.0 Install Error- Please Install Android Target 19
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FYI i had a problem with this on Win 8 until I ran the SDK utility as Admin. Worked after I ran elevated.
– swannee
Nov 14 '14 at 4:36
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MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...le to false
4. 控制指令发布
// 发布控制命令
procedure publishControlCommand device, action, qos
do
set Topic to "greenhouse/control/" & device
set Message to jsonCreate object
set Message.device to device
set Message.action to action
set Mess...
Do sealed classes really offer performance Benefits?
... Uhh... I realize this is old, but this isn't quite right... the big win with sealed classes is when the JIT Optimizer can inline the call... in that case, the sealed class can be a huge win.
– Brian Kennedy
Oct 1 '11 at 10:28
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C++ blogs that you regularly follow? [closed]
...
The Old New Thing deals with a lot of Win32 API topics, as well as a lot of interesting windows history. It doesn't cover MFC. For a general overview of the blog, see joelonsoftware.com/articles/APIWar.html
– Raul Agrait
Ju...