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What is RSS and VSZ in Linux memory management
...space sitting in RAM).
You can query the virtual address space of process 1234 using proc(5) with cat /proc/1234/maps and its status (including memory consumption) thru cat /proc/1234/status
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to_string is not a member of std, says g++ (mingw)
...ude <iostream>
int main()
{
std::cout << patch::to_string(1234) << '\n' << patch::to_string(1234.56) << '\n' ;
}
do not forget to include #include <sstream>
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get NSDate today, yesterday, this Week, last Week, this Month, last Month… variables
...s of a second that are part of the input date. Ie, the date could have 30.1234 seconds and the NSDateComponents only has 30 as the seconds value so subtracting 30 seconds from the NSDate leaves you with 0.1234 seconds past midnight. Also, some days have more (or less) than 24 hours (daylight savin...
How to get the separate digits of an int number?
...ll return the result in an Ascii values not a numeric. So that the number "1234" will be splited to "49", "50", "51", "52" instead of "1", "2", "3", "4". To do it right it should look like: IntStream chars = number.chars().map(Character::getNumericValue);
– Koin Arab
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How can I read inputs as numbers?
...or.
>>> data = int(input("Enter a number: "), 2)
Enter a number: 1234
Traceback (most recent call last):
File "<input>", line 1, in <module>
ValueError: invalid literal for int() with base 2: '1234'
For values that can have a fractional component, the type would be float ra...
Warning: mysql_connect(): [2002] No such file or directory (trying to connect via unix:///tmp/mysql.
...I had this and it didn't work:
$con = mysql_connect('localhost', 'root', '1234');
I did this and it worked:
$con = mysql_connect(':/Applications/MAMP/tmp/mysql/mysql.sock', 'root', '1234');
Instead of using the mysql server, I connected directly to the Unix Socket. Worked for me.
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Convert XML to JSON (and back) using Javascript
...kes the XML attributes into considerations.
var xml = ‘<person id=”1234” age=”30”><name>John Doe</name></person>’;
var json = xml2json(xml);
console.log(json);
// prints ‘{“person”: {“id”: “1234”, “age”: “30”, “name”: “John Doe”}}...
How can I limit possible inputs in a HTML5 “number” element?
...point isn't at the end of the value. For example, if you enter the value "1234" in the input field, then move the insertion point back to the beginning of the value and type "5", you end up with the value "5123". This is different than an input type="text" field with a maxlength of 4, where the br...
How can I measure the actual memory usage of an application or process?
...ments>
Massif writes a dump of memory usage snapshots (e.g. massif.out.12345). These provide, (1) a timeline of memory usage, (2) for each snapshot, a record of where in your program memory was allocated. A great graphical tool for analyzing these files is massif-visualizer. But I found ms_print...
ZeroMQ实例-使用ZMQ(ZeroMQ)进行局域网内网络通信 - C/C++ - 清泛网 - 专注C/C++及内核技术
...装zmq库
步骤如下：
1）下载zeromq的源代码，ZeroMQ的官方网址：http://zeromq.org/
百度网盘的下载地址 ： http://pan.baidu.com/s/1mg61em0
ZMQ API 的 百度网盘 下载地址 ： http://pan.baidu.com/s/1jGDqXfS
注：在本文写作时，ZMQ版本已...