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Releasing memory in Python
...hy it happened to release exactly 50.5mb, you're going to have to trace it from the bottom up. Why did malloc unmap 50.5mb worth of pages when you did those one or more free calls (for probably a bit more than 50.5mb)? You'd have to read your platform's malloc, and then walk the various tables and l...
Microsecond timing in JavaScript
...an a millisecond.
Divide this counter value, by the original counter value from initialization.
Now you got the decimal part of milliseconds!!!!!!!!
WARNING: Busy loops are NOT recommended in web browsers, but fortunately, these busy loops run for less than 1 millisecond each, and are only run a v...
Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...comments:
printf '' | git hash-object --stdin -t tree
Or, as seen here, from Colin Schimmelfing:
git hash-object -t tree --stdin < /dev/null
So I guess it is safer to define a variable with the result of that command as your empty sha1 tree (instead of relying of a "well known value").
Not...
C++ equivalent of java's instanceof
...re checking for), and pass in the object you want to test as the argument (from which template type K would be inferred).
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Bidirectional 1 to 1 Dictionary in C#
...ToSecond.Count; }
}
/// <summary>
/// Removes all items from the dictionary.
/// </summary>
public void Clear()
{
firstToSecond.Clear();
secondToFirst.Clear();
}
}
sh...
Favicons - Best practices
...
Just wondering where the 196 pixel size comes from. Is that a spec for a specific device or a standard?
– bluesixty
Apr 25 '18 at 19:45
...
Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...態或是socket沒有呼叫bind()函式指定socket名稱
recv()和recvfrom()
對於datagram socket，socket沒有呼叫bind()函式指定IP位址、port和協定等；對於stream socket，連接尚未建立
send()和sendto()
對於datagram socket，socket沒有呼叫bind()函式指定IP位...
Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...的值是“
a,b,c”。
二、字符串处理函数
$(subst <from>,<to>,<text> )
名称：字符串替换函数——subst。
功能：把字串<text>中的<from>字符串替换成<to>。
返回：函数返回被替换过后的字符串。
示例：
$(subst ee,EE...
Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...的值是“
a,b,c”。
二、字符串处理函数
$(subst <from>,<to>,<text> )
名称：字符串替换函数——subst。
功能：把字串<text>中的<from>字符串替换成<to>。
返回：函数返回被替换过后的字符串。
示例：
$(subst ee,EE...
Makefile经典教程（入门必备） - C/C++ - 清泛网 - 专注IT技能提升
...的值是“
a,b,c”。
二、字符串处理函数
$(subst <from>,<to>,<text> )
名称：字符串替换函数——subst。
功能：把字串<text>中的<from>字符串替换成<to>。
返回：函数返回被替换过后的字符串。
示例：
$(subst ee,EE...