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What is the global interpreter lock (GIL) in CPython?
... Note: PyPy has the GIL. Reference : http://doc.pypy.org/en/latest/faq.html#does-pypy-have-a-gil-why. While Ironpython and Jython don't have the GIL.
– Tasdik Rahman
Jun 8 '16 at 6:27
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nginx upload client_max_body_size issue
...progress stops, but I still see "Connection reset" page, not my static 413.html or anything that implies "Entity Too Large"
– krukid
Feb 10 '11 at 17:00
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Null vs. False vs. 0 in PHP
...base or is unknown. See dev.mysql.com/doc/refman/5.0/en/working-with-null.html or en.wikipedia.org/wiki/Null_%28SQL%29.
– Eli
Dec 5 '12 at 3:39
2
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What makes Lisp macros so special?
...plained better than by this fellow: http://www.defmacro.org/ramblings/lisp.html
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What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...og base 2 of that integer.
http://graphics.stanford.edu/~seander/bithacks.html#IntegerLogObvious
unsigned int v;
unsigned r = 0;
while (v >>= 1) {
r++;
}
This "obvious" algorithm may not be transparent to everyone, but when you realize that the code shifts right by one bit repeatedly ...
Types in MySQL: BigInt(20) vs Int(20)
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See http://dev.mysql.com/doc/refman/8.0/en/numeric-types.html
INT is a four-byte signed integer.
BIGINT is an eight-byte signed integer.
They each accept no more and no fewer values than can be stored in their respective number of bytes. That means 232 values in an INT and 2...
What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?
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From http://www.javaroots.com/2013/02/classnotfoundexception-vs.html:
ClassNotFoundException : occurs when class loader could not find the required class in class path. So, basically you should check your class path and add the class in the classpath.
NoClassDefFoundError : this is more...
Is there a “previous sibling” selector?
...not restore the original semantical order that you are forced to change in HTML for this workaround to work.
– Marat Tanalin
Mar 20 '16 at 21:47
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Which is more efficient, a for-each loop, or an iterator?
...rator-based one. docs.oracle.com/javase/7/docs/api/java/util/RandomAccess.html
– andresp
Nov 20 '13 at 1:00
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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网
...件。例如：
XmitData 是 https://bbs.tsingfun.com/thread-1648-1-1.html 扩展的一个实例。这是块概述中的最后一项：
发送到多播组
发送到多播组与“正常”发送没有什么不同。作为 RemoteHost，必须指定组的 IP 地址。
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