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Forward an invocation of a variadic function in C
... Uli Köhler
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answered Sep 29 '08 at 20:56
Adam RosenfieldAdam Rosenfield
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How to get line count of a large file cheaply in Python?
... had to post this on a similar question until my reputation score jumped a bit (thanks to whoever bumped me!).
All of these solutions ignore one way to make this run considerably faster, namely by using the unbuffered (raw) interface, using bytearrays, and doing your own buffering. (This only appl...
Are there disadvantages to using a generic varchar(255) for all text-based fields?
...thus in temp tables or sorted results.
I have helped MySQL users who unknowingly created 1.5GB temp tables frequently and filled up their disk space. They had lots of VARCHAR(255) columns that in practice stored very short strings.
It's best to define the column based on the type of data that you...
Performance differences between debug and release builds
...rmediates of a floating point calculation are kept in a FPU register at 80-bit precision instead of getting truncated when flushed to memory.
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convert UIImage to NSData
...-level representation of the image RGB pixels.
(Omit the CFBridgingRelease bit if you are not using ARC).
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Append TimeStamp to a File Name
...file time.
public long ToFileTime()
A Windows file time is a 64-bit value that represents the number of 100-nanosecond intervals that have elapsed since 12:00 midnight, January 1, 1601 A.D. (C.E.) Coordinated Universal Time (UTC). Windows uses a file time to record when an application cre...
Eclipse JPA Project Change Event Handler (waiting)
...e.jpt.* disabled/plugins
mv features/org.eclipse.jpt.* disabled/features
windows:
mkdir disabled
mkdir disabled\features
mkdir disabled\plugins
move plugins\org.eclipse.jpt.* disabled\plugins
for /D /R %D in (features\org.eclipse.jpt.*) do move %D disabled\features
3.) Restart eclipse.
Afte...
How to get the IP address of the docker host from inside a docker container
...nswer and will mislead a lot of people - recommend you remove it. (The RUN bit)
– Michael Neale
Mar 6 '15 at 0:28
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搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
...operations
Thu Nov 14 23:05:13 [replslave] repl: syncedTo: Nov 14 23:08:10 5284e75a:1
查看服务状态
> db.printReplicationInfo();
this is a slave, printing slave replication info.
source: 192.168.0.1:27017
syncedTo: Sun Nov 17 2013 16:04:02 GMT+080...
Favicon dimensions? [duplicate]
...icon files can be
either 16×16 or 32×32 pixels in size,
and either 8-bit or 24-bit in color
depth (note that GIF files have a
limited, 256 color palette entries).
I think the best way is to use a 32x32 gif and test it with different browsers.
...