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Installing Python packages from local file system folder to virtualenv with pip
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Best practices for circular shift (rotate) operations in C++
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105
See also an earlier version of this answer on another rotate question with some more details a...
How to concatenate twice with the C preprocessor and expand a macro as in “arg ## _ ## MACRO”?
...ou need the equivalent trick with the stringizing operator too.
Section 6.10.3 of the C99 standard covers 'macro replacement', and 6.10.3.1 covers 'argument substitution'.
After the arguments for the invocation of a function-like macro have been identified,
argument substitution takes place. ...
Explicitly calling return in a function or not
...(x) return(vector(length=x,mode="numeric")))(x)
,repeats)) }
maxlen <- 1000
reps <- 10000
along <- seq(from=1,to=maxlen,by=5)
ret <- sapply(along,FUN=bench_ret2,repeats=reps)
nor <- sapply(along,FUN=bench_nor2,repeats=reps)
res <- data.frame(N=along,ELAPSED_RET=ret["elapsed",],ELA...
Managing constructors with many parameters in Java
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Of course with static imports you never even have to "see" these "builders" at all. For example, you could have static methods name(String ...
Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple
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edited Dec 3 '10 at 2:36
answered Dec 2 '10 at 23:40
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Python string class like StringBuilder in C#?
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103
There is no one-to-one correlation. For a really good article please see Efficient String Con...
C++使用OLE/COM高速读写EXCEL的源码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...e/archive/2011/09/25/2190485.html
http://blog.sina.com.cn/s/blog_6e51df7f01015cci.html
感谢原作者的无私奉献。
通过VC实现对Excel表格的操作的方法有多种，如：通过ODBC数据库实现，通过解析Excel表格文件，通过OLE/COM的实现。本文主要研究通过O...
node.js require all files in a folder?
...irSync instead.
– Rafał Sobota
Jan 10 '12 at 22:35
4
Thanks, ran into this same problem today an...
Is there a short contains function for lists?
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Lauritz V. Thaulow
38.4k1010 gold badges6161 silver badges8686 bronze badges
answered Oct 17 '12 at 12:21
defuzdefuz
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