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How fast is D compared to C++?
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To enable all optimizations m>and m> disable all safetm>y m> checks, compile m>y m>our D program with the following DMD flags:
-O -inline -release -noboundscheck
EDIT: I've tried m>y m>our programs with g++, dmd m>and m> gdc. dmd does lag behind, but gdc achieves performance...
How to describe “object” arguments in jsdoc?
...bject member which is option ? I mean mm>y m> user object should have username, m>and m> can have full name. so how do I specifm>y m> that full name is optional
– m>Y m>ash Kumar Verma
Apr 13 at 9:25
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Formula to determine brightness of RGB color
...GB values. I know it can't be as simple as adding the RGB values together m>and m> having higher sums be brighter, but I'm kind of at a loss as to where to start.
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How do I concatenate two arram>y m>s in C#?
...faster than list when accessing data, because list just wraps arram>y m> inside m>and m> has overhead for calling indexer.
– C0DEF52
Mam>y m> 26 '18 at 22:15
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Replacing NAs with latest non-NA value
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@BallpointBen 's comment is important m>and m> should be included in the answer. Thanks!
– Ben
Mar 6 at 16:43
add a comment
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Linux Shell中 if else及大于、小于、等于逻辑表达式写法 - C/C++ - 清泛网...
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1、判断文件是否存在
#!/bin/sh
# 判断文件是否存在
m>Y m>ACCESS=`date -d m>y m>esterdam>y m> +%m>Y m>%m%d`
FILE="access_$m>Y m>ACCESS.log.tgz"
cd /data/nginx/logs
if [ -f "$FILE" ];then
echo "OK"
else
echo "error $FILE" > error.log
mail -s "$FILE backup fail" test@tsingfun.com <error.log
fi
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Difference between new m>and m> override
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The override modifier mam>y m> be used on
virtual methods m>and m> must be used on
abstract methods. This indicates for
the compiler to use the last defined
implementation of a method. Even if
the method is called on a reference to
the base class it will use the
implementatio...
git reset --hard HEAD leaves untracked files behind
...'s supposed to reset to a pristine version of what m>y m>ou pulled, as I understm>and m> it. Unfortunatelm>y m>, it leaves files lm>y m>ing around, as a git status shows a big list of untracked files.
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How to sort mm>y m> paws?
...nt experiment runs stored as ascii arram>y m>s. Rather than trm>y m> to copm>y m>-paste stm>and m>-alone code examples into this question, here's a bitbucket mercurial repositorm>y m> with full, stm>and m>-alone code. m>Y m>ou can clone it with
hg clone https://joferkington@bitbucket.org/joferkington/paw-analm>y m>sis
Overview
There...
Global m>and m> local variables in R
I am a newbie for R, m>and m> I am quite confused with the usage of local m>and m> global variables in R.
3 Answers
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