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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...ommit 45e2ef2, commit 79b0edc, commit 840624f, commit 32a6707, commit 440bf91, commit 0b408ca, commit 2eabd38 (28 Oct 2019), and commit 1bcef51, commit ecde49b (05 Oct 2019) by brian m. carlson (bk2204).
(Merged by Junio C Hamano -- gitster -- in commit 28014c1, 10 Nov 2019)
t/oid-info: add em...
What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
...
91
The order of evaluation of subexpressions, including
the arguments of a function call and
ope...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...件包Time::HiRes、File::Tail和rrdtool
首先在http://search.cpan.org
搜索:Time::HiRes和File::Tail：并下载
http://oss.oetiker.ch/rrdtool/pub/?M=D 下载rrdtool-1.2.23.tar.gz
1、安装Time::HiRes
tar zxvf Time-HiRes-1.9707.tar.gz
cd Time-HiRes-1.9707
perl Makefile.PL
make
ma...
How to convert number to words in java
....convert(90));
System.out.println("*** " + FrenchNumberToWords.convert(91));
System.out.println("*** " + FrenchNumberToWords.convert(97));
System.out.println("*** " + FrenchNumberToWords.convert(100));
System.out.println("*** " + FrenchNumberToWords.convert(101));
System.out.prin...
What is a “cache-friendly” code?
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91
Optimizing cache usage largely comes down to two factors.
Locality of Reference
The first facto...
Controlling fps with requestAnimationFrame?
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Hydroper
2,91833 gold badges1818 silver badges4848 bronze badges
answered Nov 4 '13 at 16:25
markEmarkE
...
Is MATLAB OOP slow or am I doing something wrong?
...operty: 0.12992 1.30
classdef property with getter: 1.39912 13.99
+pkg.nop() function: 0.87345 8.73
+pkg.nop() from inside +pkg: 0.80501 8.05
Java obj.nop(): 1.86378 18.64
Java nop(obj): 0.22645 2.26
Java feval(...
Fastest way to determine if an integer's square root is an integer
... long int int64;
int start[1024] =
{1,3,1769,5,1937,1741,7,1451,479,157,9,91,945,659,1817,11,
1983,707,1321,1211,1071,13,1479,405,415,1501,1609,741,15,339,1703,203,
129,1411,873,1669,17,1715,1145,1835,351,1251,887,1573,975,19,1127,395,
1855,1981,425,453,1105,653,327,21,287,93,713,1691,1935,301,551,...
C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...不能肯定最好的做法，第45条介绍了如何执行一次恰当的搜索来找到特定的元素。
2. 为将要被修改的元素做一份拷贝，。在map和multimap的情况下，请记住，不要把该拷贝的第一个部分声明为const。毕竟，你想要改变它。
3. 修改...
地图组件（高德地图） · App Inventor 2 中文网
... 开通VIP 搜索 地图组件（高德地图）
地图组件（高德地图）
地图（基础容器，默认“高德地图...