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Bash empty array expansion with `set -u`
...
$ bash --version | head -n 1
GNU bash, version 4.4.19(1)-release (x86_64-pc-linux-gnu)
$ set -u
$ arr=()
$ echo "foo: '${arr[@]}'"
foo: ''
There is a conditional you can use inline to achieve what you want in older versions: Use ${arr[@]+"${arr[@]}"} instead of "${arr[@]}".
$ function args...
Does the default constructor initialize built-in types?
... // Uses value-initialization feature instead
assert(c.x == 0);
C *pc = new C(); // Does not use default constructor for `C()` part
// Uses value-initialization feature instead
assert(pc->x == 0);
The behavior of () initializer is different in some respects between C++9...
Why should I use core.autocrlf=true in Git?
...this scenario) are converted to CRLF line endings on checkout to a Windows PC. All files are converted back to LF line endings on commit from a Windows PC. The way to get in trouble is to checkout initially to a Windows PC with the wrong core.autocrlf setting (which is entirely too easy to do).
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Convert UTC/GMT time to local time
...ing a C# application for a web-service client. This will run on Windows XP PC's.
11 Answers
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What does a type followed by _t (underscore-t) represent?
...tforms -- so whose int are you conforming to? (Although, these days, most PC-centric development treats it as 32 bits, much stuff for non-PC development still treat int's as 16 bits).
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imp...
创业者只需要一种素质：成为某个领域的意见领袖 - 资讯 - 清泛网 - 专注C/C...
...结吧，不敢抬头看人，是万万不行的！现在就拿起电话报名各种靠谱不靠谱的创业大赛，来一场充满激情的路演吧，不为投资，只为锻炼口才。或着参加各种活动，来个义务演讲，日积月累你一定会有自己的风格。
二、意见领...
Which version of C# am I using
...bly.ImageRuntimeVersion does not tell you the right version number - on my PC, .NET 4.6 RC is installed but Assembly.ImageRuntimeVersion reports v4.0.30319
– Matt
Jul 14 '15 at 10:55
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Force drop mysql bypassing foreign key constraint
...mmission_history`, `coupon`, `email_templates`, `infopages`, `invoice`, `m_pc_xref`, `member`, `merchant`, `message_templates`, `mnotification`, `mshipping_address`, `notification`, `order`, `orderdetail`, `pattributes`, `pbrand`, `pcategory`, `permissions`, `pfeatures`, `pimage`, `preport`, `produc...
How to allow only numeric (0-9) in HTML inputbox using jQuery?
... allows some letter, like a and e. it seems like the keypad numbers on the pc is letters on the iMac and the Mac keyboard is the same as the regular numbers. anyone know how to make it work on both mac and pc?
– Volmar
Aug 10 '10 at 9:39
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How to print colored text in Python?
...s a good introduction.
If you are not using extended ASCII (i.e. not on a PC), you are stuck with the ascii characters below 127, and '#' or '@' is probably your best bet for a block. If you can ensure your terminal is using a IBM extended ascii character set, you have many more options. Characters...