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How are software license keys generated?
...at will appear to work but fail on a future version due to a typographical error.
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Understanding reference counting with Cocoa and Objective-C
...ember to release any acquired resources inside of code is both tedious and error-prone. Objective-C introduces another concept aimed at making this much easier: Autorelease Pools. Autorelease pools are special objects that are installed on each thread. They are a fairly simple class, if you look up ...
CSS :after not adding content to certain elements
... since their HTML definitions do not allow any content. This is a category error. The syntax rules of a markup language do not restrict what you can do in CSS
To conclude, :after and :before are currently not usable for empty elements (except marginally for hr), but this is mainly due to implementa...
C++ templates Turing-complete?
... even has MPL aka (Meta Programming Library). But try debugging a compiler error in your template code and you will be in for a long hard ride.
But a good practical example of it being used for something useful:
Scott Meyers has been working extensions to the C++ language (I use the term loosely...
How to loop through file names returned by find?
...a line.
"If the failglob shell option is set, and no matches are found, an error message is printed and the command is not executed." (from Bash Manual above)
shell option globstar: "If set, the pattern ‘**’ used in a filename expansion context will match all files and zero or more directories a...
Differences between lodash and underscore [closed]
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I'm getting error 500 on the Lo-Dash vs Underscore benchmark link
– Hylle
Jan 7 '19 at 12:05
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Is there a constraint that restricts my generic method to numeric types?
...m(1L, 2, 3, 4, 5);
NumericPolicies.Instance.Sum("www", "") // compile-time error.
The solution is compile-time safe. CityLizard Framework provides compiled version for .NET 4.0. The file is lib/NETFramework4.0/CityLizard.Policy.dll.
It's also available in Nuget: https://www.nuget.org/packages/Cit...
Reordering of commits
... rebase --continue to move on. These instructions are also provided by the error message printed when the conflict occurs.
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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
...RUE),
covFalse((short)FALSE),
covOptional((long)DISP_E_PARAMNOTFOUND, VT_ERROR);
CApplication CExcelOp::m_app;
//初始化EXCEL文件，
BOOL CExcelOp::InitExcel()
{
BOOL bRtn =FALSE ;
TCHAR* ptchsExcel[]={
_T("Excel.Application") //创建Excel 2000服务器(启动Excel)
,_T("...
Create Generic method constraining T to an Enum
... MyEnum.Okay
Thing.GetEnumFromString("AnotherInvalid", 0); // compiler error, not an Enum
}
Unfortunately, this means having this part of your code written in MSIL instead of C#, with the only added benefit being that you're able to constrain this method by System.Enum. It's also kind of a bum...