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How does free know how much to free?

...to make allocation more efficient) is why you can sometimes write a little bit beyond the end of your requested space without causing problems (still, don't do that, it's undefined behaviour and, just because it works sometimes, doesn't mean it's okay to do it). (a) I've written implementations o...
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How is the undo tree used in Vim?

...n the tree in chronological or reverse-chronological order (which can be a bit confusing, because it can jump arbitrarily between undo branches, but if you do g- long enough you'll always get where you need to go eventually). :earlier and :later take a time descriptor like 7m or 1h; again this can ...
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in javascript, how can i get the last character in a string [duplicate]

If I have the following variable in javascript 7 Answers 7 ...
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What is Linux’s native GUI API?

Both Windows (Win32 API) and OS X (Cocoa) have their own APIs to handle windows, events and other OS stuff. I have never really got a clear answer as to what Linux’s equivalent is? ...
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What is size_t in C?

...SO C standard (C99), size_t is an unsigned integer type of at least 16 bit (see sections 7.17 and 7.18.3). size_tis an unsigned data type defined by several C/C++ standards, e.g. the C99 ISO/IEC 9899 standard, that is defined in stddef.h.1 It can be further imported by inclusion o...
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How do I write a short literal in C++?

...ntanything, as it is a signed type. And it is not required to be either 16 bits or the same type as an std::int16_t... which itself is not even required to exist in a given implementation if the platform cannot supply the exact-width type. The core idea of this answer is good, but it's devalued by t...
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How can I get a count of the total number of digits in a number?

....NET Framework 4.7.2 and .NET Core 2.2; for x86 and x64 platforms, on a 64-bit Intel Processor machine, with Windows 10, and with VS2017 v.15.9.17. The following 4 cases have the same effect on performance results: .NET Framework (x86) Platform = x86 Platform = AnyCPU, Prefer 32-bit is checked in...
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How do I create a unique ID in Java? [duplicate]

... a human readable unique ID ... that would increase the difficulty quite a bit – aperkins Sep 7 '09 at 15:03 1 ...
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Read/Write 'Extended' file properties (C#)

...C# e.g. Comment, Bit Rate, Date Accessed, Category etc that you can see in Windows explorer. Any ideas how to do this? EDIT: I'll mainly be reading/writing to video files (AVI/DIVX/...) ...
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Can you use Microsoft Entity Framework with Oracle? [closed]

...1.2.0.3 (ODAC 11.2) Release Notes: http://docs.oracle.com/cd/E20434_01/doc/win.112/e23174/whatsnew.htm#BGGJIEIC More documentation on Linq to Entities and ADO.NET Entity Framework: http://docs.oracle.com/cd/E20434_01/doc/win.112/e23174/featLINQ.htm#CJACEDJG Note: ODP.NET also supports Entity SQL. ...