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CMake: How to build external projects and include their targets

...roject A's import file since it's only created once Project A has been installed. If you want to include Project A's import file, you'll have to install Project A manually before invoking Project B's CMakeLists.txt - just like any other third-party dependency added this way or via find_file / find_...
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How do I choose between Semaphore and SemaphoreSlim?

...uld be used when "wait times are expected to be very short". That would usually dovetail nicely with the idea that the slim version is more lightweight for most of the trade offs. share | improve th...
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Invalidating JSON Web Tokens

...s an emergency, or a user token was compromised, one thing you could do is allow the user to change an underlying user lookup ID with their login credentials. This would render all associated tokens invalid, as the associated user would no longer be able to be found. I also wanted to note that it is...
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Generating a unique machine id

...yourself and hash it to an arbitrary length. See the PDF specification for all SMBIOS structures available. To query the SMBIOS info from Windows you could use EnumSystemFirmwareEntries, EnumSystemFirmwareTables and GetSystemFirmwareTable. IIRC, the "unique id" from the CPUID instruction is deprec...
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Run MySQLDump without Locking Tables

...bles you can use the --single-transaction option: --lock-tables, -l Lock all tables before dumping them. The tables are locked with READ LOCAL to allow concurrent inserts in the case of MyISAM tables. For transactional tables such as InnoDB and BDB, --single-transaction is a much better option, be...
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No == operator found while comparing structs in C++

...mpatibility. C compatibility doesn't require an operator==, however. Globally, I prefer what C++ does to what Java does. (I don't know C#, so maybe that's better.) – James Kanze Apr 25 '11 at 14:56 ...
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Hexadecimal To Decimal in Shell Script

...not on his list: [ghoti@pc ~]$ dc -e '16i BFCA3000 p' 3217698816 But if all you want to do is subtract, why bother changing the input to base 10? [ghoti@pc ~]$ dc -e '16i BFCA3000 17FF - p 10o p' 3217692673 BFCA1801 [ghoti@pc ~]$ The dc command is "desk calc". It will also take input from st...
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How to make an HTML back link?

...way to create an <a> tag that links to the previous web page? Basically a simulated back button, but an actual hyperlink. Client-side technologies only, please. ...
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What is this date format? 2011-08-12T20:17:46.384Z

... @MarounMaroun: Basically we want those literal characters. It may not be necessary for T (I can't remember how SimpleDateFormat handles unknown specifiers) but for Z we want it to be the character 'Z' rather than "a UTC offset value" (e.g. "00")...
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Does Git warn me if a shorthand commit ID can refer to 2 different commits?

...en testing this, you need a minimum of 4-digit SHA1, because of int minimum_abbrev = 4 in environment.c. (Thanks @devnull for pointing that out!) share | improve this answer | ...