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#include in .h or .c / .cpp?

... True, but doesn't the #ifndef _CALLBACK_H_, on the top of it, prevent the compiler in processing it more than once? – hytromo Feb 8 '14 at 12:25 ...
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C++ error: undefined reference to 'clock_gettime' and 'clock_settime'

...c version 2.17, the library linking -lrt is no longer required. The clock_* are now part of the main C library. You can see the change history of glibc 2.17 where this change was done explains the reason for this change: +* The `clock_*' suite of functions (declared in <time.h>) is now avai...
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In Scala how do I remove duplicates from a list?

...e part of the file name of interest. Once the map is constructed, you can call the values method to get an Iterable of values--the keys will all be distinct by construction. – Kipton Barros Dec 19 '12 at 19:47 ...
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Generating a drop down list of timezones with PHP

...generate your list. $tzlist = DateTimeZone::listIdentifiers(DateTimeZone::ALL); Also, I would use PHP's names for the 'timezones' and forget about GMT offsets, which will change based on DST. Code like that in phpbb is only that way b/c they are still supporting PHP4 and can't rely on the DateTim...
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Git: “Not currently on any branch.” Is there an easy way to get back on a branch, while keeping the

... hash of last commit. Checkout the branch you wish to be at, and git merge _hash_ – Daniel May 31 '12 at 13:31 BE REAL...
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Reading a binary file with python

...ve something to unpack is pretty trivial: import struct data = open("from_fortran.bin", "rb").read() (eight, N) = struct.unpack("@II", data) This unpacks the first two fields, assuming they start at the very beginning of the file (no padding or extraneous data), and also assuming native byte-or...
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How to get an MD5 checksum in PowerShell

...h = [System.BitConverter]::ToString($md5.ComputeHash([System.IO.File]::ReadAllBytes($someFilePath))) Starting in PowerShell version 4, this is easy to do for files out of the box with the Get-FileHash cmdlet: Get-FileHash <filepath> -Algorithm MD5 This is certainly preferable since it a...
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Pimpl idiom vs Pure virtual class interface

...by "value". Often, doesn't make sense to "copy" instances of the class at all. When it does make sense, a polymorphic "Clone" method is usually more appropriate. Examples: A Socket class, a Database class, a "policy" class, anything that would be a "closure" in a functional language. Both pImpl ...
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Launch Bootstrap Modal on page load

I don't know javascript at all. The bootstrap documentation says to 18 Answers 18 ...
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How to run SQL script in MySQL?

...ing '/' instead of '\' worked correctly for me. I got errors when I originally used '/'. This is what worked for me...source C:/Users/macombers/Downloads/midcoast_db.sql; – Zack Macomber Oct 3 '14 at 15:09 ...