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Why are preprocessor macros evil and what are the alternatives?

... actually know what is going on. Replacement: Use enum or const T For "function-like" macros, because the debugger works on a "per source line where you are" level, your macro will act like a single statement, no matter if it's one statement or a hundred. Makes it hard to figure out what is goin...
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Is there a good reason to use upper case for SQL keywords? [closed]

...ited Oct 17 '14 at 16:09 hichris123 9,5151212 gold badges5050 silver badges6666 bronze badges answered Nov 16 '08 at 8:22 ...
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How do I use itertools.groupby()?

... edited Jul 29 at 20:57 Seanny123 5,70277 gold badges4949 silver badges100100 bronze badges answered Aug 10 '08 at 18:45 ...
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How do you use “git --bare init” repository?

... them to git and create the first commit. > cd /path/to/work > echo 123 > afile.txt > git add . > git config --local user.name adelphus > git config --local user.email adelphus@example.com > git commit -m "added afile" [master (root-commit) 614ab02] added afile 1 file changed,...
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__proto__ VS. prototype in JavaScript

... 123 Prototype property is created when a function is declared. For instance: function Person(d...
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Android. Fragment getActivity() sometimes returns null

... 123 It seems that I found a solution to my problem. Very good explanations are given here and here...
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Asynchronously wait for Task to complete with timeout

... Andrew ArnottAndrew Arnott 72.7k2424 gold badges123123 silver badges162162 bronze badges 87 ...
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How can I send an email by Java application using GMail, Yahoo, or Hotmail?

...o be mentioned String from = "test@gmail.com"; String pass ="test123"; // Recipient's email ID needs to be mentioned. String to = "ripon420@yahoo.com"; String host = "smtp.gmail.com"; // Get system properties Properties properties = System.getProperties(); // Setup mai...
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Is it safe to parse a /proc/ file?

...ent with the first piece. (I just demonstrated this -- try it yourself for fun.) /proc/mounts is atomic within a single read system call. So if you read the whole file all at once, you get a single consistent snapshot of the mount points on the system. However, if you use several read system calls -...
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How to get a variable name as a string in PHP?

... print_r( $match ); } $foo = "knight"; $bar = array( 1, 2, 3 ); $baz = 12345; varName( $foo ); varName( $bar ); varName( $baz ); ?> // Returns Array ( [0] => $foo [1] => foo ) Array ( [0] => $bar [1] => bar ) Array ( [0] => $baz [1] => baz ) It w...