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When should I use malloc in C and when don't I?
...hen you don't know the size of the data you're working with in advance. At least that's one of the main reasons for using malloc. In your example with a simple string that you already know the size of at compile time (plus you don't want to modify it), it doesn't make much sense to dynamically alloc...
How to wait for all goroutines to finish without using time.Sleep?
...ync.waitGroup (wg) is the canonical way forward, it does require you do at least some of your wg.Add calls before you wg.Wait for all to complete. This may not be feasible for simple things like a web crawler, where you don't know the number of recursive calls beforehand and it takes a while to ret...
Should I choose ActivePerl or Strawberry Perl for Windows? [duplicate]
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After having used both for years, I'd say, for me at least, ActivePerl is a much more convenient choice. The PPM installer included in ActivePerl allows you to add alternative PPM repositories which will give you access to almost all useful Perl modules available on CPAN - but ...
What happens if I define a 0-size array in C/C++?
...says absolutely nothing of the sort. It only says that it must generate at least one diagnostic message when given source code containing an array with a zero-length constant expression for its size. The only circumstance under which the standard forbids a compiler to build a binary is if it encount...
Do you debug C++ code in Vim? How? [closed]
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In contrast with the other answers, there are at least three options that do just what you require: clewn, pyclewn and vimgdb.
All three projects are related. vimgdb is a patch against Vim and requires Vim to be recompiled. clewn is a standalone program that communicates w...
Is there a typical state machine implementation pattern?
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Very nice way to get started, at least beginning point for me. One remark, the first line of run_state() has a naughty "." that shouldn't be there.
– Atilla Filiz
Jun 22 '10 at 14:29
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How to paste yanked text into the Vim command line
...he Vim command line ("command mode"), use Ctrl+R followed by +. For me, at least on Ubuntu, Shift+Ins is not working.
PS: I am not sure why Ctrl+R followed by *, which is theoretically the same as Ctrl+R followed by + doesn't seem to work always. I searched and discovered the + version and it seems...
Javascript when to use prototypes
...there is no need to use new with it). 3. Calling any function JS causes at least one object to be created in memory - it's called the arguments object and stores the arguments passed in the call: developer.mozilla.org/en/JavaScript/Reference/…
– Daniel Earwicker
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Image Processing: Algorithm Improvement for 'Coca-Cola Can' Recognition
...ly so. It obviously doesn't address your can-bottle discrimination, but at least you'll have your logos.
(Update: for bottle recognition I would look for coke (the brown liquid) adjacent to the logo -- that is, inside the bottle. Or, in the case of an empty bottle, I would look for a cap which wi...
Where to host an Open Source Project: CodePlex, Google Code, SourceForge? [closed]
... request is fantastic, especially for small/one-off patches.
Last but not least, SourceForge is still WAY too complex for my taste. It's not a bad host, but it really shows it's age IMHO. That being said, it's still robust and has many mirrors world wide. Also the Bug Tracker is much more sophistic...