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std::unique_lock or std::lock_guard?
...be dwarfed by the cost of actually locking and unlocking the mutex (if the compiler didn't optimize that overhead away, which could be possible).
– Grizzly
Dec 19 '13 at 9:47
6
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Which is better option to use for dividing an integer number by 2?
... "Implementation defined" means that the implementer of the compiler got to choose among several implementation choices, usually with substantial constraints. Here, one constraint is that the % and / operators must be consistent for both positive and negative operands so that (a/b)*b+...
How can I get the external SD card path for Android 4.0+?
...ing s = "";
try {
final Process process = new ProcessBuilder().command("mount")
.redirectErrorStream(true).start();
process.waitFor();
final InputStream is = process.getInputStream();
final byte[] buffer = new byte[1024];
while (is.read(buf...
Using Django time/date widgets in custom form
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The growing complexity of this answer over time, and the many hacks required, probably ought to caution you against doing this at all. It's relying on undocumented internal implementation details of the admin, is likely to break again in...
ASP.NET MVC: No parameterless constructor defined for this object
...P.NET MVC Framework ' book. On page 132, in accordance with the author's recommendation, I downloaded the ASP.NET MVC Futures assembly, and added it to my MVC project. [Note: This could be a red herring.]
...
Alternatives to dispatch_get_current_queue() for completion blocks in iOS 6?
I have a method that accepts a block and a completion block. The first block should run in the background, while the completion block should run in whatever queue the method was called.
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Background task, progress dialog, orientation change - is there any 100% working solution?
...ading. Orientation changes, Activity is restarted and then my AsyncTask is completed - I want to dismiss the progess dialog and start a new Activity. But calling dismissDialog sometimes throws an exception (probably because the Activity was destroyed and new Activity hasn't been started yet).
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How to use auto-layout to move other views when a view is hidden?
... Tim. I set a constraint of 0 with a higher priority to avoid constraint incompatibilities, but now I realise there's the problem with the double spacing. I didn't have that problem because I never show the two views together (my case: |-[otherViews]-[eitherThis][orThis]-|), but I'd run into that pr...
Circular (or cyclic) imports in Python
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There was a really good discussion on this over at comp.lang.python last year. It answers your question pretty thoroughly.
Imports are pretty straightforward really. Just remember the following:
'import' and 'from xxx import yyy' are executable statements. They execu...
What does 'var that = this;' mean in JavaScript?
...ind a grumpy old man who yells at kids to get off of his lawn." - blogging.compendiumblog.com/blog/software-for-humans/0/0/… ;-p
– David Murdoch
Feb 3 '11 at 20:30
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