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Why malloc+memset is slower than calloc?
...malloc() and calloc() are mostly there to take small allocations (anything from 1 byte to 100s of KB) and group them into larger pools of memory. For example, if you allocate 16 bytes, malloc() will first try to get 16 bytes out of one of its pools, and then ask for more memory from the kernel when...
How do I create a Bash alias?
I'm on OSX and I need to put something like this, alias blah="/usr/bin/blah" in a config file but I don't know where the config file is.
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No newline at end of file
... data which isn't human-readable).
Because of this convention, many tools from that era expect the ending newline, including text editors, diffing tools, and other text processing tools. Mac OS X was built on BSD Unix, and Linux was developed to be Unix-compatible, so both operating systems have in...
How do I determine the size of my array in C?
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Wait, so there's no way to access the array directly from a pointer and see its size? New to C here.
– sudo
Dec 1 '13 at 6:37
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Start service in Android
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Java code for start service:
Start service from Activity:
startService(new Intent(MyActivity.this, MyService.class));
Start service from Fragment:
getActivity().startService(new Intent(getActivity(), MyService.class));
MyService.java:
import android.app.Service...
Running multiple AsyncTasks at the same time — not possible?
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AsyncTask uses a thread pool pattern for running the stuff from doInBackground(). The issue is initially (in early Android OS versions) the pool size was just 1, meaning no parallel computations for a bunch of AsyncTasks. But later they fixed that and now the size is 5, so at most 5 ...
iOS Image Orientation has Strange Behavior
.... I'll have to test every scenario, images take straight up, images taken from the internet, images taken rotated, etc. Thanks a ton!
– Boeckm
May 15 '12 at 13:50
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How do I trap ctrl-c (SIGINT) in a C# console app
... up since it's entirely true. I'll edit Jonas his answer to clarify people from thinking the way Jonathon did (which is not inherently bad but not as Jonas meant his answer)
– M. Mimpen
Dec 2 '13 at 11:43
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Preventing scroll bars from being hidden for MacOS trackpad users in WebKit/Blink
...fault behaviour on MacOS since 10.7 (Mac OS X Lion) is to hide scroll bars from trackpad users when they're not in use. This can be confusing ; the scroll bar is often the only visual cue that an element is scrollable.
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Why doesn't JavaScript support multithreading?
...ure.
Thread-safety of data is guaranteed because all data communicated to/from the worker is serialized/copied.
For more info, read:
http://www.whatwg.org/specs/web-workers/current-work/
http://ejohn.org/blog/web-workers/
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