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Swapping two variable value without using third variable
...mp;y);
# endif
}
return x + y;
}
Compiled using:
gcc -Os main.c -o swap
The xor version takes
real 0m2.068s
user 0m2.048s
sys 0m0.000s
Where as the version with the temporary variable takes:
real 0m0.543s
user 0m0.540s
sys 0m0.000s
...
Does Python SciPy need BLAS?
...uild and installation instructions, but the instructions there now rely on OS binary distributions. To build SciPy (and NumPy) on operating systems without precompiled packages of the required libraries, you must build and then statically link to the Fortran libraries BLAS and LAPACK:
mkdir -p ~/sr...
Accessing localhost (xampp) from another computer over LAN network - how to?
...ll my files on my desktop computer (192.168.1.56) and want to access localhost over there from another computer (192.168.1.2).
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Does Python have a ternary conditional operator?
If Python does not have a ternary conditional operator, is it possible to simulate one using other language constructs?
26 ...
PostgreSQL: How to make “case-insensitive” query
Is there any way to write case-insensitive queries in PostgreSQL, E.g. I want that following 3 queries return same result.
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Emulator error: This AVD's configuration is missing a kernel file
...the Intel emulator here: HAXM Speeds Up the Android Emulator. Roman Nurik posts here that the Intel emulator with Android 4.3 is "blazing fast".
Alternative 2
In the comments of the post above you can find a reference to Genymotion which claims to be the "fastest Android emulator for app testing an...
Switching from zsh to bash on OSX, and back again?
...default back and forth is a bad idea so this is the perfect solution!!! kudos!!
– Bob Roberts
Jan 20 '17 at 4:55
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show 4 more comments
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Can't install Ruby under Lion with RVM – GCC issues
Most questions regarding this problem are due to missing Xcode; I have Xcode 4.2 installed.
16 Answers
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Where in an Eclipse workspace is the list of projects stored?
...ace>\.metadata\.plugins\org.eclipse.core.resources\.projects\
Linux / osx:
<workspace>/.metadata/.plugins/org.eclipse.core.resources/.projects/
Your project can exist outside the workspace, but all Eclipse-specific metadata are stored in that org.eclipse.core.resources\.projects direct...
How can I programmatically get the MAC address of an iphone
...
NOTE As of iOS7, you can no longer retrieve device MAC addresses. A fixed value will be returned rather than the actual MAC
Somthing I stumbled across a while ago. Originally from here I modified it a bit and cleaned things up.
IPA...