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How do function pointers in C work?
...of some functions to take advantage of SSE, popcnt, AVX, etc. At startup, set your function pointers to the best version of each function for the current CPU. In your other code, just call through the function pointer instead of having conditional branches on the CPU features everywhere. Then you...
How to avoid scientific notation for large numbers in JavaScript?
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One can set maximumSignificantDigits option (max 21) to format very small decimals, ie: js console.log( myNumb.toLocaleString('fullwide', { useGrouping: true, maximumSignificantDigits:6}) );
– Sir. MaNiAl
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seek() function?
...n file.
It's important to note that its syntax is as follows:
fp.seek(offset, from_what)
where fp is the file pointer you're working with; offset means how many positions you will move; from_what defines your point of reference:
0: means your reference point is the beginning of the file
1: mea...
How do I discover memory usage of my application in Android?
...evel MemoryInfo structure with all of this data:
/** The proportional set size for dalvik. */
public int dalvikPss;
/** The private dirty pages used by dalvik. */
public int dalvikPrivateDirty;
/** The shared dirty pages used by dalvik. */
public int dalvikSharedDirty;
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Shell command to tar directory excluding certain files/folders
...it off by default on most unix based OS's. From Bash manual: "globstar: If set, the pattern ** used in a filename expansion context will match all files and zero or more directories and subdirectories. If the pattern is followed by a ‘/’, only directories and subdirectories match."
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What does the constant 0.0039215689 represent?
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Coding Style Guide for node.js apps? [closed]
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For Coffee-Script, where bad indents means compilation errors
use
:set tabstop=2
:set shiftwidth=2
:set expandtab
popular coffee projects, zombie, brunch uses this setup for indentations.
Edit:
Actually, just use this! https://github.com/paulmillr/code-style-guides (one of the main contr...
SQL DELETE with INNER JOIN
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How to set Oracle's Java as the default Java in Ubuntu?
...rc file, it should automatically point to the new version.
If you want to set JAVA_HOME environment variables globally and at system level means use should set in /etc/environment file.
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How to recursively delete an entire directory with PowerShell 2.0?
...rse parameter just doesn't work correctly when you try deleting a filtered set of files recursively. For killing a single dir and everything below it seems to work fine.
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