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What is the difference between char s[] and char *s?
... |
edited Mar 11 '16 at 14:28
nbro
10.9k1717 gold badges7676 silver badges140140 bronze badges
answered...
Android: upgrading DB version and adding new table
...ur onCreate() method as well or newly installed apps will lack the table.
4. How to deal with multiple database changes over time
When you have successive app upgrades, several of which have database upgrades, you want to be sure to check oldVersion:
onUpgrade(SQLiteDatabase db, int oldVersion, ...
Printf width specifier to maintain precision of floating-point value
...DIG;
double OneSeventh = 1.0/7.0;
printf("%.*e\n", Digs, OneSeventh);
// 1.428571428571428492127e-01
But let's dig deeper ...
Mathematically, the answer is "0.142857 142857 142857 ...", but we are using finite precision floating point numbers.
Let's assume IEEE 754 double-precision binary.
So ...
How do I parallelize a simple Python loop?
...est using the multiprocessing module instead:
pool = multiprocessing.Pool(4)
out1, out2, out3 = zip(*pool.map(calc_stuff, range(0, 10 * offset, offset)))
Note that this won't work in the interactive interpreter.
To avoid the usual FUD around the GIL: There wouldn't be any advantage to using thre...
In STL maps, is it better to use map::insert than []?
...
241
When you write
map[key] = value;
there's no way to tell if you replaced the value for key, o...
How to access and test an internal (non-exports) function in a node.js module?
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edited Sep 11 at 10:40
Tomasz Smykowski
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...
Immutability of Strings in Java
...lease? That will make my understanding clear.
– Light_handle
Oct 12 '09 at 17:30
17
I've never se...
How to [recursively] Zip a directory in PHP?
...
254
Here is a simple function that can compress any file or directory recursively, only needs the zi...
Read file from line 2 or skip header row
...
466
with open(fname) as f:
next(f)
for line in f:
#do something
...
How can I use PowerShell with the Visual Studio Command Prompt?
...on7\Tools folder.
pushd 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Tools'
cmd /c "vsvars32.bat&set" |
foreach {
if ($_ -match "=") {
$v = $_.split("="); set-item -force -path "ENV:\$($v[0])" -value "$($v[1])"
}
}
popd
write-host "`nVisual Studio 2015 Command Prom...