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Python module os.chmod(file, 664) does not change the permission to rw-rw-r— but -w--wx----
...nge file mode.
permissions are a bit mask, for example, rwxrwx--- is 111111000 in binary, and it's very easy to group bits by 3 to convert to the octal, than calculate the decimal representation.
0644 (octal) is 0.110.100.100 in binary (i've added dots for readability), or, as you may calculate, 4...
How to write a scalable Tcp/Ip based server
...testing with this code and on a dual core opteron 2Ghz was able to max out 100Mbps ethernet, and that added an encryption layer on top of this code.
– Kevin Nisbet
May 22 '09 at 3:04
...
How do I create a unique constraint that also allows nulls?
... If you are using SQL Server 2008 or later, see the answer below with over 100 upvotes. You can add a WHERE clause to your Unique Constraint.
– Darren Griffith
Feb 8 '13 at 22:01
1...
What kinds of patterns could I enforce on the code to make it easier to translate to another program
... this a much bigger task for real languages than you expect. We have some 100 man-years invested in just DMS, and another 6-12 months in each "reliable" language definition (including the one we painfully built for PHP), much more for nasty languages such as C++. It will be a "hell of a learning e...
What is time_t ultimately a typedef to?
... another subject.
To answer paxdiablo's query, I'd say that it printed "19100" because the program was written this way (and I admit I did this myself in the '80's):
time_t now;
struct tm local_date_time;
now = time(NULL);
// convert, then copy internal object to our object
memcpy (&local_date...
What does the (unary) * operator do in this Ruby code?
...ialized with several arguments creates them as key value pairs:
Hash["a", 100, "b", 200] #=> {"a"=>100, "b"=>200}
So in your example this would lead to the following Hash:
{"first_name"=>"mickey", "last_name"=>"mouse", "county"=>"usa"}
...
传感器组件 · App Inventor 2 中文网
...传感器
不可见组件，可检测振动并使用 SI 单位(m/s2)在三个维度上近似测量加速度。其组成部分是：
X分量：当手机静止在平坦表面上时为 0，当手机倾斜时为正向右（即左侧抬起），当手机倾斜到右侧时为负向左（即，...
Is there a way to define a min and max value for EditText in Android?
...ass
percentage_edit_text.filters = arrayOf(Utilities.InputFilterMinMax(1, 100))
This EditText allows from 1 to 100.
Then use this from your XML
android:inputType="number"
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Label points in geom_point
...,
point.padding = 0.5,
force = 100,
segment.size = 0.2,
segment.color = "grey50",
direction = "x") +
geom_label_repel(data = subset(nba, PTS < 18),
nudge_y = 16...
format statement in a string resource file
...
formatPrice = String.format(context.getString(R.string.price), unitPrice/100.0)
Log.d("Double_CharSequence", "$formatPrice")
D/Double_CharSequence: Price :U$ 99,90
For an even better result, we can do so
<string name="price_to_string">Price:U$ %1$s</string>
var formatPrice: CharSe...