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Best way to show a loading/progress indicator?
...harSequence title, CharSequence message); Passing title parameter as empty string removes the title: ProgressDialog.show(context, "", "Loading..");
– Rajendra
Oct 11 '12 at 15:32
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Go > operators
...ther languages, but because Go is a safer language than C/C++ it does some extra work when the shift count is a number.
Shift instructions in x86 CPUs consider only 5 bits (6 bits on 64-bit x86 CPUs) of the shift count. In languages like C/C++, the shift operator translates into a single CPU instru...
Why are Docker container images so large?
...in the Dockerfile writes a new layer in the image and every layer requires extra space on disk. In order to keep the number layers to a minimum, any file manipulation like install, moving, extracting, removing, etc, should ideally be made under a single RUN instruction
FROM fedora:latest
RUN yum -y...
How are virtual functions and vtable implemented?
...he difference should be neglible. For a class which just contains a single char member, or no members at all, the difference might be notable.
Apart from that, it is important to note that not every call to a virtual function is a virtual function call. If you have an object of a known type, the co...
How do I pull from a Git repository through an HTTP proxy?
... When I add this environment variable, msysgit doesn't print out anything extra. :(
– Andrew Arnott
Mar 29 '09 at 23:22
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What is the easiest way to initialize a std::vector with hardcoded elements?
...typesafe, compile time constant
template <typename T, std::size_t N>
char (&sizeof_array( T(&)[N] ))[N]; // declared, undefined
#define ARRAY_SIZE(x) sizeof(sizeof_array(x))
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Hidden features of Scala
... "Hello, world")
The right hand expression creates a Tuple3[Int, Double, String] which can match the pattern (a, b, c).
Most of the time your patterns use extractors that are members of singleton objects. For example, if you write a pattern like
Some(value)
then you're implicitly calling the ...
Best way to get identity of inserted row?
...serted in the SQL code you sent to the database. If triggers go and create extra rows, they won't cause the wrong value to get returned. Hooray
IDENT_CURRENT returns the last ID that was inserted by anyone. If some other app happens to insert another row at an unforunate time, you'll get the ID of ...
Where do I use delegates? [closed]
...which contains the desired time representation function as the value of an extra field, and which delegates all other field requests to the original connection object.
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Shortest distance between a point and a line segment
...community wiki
5 revs, 3 users 97%char m
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