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One Activity and all other Fragments [closed]
...t section.
That said, having a single Activity also introduces a lot of complexities. Let's say you have an edit form, and for some of the items the user needs to select, or create, requires them to go to a new screen. With activities we'd just call the new screen with startActivityForResult bu...
Does the 'mutable' keyword have any purpose other than allowing the variable to be modified by a con
...terface, like your locking example. Another example would be a class that computes a value the first time it is requested, and caches the result.
Since c++11 mutable can be used on a lambda to denote that things captured by value are modifiable (they aren't by default):
int x = 0;
auto f1 = [=](...
Transpose/Unzip Function (inverse of zip)?
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This does not work in Python3. See: stackoverflow.com/questions/24590614/…
– Tommy
Jul 5 '14 at 21:35
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When should assertions stay in production code? [closed]
There's a discussion going on over at comp.lang.c++.moderated about whether or not assertions, which in C++ only exist in debug builds by default, should be kept in production code or not.
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Eclipse: Referencing log4j.dtd in log4j.xml
... edited May 23 '17 at 11:54
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111 silver badge
answered Jun 1 '12 at 15:17
Jack LeowJack Leow
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Best practices for in-app database migration for Sqlite
...pdates in a transaction so that if anything goes wrong, the changes aren't committed.
For making schema changes, sqlite supports "ALTER TABLE" syntax for certain operations (renaming the table or adding a column). This is an easy way to update existing tables in-place. See the documentation here:...
How can I position my div at the bottom of its container?
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How do I rename a column in a SQLite database table?
...s was just fixed with 2018-09-15 (3.25.0)
Enhancements the ALTER TABLE command:
Add support for renaming columns within a table using ALTER TABLE table RENAME COLUMN oldname TO newname.
Fix table rename feature so that it also updates references to the renamed table in triggers and vie...
Why unsigned integer is not available in PostgreSQL?
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edited Jun 20 at 9:12
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answered Aug 5 '15 at 12:58
Karl TarbeKarl Tarbe...
FTP/SFTP access to an Amazon S3 Bucket [closed]
...ess policy).
The role must have a trust relationship to transfer.amazonaws.com.
For details, see my guide Setting up an SFTP access to Amazon S3.
Mounting Bucket to Linux Server
Just mount the bucket using s3fs file system (or similar) to a Linux server (e.g. Amazon EC2) and use the server's ...