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Is it possible to serialize and deserialize a class in C++?
...s to me that boost::serialization requires the caller to keep track of the order in which objects are written and read. Is that correct? So if there is a change in the order in which two fields are written between versions of a program then we have an incompatibility. Is this right?
...
EF Migrations: Rollback last applied migration?
...value. Likewise, if you have applied migrations A, B, C, D, and E (in that order), then the ordinal 1 should refer to A, ordinal 2 should refer to B, and so on. So to rollback to B you could use either:
Update-Database -TargetMigration:"B"
or
Update-Database -TargetMigration:2
Edit October 201...
Node.js throws “btoa is not defined” error
...rs (i.e. if you plan to exchange base64 between Node.js and a browser). In order to make it work you have to mark the input text as 'binary'.
Buffer.from('Hélló wórld!!', 'binary').toString('base64')
This gives you SOlsbPMgd/NybGQhIQ==. If you make atob('SOlsbPMgd/NybGQhIQ==') in a browser it...
Difference between FOR and AFTER triggers?
...t, and fires before and instead of the insert and can be used on views, in order to insert the appropriate values into the underlying tables.
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How to implement classic sorting algorithms in modern C++?
...tialization {} instead of the good old parenthesized initialization () (in order to side-step all most-vexing-parse issues in generic code).
Scott Meyers's "Prefer alias declarations to typedefs". For templates this is a must anyway, and using it everywhere instead of typedef saves time and adds con...
What is an SSTable?
...
"An SSTable provides a persistent,ordered immutable map from keys to values, where both keys and values are arbitrary byte strings. Operations are provided to look up the value associated with a specified key, and to iterate over all key/value pairs in a spec...
What does Provider in JAX-RS mean?
...f them as plugins that (potentially) alter the behavior of the runtime, in order to accomplish a set of (program defined) goals.
Providers are not the same as resources classes, they exist, conceptually, at a level in-between resources classes and the JAX-RS implementation. If it helps, you can thi...
Rotating a two-dimensional array in Python
...breakdown:
[::-1] - makes a shallow copy of the original list in reverse order. Could also use reversed() which would produce a reverse iterator over the list rather than actually copying the list (more memory efficient).
* - makes each sublist in the original list a separate argument to zip() (i....
What is an abstract class in PHP?
...declared abstract.
Note: Traits support the use of abstract methods in order to impose requirements upon the exhibiting class.
Example below :
class Non_Abstract_Class
{
abstract protected function getValue();
public function printOut() {
echo "Hello how are you?";
}
}
$...
Remote origin already exists on 'git push' to a new repository
...
check this answer in order to force the url.
– srodriguex
Jun 5 '14 at 21:32
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