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Are Java static initializers thread safe?
...he same fully-qualified name, but represent different types that cannot be cast to one another.
– Erwin Bolwidt
Jan 8 '16 at 8:51
1
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How can I capture the result of var_dump to a string?
... sometimes it doesn't provide enough information. For instance, since it casts to string where it can, both false and null show as an empty string. In cases where I care about the difference between these, I would begrudgingly resort to var_dump or var_export.
– JMTyler
...
How to define custom configuration variables in rails
...swer:
For a quick solution, watching the "YAML Configuration File" screen cast by Ryan Bates should be very helpful.
In summary:
# config/initializers/load_config.rb
APP_CONFIG = YAML.load_file("#{Rails.root}/config/config.yml")[Rails.env]
# application.rb
if APP_CONFIG['perform_authentication']...
How does delete[] know it's an array?
...
try size_t size = *(reinterpret_cast<size_t *>(pArray) - 1) instead
– user6377043
Aug 12 '17 at 11:42
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How to do an instanceof check with Scala(Test)
...r needs. I would recommend it in those cases because it gives you the typecasting for free and leaves less room for error.
Example:
OuterType foo = blah
foo match {
case subFoo : SubType => {
subFoo.thingSubTypeDoes // no need to cast, use match variable
}
case subFoo => {
// ...
What good technology podcasts are out there?
Yes, Podcasts, those nice little Audiobooks I can listen to on the way to work. With the current amount of Podcasts, it's like searching a needle in a haystack, except that the haystack happens to be the Internet and is filled with too many of these "Hot new Gadgets" stuff :(
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How to check if Location Services are enabled?
...
Excellent ! But even better, get rid of casting and directly pass LocationManager.class in getSystemService method because call requires API 23 ;-)
– Mackovich
Jun 6 '19 at 8:52
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How to dynamically create a class?
...c base class or interface that your dynamic class inherits from and can be casted to. In that case you can modify GetTypeBuilder() method and change moduleBuilder.DefineType call to include the static type as the last parameter (is null now)
– danijels
Oct 5 '1...
g++ undefined reference to typeinfo
...Such access can happen when you create an object of the class, use dynamic_cast etc.
[source]
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Meaning of 'const' last in a function declaration of a class?
... that is often broken and easily broken.
foobar& fbNonConst = const_cast<foobar&>(fb1);
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