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Why does dividing two int not yield the right value when assigned to double?
...s to prevent data loss).
After the upcast, a will wind up as a double and now you have division between two doubles. This will create the desired division and assignment.
AGAIN, please note that this is language specific (and can even be compiler specific), however almost all languages (certainly...
xUnit.net: Global setup + teardown?
...
As far as I know, xUnit does not have a global initialization/teardown extension point. However, it is easy to create one. Just create a base test class that implements IDisposable and do your initialization in the constructor and your te...
Creating an object: with or without `new` [duplicate]
...stroy it explicitly using the keyword delete;
Creating arrays with a size known only at runtime, since the object creation occurs at runtime. (I won't go into the specifics of allocating dynamic arrays here.)
Neither is preferred; it depends on what you're doing as to which is most appropriate.
U...
What is attr_accessor in Ruby?
... Person.new
person.name = 'Dennis'
person.name # => "Dennis"
Awesome. Now we can write and read instance variable @name using reader and writer methods. Except, this is done so frequently, why waste time writing these methods every time? We can do it easier.
class Person
attr_reader :name
...
ggplot with 2 y axes on each side and different scales
...
I concur with Andreas - sometimes (such as now, for me) a client wants two sets of data on the same plot, and does not want to hear me talk about Plotting Theory. I either have to convince them to not want that anymore (not always a battle I want to wage), or tell th...
What is the purpose of the EBP frame pointer register?
...
Frame pointer is a reference pointer allowing a debugger to know where local variable or an argument is at with a single constant offset. Although ESP's value changes over the course of execution, EBP remains the same making it possible to reach the same variable at the same offset (su...
What would cause an algorithm to have O(log log n) complexity?
... n) times before you've reduced the number down to some constant (say, 2).
Now, let's do some math to make this rigorous. Le'ts rewrite the above sequence in terms of powers of two:
√65,536 = √216 = (216)1/2 = 28 = 256
√256 = √28 = (28)1/2 = 24 = 16
√16 = √24 = (24)1/2 = 22 = 4
√4 = ...
How to call function of one php file from another php file and pass parameters to it?
...tring; //returns the second argument passed into the function
}
?>
Now Using include (http://php.net/include) to include the File1.php to make its content available for use in the second file:
File2.php :
<?php
include 'File1.php';
echo first(1,"omg lol"); //returns omg lol;
?>
...
Why covariance and contravariance do not support value type
...hout any change in representation; the native code itself doesn't need to know what you're doing with the values at all, so long as the infrastructure has guaranteed that it will definitely be valid.
For value types, that doesn't work - to treat an IEnumerable<int> as an IEnumerable<object...
How Drupal works? [closed]
...upal happens because of one of those events being fired. The MenuAPI only knows about what urls/paths are handled by different plugin modules because it fires the 'menu' event (hook_menu) and gathers up all the metadata plugin modules respond with. ("I'll take care of the url 'news/recent', and here...