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C++ unordered_map using a custom class type as the key
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To be able to use std::unordered_map (or one of the other unordered associative containers) with a user-defined key-type, you need to define two things:
A hash function; this must be a class that overrides operator() and calculates the hash value given an object o...
Why use bzero over memset?
... and reduces portability. I doubt you would see any real gains from using one over the other.
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How to resize superview to fit all subviews with autolayout?
...ntentView and grab the height.
Further considerations exist if you have one or more UILabel's in your view that are multiline. For these it is imperitive that the preferredMaxLayoutWidth property be set correctly such that the label provides a correct intrinsicContentSize, which will be used in ...
Managing Sessions in Node.js? [closed]
...: http://geddyjs.org/
If you want to do more complex WebApps, Geddy is the one you choose. Is like Rails for Ruby.
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What is the difference between mocking and spying when using Mockito?
...ss of a Type, not from an actual instance. The mock simply creates a bare-bones shell instance of the Class, entirely instrumented to track interactions with it. On the other hand, the spy will wrap an existing instance. It will still behave in the same way as the normal instance – the only differ...
How dangerous is it to access an array out of bounds?
... literal meaning of this is:
behavior, upon use of a nonportable or erroneous program construct or
of erroneous data, for which this International Standard imposes no
requirements
A non-normative note expands on this:
Possible undefined behavior ranges from ignoring the situation
co...
Python (and Python C API): __new__ versus __init__
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There are probably other uses for __new__ but there's one really obvious one: You can't subclass an immutable type without using __new__. So for example, say you wanted to create a subclass of tuple that can contain only integral values between 0 and size.
class ModularTuple(tu...
Creating a config file in PHP
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One simple but elegant way is to create a config.php file (or whatever you call it) that just returns an array:
<?php
return array(
'host' => 'localhost',
'username' => 'root',
);
And then:
$configs = in...
Tests not running in Test Explorer
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this one fixed my issues (switching from mixed platforms to anycpu)
– Marcel Studer
Aug 2 '19 at 6:37
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Get selected value/text from Select on change
I need to get the value of the selected option in javascript: does anyone know how to get the selected value or text, please tell how to write a function for it. I have assigned onchange() function to select so what do i do after that?
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