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Covariance and contravariance real world example
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How can this be marked the answer when it doesnt answer the question and doesnt give any example of using co /contra variance in c#?
– barakcaf
Jun 28 '16 at 12:02
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How to fix: “UnicodeDecodeError: 'ascii' codec can't decode byte”
...brief, Unicode strings are an entirely separate type of Python string that does not contain any encoding. They only hold Unicode point codes and therefore can hold any Unicode point from across the entire spectrum. Strings contain encoded text, beit UTF-8, UTF-16, ISO-8895-1, GBK, Big5 etc. Strings ...
What is difference between functional and imperative programming languages?
...s designed to accomplish a specific task given its arguments. The function does not rely on any external state.
Easier reiterative development. Because the code is easier to refactor, changes to design are often easier to implement. For example, suppose you write a complicated transformation, and t...
C pointers : pointing to an array of fixed size
...u handle const property with this technique. A const char (*p)[N] argument does not seem compatible with a pointer to char table[N]; By contrast, a simple char* ptr remain compatible with a const char* argument.
– Cyan
Oct 3 '15 at 3:11
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The case against checked exceptions
...that they have to deal with the case that the file they are trying to open doesn't exist.
Let me rephrase that: Every client programmer using this API should know that they have to deal with this case.
And there's the rub: can the API programmer help them know they should deal with it through comm...
What is the purpose of the EBP frame pointer register?
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The compiler probably knows what it does to ESP. The other points are valid, though, +1
– erikkallen
Feb 24 '09 at 21:52
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How to correctly implement custom iterators and const_iterators?
...is, but, hey, random_access_iterator is not in the standard and the answer does not handle the mutable to const conversion. You probably want to inherit from, e.g. std::iterator<random_access_iterator_tag, value_type, ... optional arguments ...> though.
– Yakov Galka
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Angular directives - when and how to use compile, controller, pre-link and post-link [closed]
...pre-link and last is post-link.
For nested directives
Note: The following does not apply to directives that render their children in their link function. Quite a few Angular directives do so (like ngIf, ngRepeat, or any directive with transclude). These directives will natively have their link func...
INNER JOIN ON vs WHERE clause
...semantics of ON and WHERE mean that for JOINs after the last OUTER JOIN it doesn't matter which you use. Although you characterize ON as part of the JOIN, it is also a filtering after a Cartesian product. Both ON and WHERE filter a Cartesian product. But either ON or a subselect with WHERE must be ...
How do I create a nice-looking DMG for Mac OS X using command-line tools?
... for the AppleScript to work. You may have to reboot after this change (it doesn't work otherwise on Mac OS X Server 10.4).
Create a R/W DMG. It must be larger than the result will be. In this example, the bash variable "size" contains the size in Kb and the contents of the folder in the "source" ba...