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Difference between 'struct' and 'typedef struct' in C++?
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If you just said:
struct Foo { ... };
Foo x;
you would get a compiler error, because Foo is only defined in the tag namespace.
You'd have to declare it as:
struct Foo x;
Any time you want to refer to a Foo, you'd always have to call it a struct Foo. This gets annoying fast, so you can add...
Dynamically set local variable [duplicate]
How do you dynamically set local variable in Python (where the variable name is dynamic)?
7 Answers
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Returning an array using C
... use pointers for arrays when you return them. Being a new programmer, I really do not understand this at all, even with the many forums I have looked through.
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How to implement __iter__(self) for a container object (Python)
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I normally would use a generator function. Each time you use a yield statement, it will add an item to the sequence.
The following will create an iterator that yields five, and then every item in some_list.
def __iter__(self):
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How exactly does __attribute__((constructor)) work?
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It runs when a shared library is loaded, typically during program startup.
That's how all GCC attributes are; presumably to distinguish them from function calls.
GCC-specific syntax.
Yes, this works in C and C++.
No, the function does not need to be static.
The destructo...
How to find if a given key exists in a C++ std::map
...it conversion to prevent the possibility of introducing subtle programming errors.
– DavidRR
Dec 17 '16 at 15:38
what ...
Notepad++ htmltidy - unable to find libtidy.dll
...Forge page (http://tidy.sourceforge.net/) dated 2006; but it returns a DNS error.
Google did return a hit on a site called "DLL Me," but I'm not going to download anything from a site that sketchy; so as of this writing: no libtidy.dll to be found.
--edit--
Finally found a link directly out of the...
How can I get the current language in Django?
...t: Returns None if translations are temporarily deactivated (by deactivate_all() or when None is passed to override()). Before Django 1.8, get_language() always returned LANGUAGE_CODE when translations were deactivated.
– Pieter
Jan 3 '17 at 13:11
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Applying .gitignore to committed files
...wered Sep 23 '11 at 11:05
Matt BallMatt Ball
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PHP: How to handle
...s a string. (in this example, the casting is superfluous, as echo automatically does it anyway)
$content = simplexml_load_string(
'<content><![CDATA[Hello, world!]]></content>'
);
echo (string) $content;
// or with parent element:
$foo = simplexml_load_string(
'<foo&g...