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What would be C++ limitations compared C language? [closed]
..._t) );
To make it compile as C++ you have to write:
foo_t* foo = static_cast<foo_t*>( malloc ( sizeof(foo_t) ) );
which isn't valid C any more. (you could use the C-style cast, it which case it would compile in C, but be shunned by most C++ coding standards, and also by many C programmers...
C# vs Java generics [duplicate]
...ompiled classes are not actually generic. They compile down to Object and casts. In effect Java generics are a compile time artifact and can easily be subverted at runtime.
C# on the other hand, by virtue of the CLR, implement generics all they way down to the byte code. The CLR took several b...
php stdClass to array
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@hakre It doesn't seem like it's NULL after casting it as an array. I think OP means that it's NULL after using json_decode($array) which makes sense per the manual. NULL is returned if the json cannot be decoded
– h2ooooooo
Sep 2...
Android Studio - Ambiguous method call getClass()
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Have a look at the Error report
The only workaround to this issue is to cast the instance you call getClass() on, to Object as follows:
((Object) this).getClass()
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What does void mean in C, C++, and C#?
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Not disagreeing, but an additional use of void is in the "cast to void" trick to suppress warnings for unused values. It's a bit of a stretch since it doesn't really correspond with how the compiler interprets things, but you can interpret that to mean "I'm using this value to do no...
converting double to integer in java
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is there a possibility that casting a double created via Math.round() will still result in a truncated down number
No, round() will always round your double to the correct value, and then, it will be cast to an long which will truncate any decimal plac...
convert an enum to another type of enum
...), value.ToString());
If you mean by numeric value, you can usually just cast:
Enum2 value2 = (Enum2)value;
(with the cast, you might want to use Enum.IsDefined to check for valid values, though)
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PHP - Move a file into a different folder on the server
...ink function in PHP but have since been told that this can be quite risky and a security issue. (Previous code below:)
8 A...
How to list all installed packages and their versions in Python?
Is there a way in Python to list all installed packages and their versions?
11 Answers
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How do I convert an object to an array?
...Single-dimensional arrays
For converting single-dimension arrays, you can cast using (array) or there's get_object_vars, which Benoit mentioned in
his answer.
// Cast to an array
$array = (array) $object;
// get_object_vars
$array = get_object_vars($object);
They work slightly different fro...