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Can I pass an array as arguments to a method with variable arguments in Java?
...rgument to method x(X...) doesn't exactly match the vararg parameter type. Cast to X[] to confirm the non-varargs invocation, or pass individual arguments of type X for a varargs invocation.
– Luke Hutchison
Apr 21 at 22:06
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Load RSA public key from file
...ion when I tried with files I generated with ssh-keygen -t rsa -b 2048 command. With files generated with the commands in the solution it worked.
– Kristóf Dombi
Aug 10 '15 at 18:36
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Use of 'const' for function parameters
...o allows the compiler to make certain performance decisions.
*: Unless it casts away the const-ness, but that's another post.
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Create Generic method constraining T to an Enum
...ty else str
Enum.GetValues(typedefof<'T>)
|> Seq.cast<_>
|> Seq.tryFind(fun v -> String.Compare(v.ToString(), str.Trim(), true) = 0)
|> function Some x -> x | None -> defaultValue
This one is easier to maintain since it's a well-known l...
Calling Objective-C method from C++ member function?
...ompile everything as Objective-C++ do you get warnings about using C-style casts and/or other C++-specific warnings about valid C-style code?
– dreamlax
Jun 30 '09 at 3:47
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Abstract class in Java
...
If we wish to access a member specific to a particular subclass, we must cast down to that subclass first:
// Say ImplementingClass also contains uniqueMethod()
// To access it, we use a cast to tell the runtime which type the object is
AbstractClass b = new ImplementingClass();
((ImplementingCla...
What are some uses of template template parameters?
...ALUE> class interface {
void do_something(VALUE v) {
static_cast<DERIVED*>(this)->do_something(v);
}
};
template <typename VALUE> class derived : public interface<derived, VALUE> {
void do_something(VALUE v) { ... }
};
typedef interface<derived<int...
How can I add to List
...
You can't (without unsafe casts). You can only read from them.
The problem is that you don't know what exactly the list is a list of. It could be a list of any subclass of Number, so when you try to put an element into it, you don't know that the ele...
How do I safely pass objects, especially STL objects, to and from a DLL?
...iginal_type get() const
{
original_type result;
result = static_cast<original_type>(*data);
return result;
}
void set_from(const original_type& value)
{
data = reinterpret_cast<safe_type*>(pod_helpers::pod_malloc(sizeof(safe_type))); //note the pod_malloc c...
How do I modify fields inside the new PostgreSQL JSON datatype?
...nb manipulation functionality within PostgreSQL itself (but none for json; casts are required to manipulate json values).
Merging 2 (or more) JSON objects (or concatenating arrays):
SELECT jsonb '{"a":1}' || jsonb '{"b":2}', -- will yield jsonb '{"a":1,"b":2}'
jsonb '["a",1]' || jsonb '["b",2...