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Android Center text on canvas
...
And probably best casting _text.Length to a float as it obviously won't work for odd text lengths.
– paj7777
Apr 8 '13 at 9:44
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How to get the number of Characters in a String?
...en adds in the comments:
Actually you can do len() over runes by just type casting.
len([]rune("世界")) will print 2. At leats in Go 1.3.
And with CL 108985 (May 2018, for Go 1.11), len([]rune(string)) is now optimized. (Fixes issue 24923)
The compiler detects len([]rune(string)) pattern automati...
.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
...t it is not created. Additionally, using the zero-length object results in casting(s) within the toArray() - method.
See the source of ArrayList.toArray():
public <T> T[] toArray(T[] a) {
if (a.length < size)
// Make a new array of a's runtime type, but my contents:
re...
Providing a default value for an Optional in Swift?
... {
return defaultValue
}
}
}
however the need to cast value as T is an ugly hack. Ideally, there should be a way to assert that T is the same as the type contained in the Optional. As it stands, type inferencing sets T based on the parameter given to getOrElse, and then fai...
How do I pass a unique_ptr argument to a constructor or a function?
...eter by value. std::move doesn't actually move anything; it's just a fancy cast. std::move(nextBase) returns a Base&& that is an r-value reference to nextBase. That's all it does.
Because Base::Base(std::unique_ptr<Base> n) takes its argument by value rather than by r-value reference,...
How can I order a List?
...in a List<string>, you can either change its declared type, or use a cast. If you're not sure, you can test the type:
if (typeof(List<string>).IsAssignableFrom(ListaServizi.GetType()))
((List<string>)ListaServizi).Sort();
else
{
//... some other solution; there are a few ...
How to truncate string using SQL server
...
You can also use the Cast() operation :
Declare @name varchar(100);
set @name='....';
Select Cast(@name as varchar(10)) as new_name
share
|
i...
Python hashable dicts
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@smido: Thanks. I also found that you can just cast a literal, i.e. hashabledict({key_a: val_a, key_b: val_b, ...}).
– HelloGoodbye
Oct 9 '18 at 7:35
...
Generic TryParse
...nverter(typeof(T));
if(converter != null)
{
// Cast ConvertFromString(string text) : object to (T)
return (T)converter.ConvertFromString(input);
}
return default(T);
}
catch (NotSupportedException)
{
return default(T);
}...
What is an existential type?
...ely become opaque; perhaps the only thing you can still do with it is type-cast it to Object.
Summary:
===========================================================
| universally existentially
| quantified type quantified type
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