Types float, double, int are the ones i use the most in c++ An example of the options where f is a float and n is a doubl. 2 your problem is not the lack of dynamic casting Casting integer to double isn't possible at all You seem to want to give java an object of one type, a field of a possibly incompatible type, and have it somehow automatically figure out how to convert between the types. Static cast is also used to cast pointers to related types, for example casting void* to the appropriate type
Direct casting vs 'as' operator Asked 17 years ago modified 6 years, 4 months ago viewed 238k times How do i cast an int to an enum in c++ Enum test { a, b } How do i convert a to type test::a? 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 places
Here are the docs from math.round(double) Returns the closest long to. For example, casting using 4294967295us as u32 works and the rust 0.12 reference docs on type casting say a numeric value can be cast to any numeric type A raw pointer value can be cast to or from any integral type or raw pointer type Any other cast is unsupported and will fail to compile. Casting can be used to clearly state that you are calling a child method and not a parent method
So in this case it's always a downcast or more correctly, a narrowing conversion. In absence of op's clarification, this question could be interpreted in the sense of converting any string to a number, i.e Turning dog into a number (which of course can be done).
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