In C #, can casting Char in Int32 cause a negative value?

Question

Or is it always guaranteed to be positive for all possible characters?

Answer 1

It is guaranteed to be non-negative.

char is a 16-bit unsigned value.

From section 4.1.5 of the C # 4 specification:

The type charis unsigned 16-bit integers with values ​​from 0 to 65535. The set of possible values ​​for the type charcorresponds to the Unicode character set. Although it charhas the same idea as ushort, not all operations allowed for one type are allowed on another.

Answer 2

char U + 0000 U + ffff, Int32 .

Answer 3

16- 0x0000 0xFFFF Char.

Char Structure - MSDN

Answer 4

See Microsoft documentation

Here you can see that Char is a 16-bit value in the range from U + 0000 to U + ffff. If you pass it Int32, there should not be a negative value.

Answer 5

charcan be implicitly converted to ushortand ushortrange 0 to 65,535, therefore its always positive