Why parse(UInt8 and parse(Int8 get diffrent type?

General Usage
1

Julia 0.7
Why parse(UInt8 and parse(Int8 get diffrent type ?

julia> parse(UInt8,"255")
0xff

julia> parse(Int8,"127")
127

Paul

2

parse(UInt8, "255") gives you a UInt8 while parse(Int8, "127") gives you an Int8. The first argument is to say what type you want to parse into.

3

Yes, but why two diffrent types of reasult : hex and dec ?

0xff

127
4

You mean why they print differently? Unsigned integers print like that.

This was dicussed in e.g. Change printing of Unsigned types to decimal base · Issue #30167 · JuliaLang/julia · GitHub.

2 Likes
5

In both samples like below I am expecting just 127 . Why are diffrent ?

julia> parse(Int8,"127")
127

julia> parse(UInt8,"127")
0x7f

Paul

6

In the original post, you gave two different values to convert from, 127 and 255.

7

You mean why they print differently? Unsigned integers print like that (in hexadecimal). It is the same number.

julia> parse(UInt8,"127")
0x7f

julia> Int(ans)
127