Bug? x + y mod x ? [SOLVED]

[ilan]

hi

i dont know if it is a bug but it seems to me to be one.

if i use before the MOD function a calculation without () i get a different result then if i would use ()

like this code here:

    For i = 0 To 7
        Dim num As Int = i + 2 Mod 7
        Log(num)
    Next

Waiting for debugger to connect...
Program started.
2
3
4
5
6
7
8
9

but this is correct:

    For i = 0 To 7
        Dim num As Int = (i + 2) Mod 7
        Log(num)
    Next

Waiting for debugger to connect...
Program started.
2
3
4
5
6
0
1
2

hmmm...

what i understand is that MOD comes before +/- so the calculation looks now like this: i + (2 mod 7) but it doesnot make sense when we use mod in coding. or am i wrong?

 

[ilan]

according to this explanation https://en.wikipedia.org/wiki/Modular_arithmetic
modular calculation is always inside ()

so: 2 + 4 mod 2 = 2 + 4 (mod 2)

if this is true then the mod function in b4x is incorrect.

 

[alwaysbusy]

I think it is correct. Mod is at the same level as * and / and they precede the + and -

​

Operators	Precedence
( )	first (highest)
not, ^, **	second
and, mod, div, *, /	third
or, xor, +, -	fourth
=, <>, >, <, >=, <=	fifth (lowest)