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[Electric Sheep]

Can anybody tell me why the output is different when they look similar...

Code: Select all

a.i = 20
b.i = 30
Debug a  - (a > b) ; output is -10
Debug 20 - (20>30) ; output is 20

[srod]

PB does not support this use of the logical operators.

[luis]

You can maybe approximate what you wanted with this hack:

Code: Select all

Macro BOOL (exp)
; a = 15
; Debug (a = 15)      ; prints 15
; Debug BOOL(a = 15)  ; prints 1 (#True)

 (1 And (exp))
EndMacro


a.i = 20
b.i = 30
Debug a  - BOOL(a < b) ; 19
Debug a  - BOOL(a > b) ; 20
Debug 20 - BOOL(20 < 30) ; 19
Debug 20 - BOOL(20 > 30) ; 20

See also: http://www.purebasic.fr/english/viewtop ... 31#p303631

[Electric Sheep]

Thanks luis.

This seems to fix it...

Code: Select all

a.i = 20
b.i = 30
Debug a  - (a > b And 1) ; output is 20
Debug 20 - (20>30 And 1) ; output is 20