Who needs operator precedence, anyway?
Bert Freudenberg
bert at impara.de
Tue Dec 21 18:38:55 UTC 2004
Puzzle of the day: Why do these conditionals work as intended even
without parentheses?
{true. false} do: [:a |
0 to: 1 do: [:b |
a = true & b = 0 ifTrue: [Transcript cr; show: 'case 1'].
a = true & b = 1 ifTrue: [Transcript cr; show: 'case 2'].
a = false & b = 0 ifTrue: [Transcript cr; show: 'case 3'].
a = false & b = 1 ifTrue: [Transcript cr; show: 'case 4'].
]
]
Hint: (scroll down after trying to figure it out yourself)
Hint: Look up the implementation of &
- Bert -
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