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Category:Elena: Difference between revisions
→Conditional branching
Line 205:
(m == 0)
! [ m / n ].
It is possible to use *if* template code :
if (m == 0)
[ n := n + 1. ];
[ n := m + n. ].
In this case the compiler always use optimized code for branching
Boolean symbols supports basic logical operations (AND, OR, XOR and NOT), so several conditions can be checked
if (aChar >= 48) and:(aChar < 58)
theToken += aChar.
];
Exception new:"Invalid expression" raise.
]
Note that in this case both condition will be evaluated even if the first one is false If we want to use short-circuit evaluation expression brackets should be used
if ((x >= 0)and:[ array@x != 0]
[
...
Line 225 ⟶ 233:
^ aBulls =>
-1
4
consoleEx writeLine:"Congratulations! You have won!".
^ false.
];
! [
theAttempt += 1.
| |||