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September 2017 Update

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Ingy döt Net 2017-09-23 10:01:46 +02:00
parent bba7bfd280
commit ba8067c3b7
14570 changed files with 153136 additions and 63871 deletions
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16
Task/Y-combinator/Elena/y-combinator.elena Normal file
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import extensions.
singleton YCombinator
{
fix : func
= (:f)[(:x)[ x eval:x ] eval(:g)[ f eval(:x)[(g eval:g) eval:x] ]] eval:func.
}
program =
[
var fib := YCombinator fix(:f)((:i)( (i <= 1) ifTrue:[^i] ifFalse:[^f eval(i-1) + f eval(i-2) ] )).
var fact := YCombinator fix(:f)((:i)((i == 0) ifTrue:[^1] ifFalse:[^f eval(i-1) * i] )).
console printLine("fib(10)=",fib eval(10)).
console printLine("fact(10)=",fact eval(10)).
].