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Updated some functions, renamed some stuff, added from_to IN STDLIB #627

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zxq9 merged 5 commits from github/fork/radrow/stdlib-extensions into master 2019-09-02 16:56:57 +09:00
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1 changed files with 3 additions and 5 deletions
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priv/stdlib/List.aes
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@ -38,16 +38,14 @@ namespace List =
h::t => find_indices_(p, t, n+1, if(p(h)) n::acc else acc)
function nth(n : int, l : list('a)) : option('a) =
if(n < 0) None
else switch(l)
switch(l)
[] => None
h::t => if(n == 0) Some(h) else nth(n-1, t)
/* Unsafe version of `nth` */
function get(n : int, l : list('a)) : 'a =
if(n < 0) abort("Negative index get")
else switch(l)
[] => abort("Out of index get")
switch(l)
[] => abort(if(n < 0) "Negative index get" else "Out of index get")
h::t => if(n == 0) h else get(n-1, t)