Quaternary uncurrying.

robrix · Apr 3, 2015 · 6d70211 · 6d70211
1 parent 90f24e5
commit 6d70211
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/Prelude/Curry.swift b/Prelude/Curry.swift
@@ -29,3 +29,8 @@ public func uncurry<T, U, V>(f: T -> U -> V) -> (T, U) -> V {
 public func uncurry<T, U, V, W>(f: T -> U -> V -> W) -> (T, U, V) -> W {
  return { f($0)($1)($2) }
 }
+
+/// Uncurries a curried quaternary function `f`, producing a function which can be applied to a tuple.
+public func uncurry<T, U, V, W, X>(f: T -> U -> V -> W -> X) -> (T, U, V, W) -> X {
+ return { f($0)($1)($2)($3) }
+}