Name Rascal/Libraries/Prelude/Set/reducer

Synopsis Apply a function to successive elements of a set and combine the results (deprecated).

Function &T reducer(set[&T] st, &T (&T,&T) fn, &T unit)

Usage import Set;

Description Apply the function fn to successive elements of set s starting with unit.

Examples

rascal>import Set;
ok
rascal>int add(int x, int y) { return x + y; }
int (int, int): int add(int, int);
rascal>reducer({10, 20, 30, 40}, add, 0); 
int: 100

Pitfalls This function is deprecated, use a Reducer instead.

[Edit] | [New Subconcept] | [Recompile Course] | [Warnings]