all
builtins.all
Primop
Docs pulled from | This Revision | 24 minutes ago
Nixpkgs manual
Returns true if function pred returns true for all elements of
list.
Inputs
pred-
Predicate
list-
Input list
Type
all :: (a -> Bool) -> [a] -> Bool
Examples
lib.lists.all usage example
all (x: x < 3) [ 1 2 ]
=> true
all (x: x < 3) [ 1 2 3 ]
=> false
Nix manual
Takes 2 arguments
pred, list
Return true if the function pred returns true for all elements
of list, and false otherwise.
Short-circuits and does not evaluate elements that appear later in the list if pred evaluates to false.
Noogle detected
Implementation
This function is implemented in c++ and is part of the native nix runtime.
static void prim_all(EvalState & state, const PosIdx pos, Value ** args, Value & v)
{
anyOrAll(false, state, pos, args, v);
}