Add lib.mod: integer modulus

NixOS · Aug 30, 2017 · 97a4088 · 97a4088
1 parent 9fd315a
commit 97a4088
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/lib/trivial.nix b/lib/trivial.nix
@@ -70,6 +70,16 @@ rec {
   min = x: y: if x < y then x else y;
   max = x: y: if x > y then x else y;
 
+  /* Integer modulus
+
+     Example:
+       mod 11 10
+       => 1
+       mod 1 10
+       => 1
+  */
+  mod = base: int: base - (int * (builtins.div base int));
+
   /* Reads a JSON file. */
   importJSON = path:
     builtins.fromJSON (builtins.readFile path);