diff options
Diffstat (limited to 'users/sterni/nix/int/default.nix')
| -rw-r--r-- | users/sterni/nix/int/default.nix | 28 |
1 files changed, 4 insertions, 24 deletions
diff --git a/users/sterni/nix/int/default.nix b/users/sterni/nix/int/default.nix index a39a9477e211..e1d7e1fe7e4f 100644 --- a/users/sterni/nix/int/default.nix +++ b/users/sterni/nix/int/default.nix @@ -2,31 +2,22 @@ let - # TODO(sterni): implement nix.float and figure out which of these - # functions can be split out into a common nix.num - # library. - inherit (depot.users.sterni.nix) string + num ; inherit (builtins) bitOr bitAnd bitXor - mul - div - add - sub ; - abs = i: if i < 0 then -i else i; - exp = base: pow: if pow > 0 then base * (exp base (pow - 1)) else if pow < 0 - then 1.0 / exp base (abs pow) + then 1.0 / exp base (num.abs pow) else 1; bitShiftR = bit: count: @@ -52,7 +43,7 @@ let in if int == 0 then "0" - else "${sign}${go (abs int)}"; + else "${sign}${go (num.abs int)}"; fromHexMap = builtins.listToAttrs (lib.imap0 (i: c: { name = c; value = i; }) @@ -94,26 +85,17 @@ let odd = x: bitAnd x 1 == 1; even = x: bitAnd x 1 == 0; - # div and mod behave like quot and rem in Haskell, - # i. e. they truncate towards 0 + inherit (builtins) div; mod = a: b: let res = a / b; in a - (res * b); - inRange = a: b: x: x >= a && x <= b; - - sum = builtins.foldl' (a: b: a + b) 0; - in { inherit maxBound minBound - abs exp odd even - add - sub - mul div mod bitShiftR @@ -123,7 +105,5 @@ in bitXor toHex fromHex - inRange - sum ; } |