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Implement builtins.floor and builtins.ceil using the C library functions internally

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Closes #4782

Note: even though the type is internally called `NixFloat`, it's
actually a `double`.
This commit is contained in:
Maximilian Bosch 2021-05-10 11:47:00 +02:00
parent db6ab75cae
commit 7f7f99f350
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1
tests/lang/eval-okay-floor-ceil.exp Normal file
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@ -0,0 +1 @@
"23;24;23;23"

9
tests/lang/eval-okay-floor-ceil.nix Normal file
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with import ./lib.nix;
let
n1 = builtins.floor 23.5;
n2 = builtins.ceil 23.5;
n3 = builtins.floor 23;
n4 = builtins.ceil 23;
in
builtins.concatStringsSep ";" (map toString [ n1 n2 n3 n4 ])