From dedb6289dd79e264dc20cf672432715e6d7df460 Mon Sep 17 00:00:00 2001
From: Daniel Hofstetter <daniel.hofstetter@42dh.com>
Date: Mon, 24 Oct 2022 15:13:02 +0200
Subject: [PATCH] numfmt: handle negative zero values

---
 src/uu/numfmt/src/format.rs  | 6 +++++-
 tests/by-util/test_numfmt.rs | 5 +++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/uu/numfmt/src/format.rs b/src/uu/numfmt/src/format.rs
index 3550f3bc2..5e61ce794 100644
--- a/src/uu/numfmt/src/format.rs
+++ b/src/uu/numfmt/src/format.rs
@@ -161,7 +161,11 @@ fn transform_from(s: &str, opts: &TransformOptions) -> Result<f64> {
     remove_suffix(i, suffix, &opts.from).map(|n| {
         // GNU numfmt doesn't round values if no --from argument is provided by the user
         if opts.from == Unit::None {
-            n
+            if n == -0.0 {
+                0.0
+            } else {
+                n
+            }
         } else if n < 0.0 {
             -n.abs().ceil()
         } else {
diff --git a/tests/by-util/test_numfmt.rs b/tests/by-util/test_numfmt.rs
index b12ea2d50..72a9e39a9 100644
--- a/tests/by-util/test_numfmt.rs
+++ b/tests/by-util/test_numfmt.rs
@@ -184,6 +184,11 @@ fn test_negative() {
         .stdout_is("-1.0Ki\n-1.2Mi\n-103Mi\n");
 }
 
+#[test]
+fn test_negative_zero() {
+    new_ucmd!().pipe_in("-0\n-0.0").run().stdout_is("0\n0.0\n");
+}
+
 #[test]
 fn test_no_op() {
     new_ucmd!()