From 0aa29682d0e079e4e92b6b9eb75413ab30522237 Mon Sep 17 00:00:00 2001
From: John Shin <shinhs0506@gmail.com>
Date: Mon, 7 Aug 2023 00:09:14 -0700
Subject: [PATCH] seq: display -0

---
 src/uu/seq/src/extendedbigint.rs | 12 ++----------
 src/uu/seq/src/seq.rs            |  9 +++------
 2 files changed, 5 insertions(+), 16 deletions(-)

diff --git a/src/uu/seq/src/extendedbigint.rs b/src/uu/seq/src/extendedbigint.rs
index bbe64300a..46153bb7d 100644
--- a/src/uu/seq/src/extendedbigint.rs
+++ b/src/uu/seq/src/extendedbigint.rs
@@ -65,11 +65,7 @@ impl Display for ExtendedBigInt {
             Self::BigInt(n) => n.fmt(f),
             Self::Infinity => f32::INFINITY.fmt(f),
             Self::MinusInfinity => f32::NEG_INFINITY.fmt(f),
-            Self::MinusZero => {
-                // FIXME Come up with a way of formatting this with a
-                // "-" prefix.
-                0.fmt(f)
-            }
+            Self::MinusZero => "-0".fmt(f),
             Self::Nan => "nan".fmt(f),
         }
     }
@@ -206,13 +202,9 @@ mod tests {
     #[test]
     fn test_display() {
         assert_eq!(format!("{}", ExtendedBigInt::BigInt(BigInt::zero())), "0");
+        assert_eq!(format!("{}", ExtendedBigInt::MinusZero), "-0");
         assert_eq!(format!("{}", ExtendedBigInt::Infinity), "inf");
         assert_eq!(format!("{}", ExtendedBigInt::MinusInfinity), "-inf");
         assert_eq!(format!("{}", ExtendedBigInt::Nan), "nan");
-        // FIXME Come up with a way of displaying negative zero as
-        // "-0". Currently it displays as just "0".
-        //
-        //     assert_eq!(format!("{}", ExtendedBigInt::MinusZero), "-0");
-        //
     }
 }
diff --git a/src/uu/seq/src/seq.rs b/src/uu/seq/src/seq.rs
index 2e55efa4a..de883fe8a 100644
--- a/src/uu/seq/src/seq.rs
+++ b/src/uu/seq/src/seq.rs
@@ -223,16 +223,13 @@ fn write_value_int(
     value: &ExtendedBigInt,
     width: usize,
     pad: bool,
-    is_first_iteration: bool,
 ) -> std::io::Result<()> {
     let value_as_str = if pad {
-        if *value == ExtendedBigInt::MinusZero && is_first_iteration {
-            format!("-{value:>0width$}", width = width - 1)
+        if *value == ExtendedBigInt::MinusZero {
+            format!("{value:0<width$}")
         } else {
             format!("{value:>0width$}")
         }
-    } else if *value == ExtendedBigInt::MinusZero && is_first_iteration {
-        format!("-{value}")
     } else {
         format!("{value}")
     };
@@ -347,7 +344,7 @@ fn print_seq_integers(
                     exit(1);
                 }
             }
-            None => write_value_int(&mut stdout, &value, padding, pad, is_first_iteration)?,
+            None => write_value_int(&mut stdout, &value, padding, pad)?,
         }
         // TODO Implement augmenting addition.
         value = value + increment.clone();