From ef397250554df8af8bf8fbb9c6277defe8a2de6f Mon Sep 17 00:00:00 2001
From: Boo <32691832+BanchouBoo@users.noreply.github.com>
Date: Mon, 30 Aug 2021 13:39:05 -0400
Subject: [PATCH] Fix float formatting for 0.0 when precision is 0 (#9642)

---
 lib/std/fmt.zig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/lib/std/fmt.zig b/lib/std/fmt.zig
index dff9e893e3..52bc25af00 100644
--- a/lib/std/fmt.zig
+++ b/lib/std/fmt.zig
@@ -1200,8 +1200,6 @@ pub fn formatFloatDecimal(
                 while (i < precision) : (i += 1) {
                     try writer.writeAll("0");
                 }
-            } else {
-                try writer.writeAll(".0");
             }
         }
 
@@ -2198,6 +2196,7 @@ test "float.hexadecimal.precision" {
 test "float.decimal" {
     try expectFmt("f64: 152314000000000000000000000000", "f64: {d}", .{@as(f64, 1.52314e+29)});
     try expectFmt("f32: 0", "f32: {d}", .{@as(f32, 0.0)});
+    try expectFmt("f32: 0", "f32: {d:.0}", .{@as(f32, 0.0)});
     try expectFmt("f32: 1.1", "f32: {d:.1}", .{@as(f32, 1.1234)});
     try expectFmt("f32: 1234.57", "f32: {d:.2}", .{@as(f32, 1234.567)});
     // -11.1234 is converted to f64 -11.12339... internally (errol3() function takes f64).