Commit b636d56d6a71b9ed521de7fccb519b7d0fa3db90 | zig

author	Ali Chraghi <alichraghi@proton.me> 2025-03-25 00:01:01+03:30
committer	Andrew Kelley <andrew@ziglang.org> 2025-03-31 19:07:34-04:00
log	b636d56d6a71b9ed521de7fccb519b7d0fa3db90
tree	31ece6f57f89f293e1c49d80b833f871cec2bd7b
parent	b431e9af9764b118ac8f515b4fede3192474d338

zon: normalize negative zeroes

1 files changed, 16 insertions(+), 8 deletions(-)

lib
- std
  - zon
    stringify.zig

lib/std/zon/stringify.zig+16-8

 @@ -627,10 +627,16 @@ pub fn Serializer(Writer: type) type {
                     return self.writer.writeAll("inf");
                 } else if (std.math.isNegativeInf(val)) {
                     return self.writer.writeAll("-inf");
+                } else if (std.math.isNegativeZero(val)) {
+                    return self.writer.writeAll("-0.0");
+                } else {
+                    try std.fmt.format(self.writer, "{d}", .{val});
+                },
+                .comptime_float => if (val == 0) {
+                    return self.writer.writeAll("0");
                 } else {
                     try std.fmt.format(self.writer, "{d}", .{val});
                 },
-                .comptime_float => try std.fmt.format(self.writer, "{d}", .{val}),
                 else => comptime unreachable,
             }
         }
 @@ -2103,10 +2109,11 @@ test "std.zon stringify primitives" {
         \\    .b = 0.3333333333333333333333333333333333,
         \\    .c = 3.1415926535897932384626433832795028,
         \\    .d = 0,
-        \\    .e = -0,
+        \\    .e = 0,
-        \\    .f = inf,
+        \\    .f = -0.0,
-        \\    .g = -inf,
+        \\    .g = inf,
-        \\    .h = nan,
+        \\    .h = -inf,
+        \\    .i = nan,
         \\}
     ,
         .{
 @@ -2115,9 +2122,10 @@ test "std.zon stringify primitives" {
             .c = std.math.pi,
             .d = 0.0,
             .e = -0.0,
-            .f = std.math.inf(f32),
+            .f = @as(f128, -0.0),
-            .g = -std.math.inf(f32),
+            .g = std.math.inf(f32),
-            .h = std.math.nan(f32),
+            .h = -std.math.inf(f32),
+            .i = std.math.nan(f32),
         },
         .{},
     );