From 404c87b06afbeebfea6c839665918c7bd1328d74 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Mon, 14 Jan 2019 18:11:17 -0500
Subject: [PATCH] fix incorrect parameter names for std.math.atan2

---
 std/math/atan2.zig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/std/math/atan2.zig b/std/math/atan2.zig
index b3e45ba045..a7757132d7 100644
--- a/std/math/atan2.zig
+++ b/std/math/atan2.zig
@@ -22,10 +22,10 @@ const std = @import("../index.zig");
 const math = std.math;
 const assert = std.debug.assert;
 
-pub fn atan2(comptime T: type, x: T, y: T) T {
+pub fn atan2(comptime T: type, y: T, x: T) T {
     return switch (T) {
-        f32 => atan2_32(x, y),
-        f64 => atan2_64(x, y),
+        f32 => atan2_32(y, x),
+        f64 => atan2_64(y, x),
         else => @compileError("atan2 not implemented for " ++ @typeName(T)),
     };
 }