From 4c133c06d6ff8fd8bf14f6f9f8208cc69d8da5f3 Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Mon, 28 Aug 2023 02:01:05 -0700
Subject: Slightly improve some all-pass filter coefficients

---
 core/uhjfilter.cpp | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/core/uhjfilter.cpp b/core/uhjfilter.cpp
index df50956a..d56d9b9d 100644
--- a/core/uhjfilter.cpp
+++ b/core/uhjfilter.cpp
@@ -29,23 +29,23 @@ template<>
 struct GetPhaseShifter<UhjLength512> { static auto& Get() noexcept { return PShiftHq; } };
 
 
-constexpr float square(float x) noexcept
-{ return x*x; }
+constexpr float square(double x) noexcept
+{ return static_cast<float>(x*x); }
 
 /* Filter coefficients for the 'base' all-pass IIR, which applies a frequency-
  * dependent phase-shift of N degrees. The output of the filter requires a 1-
  * sample delay.
  */
 constexpr std::array<float,4> Filter1Coeff{{
-    square(0.6923878f), square(0.9360654322959f), square(0.9882295226860f),
-    square(0.9987488452737f)
+    square(0.6923878), square(0.9360654322959), square(0.9882295226860),
+    square(0.9987488452737)
 }};
 /* Filter coefficients for the offset all-pass IIR, which applies a frequency-
  * dependent phase-shift of N+90 degrees.
  */
 constexpr std::array<float,4> Filter2Coeff{{
-    square(0.4021921162426f), square(0.8561710882420f), square(0.9722909545651f),
-    square(0.9952884791278f)
+    square(0.4021921162426), square(0.8561710882420), square(0.9722909545651),
+    square(0.9952884791278)
 }};
 
 } // namespace
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