From c40e1bc1ce4f43fed87508374679f82ed237d79d Mon Sep 17 00:00:00 2001
From: Chris Robinson <chris.kcat@gmail.com>
Date: Wed, 14 Dec 2022 17:39:47 -0800
Subject: Better handle span sources from iterators

---
 common/alcomplex.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'common/alcomplex.h')

diff --git a/common/alcomplex.h b/common/alcomplex.h
index a5126f39..794c3526 100644
--- a/common/alcomplex.h
+++ b/common/alcomplex.h
@@ -13,7 +13,7 @@
  */
 template<typename Real>
 std::enable_if_t<std::is_floating_point<Real>::value>
-complex_fft(const al::span<std::complex<Real>> buffer, const Real sign);
+complex_fft(const al::span<std::complex<Real>> buffer, const al::type_identity_t<Real> sign);
 
 /**
  * Calculate the frequency-domain response of the time-domain signal in the
@@ -22,7 +22,7 @@ complex_fft(const al::span<std::complex<Real>> buffer, const Real sign);
 template<typename Real, size_t N>
 std::enable_if_t<std::is_floating_point<Real>::value>
 forward_fft(const al::span<std::complex<Real>,N> buffer)
-{ complex_fft(buffer.subspan(0), Real{-1}); }
+{ complex_fft(buffer.subspan(0), -1); }
 
 /**
  * Calculate the time-domain signal of the frequency-domain response in the
@@ -31,7 +31,7 @@ forward_fft(const al::span<std::complex<Real>,N> buffer)
 template<typename Real, size_t N>
 std::enable_if_t<std::is_floating_point<Real>::value>
 inverse_fft(const al::span<std::complex<Real>,N> buffer)
-{ complex_fft(buffer.subspan(0), Real{1}); }
+{ complex_fft(buffer.subspan(0), 1); }
 
 /**
  * Calculate the complex helical sequence (discrete-time analytical signal) of
-- 
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