From 012754f27f197973e16230d80508aeec81e3cf62 Mon Sep 17 00:00:00 2001
From: Tim Holy <tim.holy@gmail.com>
Date: Thu, 4 Mar 2021 04:37:22 -0600
Subject: [PATCH] Fix SpecialFunctions depwarns

xref https://github.com/JuliaGraphics/ColorVectorSpace.jl/issues/106#issuecomment-790484474
---
 Project.toml            |  4 ++--
 src/ColorVectorSpace.jl | 12 ++++++++----
 test/runtests.jl        |  1 +
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/Project.toml b/Project.toml
index f118cbe..3bddbc7 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "ColorVectorSpace"
 uuid = "c3611d14-8923-5661-9e6a-0046d554d3a4"
-version = "0.9.1"
+version = "0.9.2"
 
 [deps]
 ColorTypes = "3da002f7-5984-5a60-b8a6-cbb66c0b333f"
@@ -13,7 +13,7 @@ TensorCore = "62fd8b95-f654-4bbd-a8a5-9c27f68ccd50"
 [compat]
 ColorTypes = "0.10"
 FixedPointNumbers = "0.8"
-SpecialFunctions = "0.7, 0.8, 0.9, 0.10, 1"
+SpecialFunctions = "0.9, 0.10, 1"
 TensorCore = "0.1"
 julia = "1"
 
diff --git a/src/ColorVectorSpace.jl b/src/ColorVectorSpace.jl
index 92a5e93..a42c02a 100644
--- a/src/ColorVectorSpace.jl
+++ b/src/ColorVectorSpace.jl
@@ -23,7 +23,7 @@ import Base:      conj, sin, cos, tan, sinh, cosh, tanh,
                   exp2, exp10, expm1, cbrt, sqrt,
                   significand, frexp, modf
 import LinearAlgebra: norm, ⋅, dot, promote_leaf_eltypes  # norm1, norm2, normInf
-import SpecialFunctions: gamma, lgamma, lfact
+import SpecialFunctions: gamma, logabsgamma, lfact
 using Statistics
 import Statistics: middle, _mean_promote
 
@@ -213,17 +213,21 @@ const unaryOps = (:~, :conj, :abs,
                   :asind, :atand, :rad2deg, :deg2rad,
                   :log, :log2, :log10, :log1p, :exponent, :exp,
                   :exp2, :exp10, :expm1, :cbrt, :sqrt,
-                  :significand, :lgamma,
+                  :significand,
                   :gamma, :lfact, :frexp, :modf,
                   :(SpecialFunctions.erf), :(SpecialFunctions.erfc),
                   :(SpecialFunctions.erfcx), :(SpecialFunctions.erfi), :(SpecialFunctions.dawson),
-                  :(SpecialFunctions.airy), :(SpecialFunctions.airyai),
-                  :(SpecialFunctions.airyprime), :(SpecialFunctions.airyaiprime), :(SpecialFunctions.airybi), :(SpecialFunctions.airybiprime),
+                  :(SpecialFunctions.airyai),
+                  :(SpecialFunctions.airyaiprime), :(SpecialFunctions.airybi), :(SpecialFunctions.airybiprime),
                   :(SpecialFunctions.besselj0), :(SpecialFunctions.besselj1), :(SpecialFunctions.bessely0), :(SpecialFunctions.bessely1),
                   :(SpecialFunctions.eta), :(SpecialFunctions.zeta), :(SpecialFunctions.digamma))
 for op in unaryOps
     @eval ($op)(c::AbstractGray) = Gray($op(gray(c)))
 end
+function logabsgamma(c::AbstractGray)
+    lagc, s = logabsgamma(gray(c))
+    return Gray(lagc), s
+end
 
 middle(c::AbstractGray) = arith_colorant_type(c)(middle(gray(c)))
 middle(x::C, y::C) where {C<:AbstractGray} = arith_colorant_type(C)(middle(gray(x), gray(y)))
diff --git a/test/runtests.jl b/test/runtests.jl
index 3eb1d02..1120e63 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -226,6 +226,7 @@ ColorTypes.blue(c::RatRGB)  = c.b
             end
         end
         @test ntested > 130
+        @test logabsgamma(Gray(0.2)) == (Gray(logabsgamma(0.2)[1]), 1)
         for g in (Gray{N0f8}(0.4), Gray{N0f8}(0.6))
             for op in (:trunc, :floor, :round, :ceil)
                 v = @eval $op(Bool, gray($g))