Merge pull request #90 from AayushSabharwal/as/lgamma

fix: fix fallback for `lgamma`

Author: ChrisRackauckas

src/NaNMath.jl

@@ -11,9 +11,7 @@ for f in (:sin, :cos, :tan, :asin, :acos, :acosh, :atanh,
             x === xf && throw(MethodError($f, (x,)))
             ($f)(xf)
         end
-        if $f !== :lgamma
-            ($f)(x) = (Base.$f)(x)
-        end
+        $(f !== :lgamma ? :(($f)(x) = (Base.$f)(x)) : :())
     end
 end
 

test/runtests.jl

@@ -223,6 +223,7 @@ for f in (:sin, :cos, :tan, :asin, :acos, :acosh, :atanh, :log, :log2, :log10,
           :log1p, :sqrt)
     @test @eval (NaNMath.$f)(x) == $f(x)
 end
+@test_throws MethodError NaNMath.lgamma(x)
 
 struct A end
 Base.isless(::A, ::A) = false