Limit factorize to >= v1.8

JuliaLinearAlgebra · Jan 2, 2023 · 10176ab · 10176ab
1 parent 65608c1
commit 10176ab
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diff --git a/src/strang.jl b/src/strang.jl
@@ -72,6 +72,7 @@ SparseArrays: spdiagm
    U = spdiagm(0 => (2:n+1) ./ (1:n), 1 => -ones(n-1))
 =#
 
+if VERSION >= v"1.8"
 #=
 Strang is a special case of SymTridiagonal,
 and the default factorization of that class is LDLt
@@ -87,3 +88,4 @@ function LinearAlgebra.factorize(A::Strang)
     S = SymTridiagonal(dv, ev)
     return LDLt(S)
 end
+end
diff --git a/test/strang.jl b/test/strang.jl
@@ -30,7 +30,12 @@ using Test: @test, @testset, @test_throws, @inferred
     @test issymmetric(A)
     @test ishermitian(A)
     @test isposdef(A)
+end
+
+
+if VERSION >= v"1.8"
 
+@testset "strang-factor" begin
     # factorize:
     n = 5
     A = Strang(5)
@@ -43,3 +48,5 @@ using Test: @test, @testset, @test_throws, @inferred
     @test F.L ≈ G.L
     @test F.D ≈ G.D
 end
+
+end