Change to Symbol

Author: jishnub

src/symmetric.jl

@@ -238,31 +238,31 @@ nonhermitianwrappertype(::Hermitian{<:Real}) = Symmetric
 nonhermitianwrappertype(::Hermitian) = identity
 
 """
-    LinearAlgebra.uplo(S::Union{Symmetric, Hermitian})::Char
+    LinearAlgebra.uplo(S::Union{Symmetric, Hermitian})::Symbol
 
-Return a `Char` corresponding to the stored triangular half in the matrix `S`,
+Return a `Symbol` corresponding to the stored triangular half in the matrix `S`,
 that is, the elements are common between `S` and `parent(S)` for that triangular half.
 
 # Example
 ```jldoctest
-julia> S = Symmetric([1 2; 3 4])
+julia> S = Symmetric([1 2; 3 4], :U)
 2×2 Symmetric{Int64, Matrix{Int64}}:
  1  2
  2  4
 
 julia> LinearAlgebra.uplo(S)
-'U': ASCII/Unicode U+0055 (category Lu: Letter, uppercase)
+:U
 
 julia> H = Hermitian([1 2; 3 4], :L)
 2×2 Hermitian{Int64, Matrix{Int64}}:
  1  3
  3  4
 
 julia> LinearAlgebra.uplo(H)
-'L': ASCII/Unicode U+004C (category Lu: Letter, uppercase)
+:L
 ```
 """
-uplo(S::HermOrSym) = S.uplo
+uplo(S::HermOrSym) = sym_uplo(S.uplo)
 
 size(A::HermOrSym) = size(A.data)
 axes(A::HermOrSym) = axes(A.data)