move helper functions

Author: lkdvos

src/common/gauge.jl

@@ -8,6 +8,9 @@ This is achieved by ensuring that the entry with the largest magnitude in `V` or
 is real and positive.
 """ gaugefix!
 
+# Helper functions
+_argmaxabs(x) = reduce(_largest, x; init = zero(eltype(x)))
+_largest(x, y) = abs(x) < abs(y) ? y : x
 
 function gaugefix!(::Union{typeof(eig_full!), typeof(eigh_full!), typeof(gen_eig_full!)}, V::AbstractMatrix)
     for j in axes(V, 2)

src/implementations/svd.jl

@@ -105,10 +105,6 @@ function initialize_output(::typeof(svd_vals!), A::Diagonal, ::DiagonalAlgorithm
     return eltype(A) <: Real ? diagview(A) : similar(A, real(eltype(A)), size(A, 1))
 end
 
-# Helper functions used by gauge.jl
-_argmaxabs(x) = reduce(_largest, x; init = zero(eltype(x)))
-_largest(x, y) = abs(x) < abs(y) ? y : x
-
 # ==========================
 #      IMPLEMENTATIONS
 # ==========================