define rank(::AbstractVector) (#46169)

JuliaLang · Aug 1, 2022 · 0b9eda1 · 0b9eda1
1 parent d44ba87
commit 0b9eda1
Show file tree

Hide file tree

Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/stdlib/LinearAlgebra/src/generic.jl b/stdlib/LinearAlgebra/src/generic.jl
@@ -978,7 +978,7 @@ function rank(A::AbstractMatrix; atol::Real = 0.0, rtol::Real = (min(size(A)...)
     tol = max(atol, rtol*s[1])
     count(x -> x > tol, s)
 end
-rank(x::Number) = iszero(x) ? 0 : 1
+rank(x::Union{Number,AbstractVector}) = iszero(x) ? 0 : 1
 
 """
     tr(M)

diff --git a/stdlib/LinearAlgebra/test/generic.jl b/stdlib/LinearAlgebra/test/generic.jl
@@ -235,6 +235,8 @@ end
     @test norm(NaN, 0) === NaN
 end
 
+@test rank(zeros(4)) == 0
+@test rank(1:10) == 1
 @test rank(fill(0, 0, 0)) == 0
 @test rank([1.0 0.0; 0.0 0.9],0.95) == 1
 @test rank([1.0 0.0; 0.0 0.9],rtol=0.95) == 1