use isempty

Author: kshyatt

src/host/linalg.jl

@@ -14,7 +14,7 @@ function LinearAlgebra.transpose!(B::AbstractGPUMatrix, A::AbstractGPUVector)
 end
 function LinearAlgebra.adjoint!(B::AbstractGPUVector, A::AbstractGPUMatrix)
     axes(B,1) == axes(A,2) && axes(A,1) == 1:1 || throw(DimensionMismatch("adjoint"))
-    length(A) == 0 && return B
+    isempty(A) && return B
     @kernel function adjoint_kernel!(B, A)
         idx = @index(Global, Linear)
         @inbounds B[idx] = adjoint(A[1, idx])
@@ -24,7 +24,7 @@ function LinearAlgebra.adjoint!(B::AbstractGPUVector, A::AbstractGPUMatrix)
 end
 function LinearAlgebra.adjoint!(B::AbstractGPUMatrix, A::AbstractGPUVector)
     axes(B,2) == axes(A,1) && axes(B,1) == 1:1 || throw(DimensionMismatch("adjoint"))
-    length(A) == 0 && return B
+    isempty(A) && return B
     @kernel function adjoint_kernel!(B, A)
         idx = @index(Global, Linear)
         @inbounds B[1, idx] = adjoint(A[idx])
@@ -38,7 +38,7 @@ LinearAlgebra.adjoint!(B::AnyGPUArray, A::AnyGPUArray) = transpose_f!(adjoint, B
 function transpose_f!(f, B::AnyGPUMatrix{T}, A::AnyGPUMatrix{T}) where T
     axes(B,1) == axes(A,2) && axes(B,2) == axes(A,1) || throw(DimensionMismatch(string(f)))
     # array with size zero dimension
-    length(A) == 0 && return B
+    isempty(A) && return B
     @kernel function transpose_kernel!(B, A)
         idx = @index(Global, Cartesian)
         @inbounds B[idx[2], idx[1]] = f(A[idx[1], idx[2]])