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Complete size checks in BLAS.[sy/he]mm! #45605

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Jul 7, 2022
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Complete size checks in BLAS.[sy/he]mm! #45605

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Complete size checks in `BLAS.[sy/he]mm!`
dkarrasch Jun 7, 2022
e8e4497
take side into account
dkarrasch Jun 8, 2022
581a2b7
split size checks in left- and right-multiplication
dkarrasch Jun 9, 2022
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6 changes: 6 additions & 0 deletions stdlib/LinearAlgebra/src/blas.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -1545,6 +1545,9 @@ for (mfname, elty) in ((:dsymm_,:Float64),
if size(B,2) != n
throw(DimensionMismatch(lazy"B has second dimension $(size(B,2)) but needs to match second dimension of C, $n"))
end
if j != size(B,1)
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throw(DimensionMismatch(lazy"A has second dimension $j but needs to match first dimension of B, $(size(B,1))"))
end
chkstride1(A)
chkstride1(B)
chkstride1(C)
Expand Down Expand Up @@ -1619,6 +1622,9 @@ for (mfname, elty) in ((:zhemm_,:ComplexF64),
if size(B,2) != n
throw(DimensionMismatch(lazy"B has second dimension $(size(B,2)) but needs to match second dimension of C, $n"))
end
if j != size(B,1)
throw(DimensionMismatch(lazy"A has second dimension $j but needs to match first dimension of B, $(size(B,1))"))
end
chkstride1(A)
chkstride1(B)
chkstride1(C)
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2 changes: 2 additions & 0 deletions stdlib/LinearAlgebra/test/blas.jl
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Expand Up @@ -222,11 +222,13 @@ Random.seed!(100)
@test_throws DimensionMismatch BLAS.symm('R','U',Cmn,Cnn)
@test_throws DimensionMismatch BLAS.symm!('L','U',one(elty),Asymm,Cnn,one(elty),Cmn)
@test_throws DimensionMismatch BLAS.symm!('L','U',one(elty),Asymm,Cnn,one(elty),Cnm)
@test_throws DimensionMismatch BLAS.symm!('L','U',one(elty),Asymm,Cmn,one(elty),Cnn)
if elty <: BlasComplex
@test_throws DimensionMismatch BLAS.hemm('L','U',Cnm,Cnn)
@test_throws DimensionMismatch BLAS.hemm('R','U',Cmn,Cnn)
@test_throws DimensionMismatch BLAS.hemm!('L','U',one(elty),Aherm,Cnn,one(elty),Cmn)
@test_throws DimensionMismatch BLAS.hemm!('L','U',one(elty),Aherm,Cnn,one(elty),Cnm)
@test_throws DimensionMismatch BLAS.hemm!('L','U',one(elty),Aherm,Cmn,one(elty),Cnn)
end
end
end
Expand Down