Do not try to set the number of threads on 32-bit systems

Author: OlivierHnt

src/IntervalArithmetic.jl

@@ -40,10 +40,12 @@ include("symbols.jl")
 import LinearAlgebra
 import OpenBLASConsistentFPCSR_jll # 32-bit systems are not supported
 
-# use the same number of threads as the default BLAS library
-ccall((:openblas_set_num_threads64_, OpenBLASConsistentFPCSR_jll.libopenblas),
-    Cint, (Cint,),
-    LinearAlgebra.BLAS.get_num_threads())
+if Int != Int32
+    # use the same number of threads as the default BLAS library
+    ccall((:openblas_set_num_threads64_, OpenBLASConsistentFPCSR_jll.libopenblas),
+        Cint, (Cint,),
+        LinearAlgebra.BLAS.get_num_threads())
+end
 
 include("matmul.jl")
 

src/matmul.jl

@@ -457,7 +457,7 @@ function __mul(A::AbstractMatrix{Interval{T}}, B::AbstractVecOrMat{Interval{T}})
     rC = _call_gem_openblas_upward!(cache_3, U, V)
     rC .= _add_round.(_sub_round.(rC, μ, RoundUp), 2 .* γ, RoundUp)
 
-    return @show mC, rC
+    return mC, rC
 end
 
 function _vec_or_mat_midradius(A::AbstractVecOrMat{Interval{T}}) where {T<:AbstractFloat}