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-rw-r--r--unsupported/Eigen/MPRealSupport5
1 files changed, 4 insertions, 1 deletions
diff --git a/unsupported/Eigen/MPRealSupport b/unsupported/Eigen/MPRealSupport
index 35d77e5bd..0584e470e 100644
--- a/unsupported/Eigen/MPRealSupport
+++ b/unsupported/Eigen/MPRealSupport
@@ -157,9 +157,12 @@ int main()
void operator()(mpreal* res, Index resStride, const mpreal* blockA, const mpreal* blockB, Index rows, Index depth, Index cols, mpreal alpha,
Index strideA=-1, Index strideB=-1, Index offsetA=0, Index offsetB=0)
{
+ if(rows==0 || cols==0 || depth==0)
+ return;
+
mpreal acc1(0,mpfr_get_prec(blockA[0].mpfr_srcptr())),
tmp (0,mpfr_get_prec(blockA[0].mpfr_srcptr()));
-
+
if(strideA==-1) strideA = depth;
if(strideB==-1) strideB = depth;