eval: constify some pointers

1 files changed, 2 insertions, 2 deletions

diff --git a/eval.c b/eval.c
index 205019a..6b5d835 100644
--- a/eval.c
+++ b/eval.c
@@ -57,8 +57,8 @@ typedef struct MaximalSlicingEval {
     double *krt;
 } MaximalSlicingEval;
 
-static double scalarproduct_metric_c(size_t len1, size_t len2, double *mat,
-                                     double *vec1, double *vec2)
+static double scalarproduct_metric_c(size_t len1, size_t len2, const double *mat,
+                                     const double *vec1, const double *vec2)
 {
     double val = 0.0;
     for (int m = 0; m < len2; m++) {