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-rw-r--r--hwpfilter/source/cspline.cxx4
1 files changed, 2 insertions, 2 deletions
diff --git a/hwpfilter/source/cspline.cxx b/hwpfilter/source/cspline.cxx
index 80e80820e2a6..32041163e00b 100644
--- a/hwpfilter/source/cspline.cxx
+++ b/hwpfilter/source/cspline.cxx
@@ -53,7 +53,7 @@
#include "cspline.h"
#include "solver.h"
-void NaturalSpline (int N, double* x, double* a, double*& b, double*& c,
+void NaturalSpline (int N, const double* x, const double* a, double*& b, double*& c,
double*& d)
{
const double oneThird = 1.0/3.0;
@@ -111,7 +111,7 @@ void NaturalSpline (int N, double* x, double* a, double*& b, double*& c,
}
}
-void PeriodicSpline (int N, double* x, double* a, double*& b, double*& c,
+void PeriodicSpline (int N, const double* x, const double* a, double*& b, double*& c,
double*& d)
{
std::unique_ptr<double[]> h(new double[N]);