Add a unit test program

1 files changed, 2 insertions, 2 deletions

diff --git a/crystal.c b/crystal.c
index 065236a..cd6ef8a 100644
--- a/crystal.c
+++ b/crystal.c
@@ -65,7 +65,7 @@ static double volume(Cell cell)
 }
 
 
-static double dspacing(Cell cell, double h, double k, double l)
+double dspacing(Cell cell, double h, double k, double l)
 {
 	double sum_S_terms, one_over_Vsq, one_over_LHS;
 
@@ -80,7 +80,7 @@ static double dspacing(Cell cell, double h, double k, double l)
 }
 
 
-static double plane_angle(Cell cell, double h1, double k1, double l1,
+double plane_angle(Cell cell, double h1, double k1, double l1,
 				   double h2, double k2, double l2)
 {
 	double sum_S_terms, d1, d2, dd_over_Vsq;