From 0ee4e84678765760059dd1708439404709e70296 Mon Sep 17 00:00:00 2001
From: Thomas White <taw@physics.org>
Date: Thu, 8 Aug 2019 14:21:41 +0200
Subject: Add rtnl_mtx_is_identity() and rtnl_mtx_is_perm()

---
 libcrystfel/src/rational.h | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'libcrystfel/src/rational.h')

diff --git a/libcrystfel/src/rational.h b/libcrystfel/src/rational.h
index e67c603a..8681bb06 100644
--- a/libcrystfel/src/rational.h
+++ b/libcrystfel/src/rational.h
@@ -100,6 +100,8 @@ extern void transform_fractional_coords_rtnl_inverse(const RationalMatrix *P,
                                                      Rational *ans);
 extern void rtnl_mtx_print(const RationalMatrix *m);
 extern Rational rtnl_mtx_det(const RationalMatrix *m);
+extern int rtnl_mtx_is_identity(const RationalMatrix *m);
+extern int rtnl_mtx_is_perm(const RationalMatrix *m);
 
 #ifdef __cplusplus
 }
-- 
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