Handle error estimate for maximum properly.

1 files changed, 5 insertions, 0 deletions

diff --git a/ratio.c b/ratio.c
index 384f944..243426d 100644
--- a/ratio.c
+++ b/ratio.c
@@ -86,6 +86,11 @@ rational difference(rational r1, rational r2){
 
 bool is_greater(rational r1, rational r2){ return !(difference(r1,r2).s); }
 
+rational maximum(rational r1, rational r2){
+	if(is_greater(r1,r2)) return r1;
+	else return r2;
+}
+
 rational product(rational r1, rational r2){
 	rational r;
 	rational s1 = {r1.s, r1.n, r2.d};