Implement double arithmetic with error bounds.

1 files changed, 2 insertions, 0 deletions

diff --git a/double.c b/double.c
index d31de70..a587a99 100644
--- a/double.c
+++ b/double.c
@@ -4,6 +4,8 @@
 
 double convert_int(int i){ return (double) i; }
 
+double to_exptype(double d){ return d; }
+
 double sum(double d1, double d2){ return d1+d2; }
 
 double difference(double d1, double d2){ return d1-d2; }