Add a non-trivial number of arithmetic methods to number classes.

1 files changed, 16 insertions, 0 deletions

diff --git a/MLKSingleFloat.m b/MLKSingleFloat.m
index 9c2902f..1d3f957 100644
--- a/MLKSingleFloat.m
+++ b/MLKSingleFloat.m
@@ -126,6 +126,22 @@
     return [MLKSingleFloat singleFloatWithFloat:(value / [(MLKFloat*)arg floatValue])];
 }
 
+-(NSComparisonResult) compare:(MLKSingleFloat *)arg
+{
+  if (self->value == arg->value)
+    return NSOrderedSame;
+  else if (self->value < arg->value)
+    return NSOrderedAscending;
+  else
+    return NSOrderedDescending;
+}
+
+-(BOOL) isEqual:(id)arg
+{
+  return ([arg isKindOfClass:[MLKSingleFloat class]]
+          && self->value == ((MLKSingleFloat *)arg)->value);
+}
+
 -(NSString *) description
 {
   NSString *str = [NSString stringWithFormat:@"%e", value];