lib: fix conversion of hex char to int and add test

[nit.git] / lib / standard / kernel.nit

diff --git a/lib/standard/kernel.nit b/lib/standard/kernel.nit
index 3cf33ba..bdfd05c 100644 (file)
--- a/lib/standard/kernel.nit
+++ b/lib/standard/kernel.nit
@@ -35,11 +35,15 @@ interface Object
        # Unless specific code, you should not use this method.
        fun is_same_type(other: Object): Bool is intern
 
+       # Return true if `self` and `other` are the same instance.
+       # Unless specific code, you should use `==` instead.
+       fun is_same_instance(other: nullable Object): Bool is intern
+
        # Have `self` and `other` the same value?
        ##
        # The exact meaning of "same value" is let to the subclasses.
-       # Implicitly, the default implementation, is `is`
-       fun ==(other: nullable Object): Bool do return self is other
+       # Implicitly, the default implementation, is `is_same_instance`
+       fun ==(other: nullable Object): Bool do return self.is_same_instance(other)
 
        # Have `self` and `other` different values?
        ##
@@ -400,28 +404,6 @@ universal Int
                end
        end
 
-       # Execute 'each' for each integer in [self..last]
-       fun enumerate_to(last: Int)
-               !each(i: Int)
-       do
-               var cur = self
-               while cur <= last do
-                       each(cur)
-                       cur += 1
-               end
-       end
-
-       # Execute 'each' for each integer in [self..after[
-       fun enumerate_before(after: Int)
-               !each(i: Int)
-       do
-               var cur = self
-               while cur < after do
-                       each(cur)
-                       cur += 1
-               end
-       end
-
        # The absolute value of self
        #
        #     assert (-10).abs   == 10
@@ -480,7 +462,7 @@ universal Char
                else if is_digit then
                        return self.ascii - '0'.ascii
                else
-                       return self.to_lower.ascii - ('a'.ascii + 10)
+                       return self.to_lower.ascii - 'a'.ascii + 10
                end
        end