Logarithm test program, base=3 not working

1 files changed, 87 insertions, 0 deletions

diff --git a/test/logo.adb b/test/logo.adb
new file mode 100644
index 0000000..3c2412f
--- /dev/null
+++ b/test/logo.adb
@@ -0,0 +1,87 @@
+
+
+--  Programmed by Jedidiah Barber
+--  Licensed under the Sunset License v1.0
+
+--  See license.txt for further details
+
+
+with
+
+    Ada.Text_IO,
+    Kompsos.Math,
+    Kompsos.Pretty_Print;
+
+
+procedure Logo is
+
+    package TIO renames Ada.Text_IO;
+
+
+    package InKomp is new Kompsos (Integer);
+    use InKomp;
+
+    package Math is new InKomp.Math (0, 1);
+
+    package Printer is new InKomp.Pretty_Print (Integer'Image);
+
+
+    function B
+           (Item : in Natural)
+        return Term
+    renames Math.Build;
+
+    function P
+           (Item : in Integer)
+        return String
+    renames Printer.Image;
+
+    function PV
+           (Item : in Term)
+        return String is
+    begin
+        return P (Math.Value (Item));
+    exception
+    when others =>
+        return Printer.Image (Item);
+    end PV;
+
+
+    procedure Test
+           (Power, Base : in Natural)
+    is
+        Relation : Goal := Empty_Goal;
+        Exponent  : constant Term := Relation.Fresh;
+        Remainder : constant Term := Relation.Fresh;
+        Result : State;
+    begin
+        Math.Logarithm (Relation, B (Power) & B (Base) & Exponent & Remainder);
+        Result := Relation.Run;
+        TIO.Put_Line ("log_" & P (Base) & " (" & P (Power) & ") = " &
+            PV (Exponent.Resolve (Result)) & " r " & PV (Remainder.Resolve (Result)));
+    end Test;
+
+begin
+
+    TIO.Put_Line ("Logarithm");
+    Test (1, 1);
+    Test (68, 2);
+    Test (68, 3);
+    Test (68, 4);
+    Test (68, 5);
+    Test (68, 6);
+    Test (68, 7);
+    Test (68, 8);
+
+    TIO.New_Line;
+
+    TIO.Put_Line ("Expected Failure");
+    --  Here there is no reasonable way to assign a value to the exponent variable term
+    Test (68, 1);  --  1^x is always 1 so will never be 68
+    --  In this case the log function is undefined for x=0
+    Test (68, 0);  --  0^x is always 0 or undefined so could never be 68
+    Test (0, 0);
+
+end Logo;
+
+