src/example_9/.gitignore

@@ -1,15 +0,0 @@
-.dub
-docs.json
-__dummy.html
-docs/
-/example_9
-example_9.so
-example_9.dylib
-example_9.dll
-example_9.a
-example_9.lib
-example_9-test-*
-*.exe
-*.o
-*.obj
-*.lst

src/example_9/dub.json

@@ -1,9 +0,0 @@
-{
-  "authors": [
-    "Alexander"
-  ],
-  "description": "Больше статистики. Наследование.",
-  "license": "proprietary",
-  "name": "example_9",
-  "targetPath": "bin"
-}

src/example_9/source/app.d

@@ -1,26 +0,0 @@
-import std.stdio : writeln, stdin;
-import std.exception : enforce;
-import stat_;
-
-void main(string[] args)
-{
-	Stat[] stats;
-	foreach (arg; args[1 .. $])
-	{
-		auto newStat = cast(Stat) Object.factory("stat_." ~ arg);
-		enforce(newStat, "Invalid statistics function: " ~ arg);
-		stats ~= newStat;
-	}
-	for (double x; stdin.readf(" %s ", &x) == 1;)
-	{
-		foreach (s; stats)
-		{
-			s.accumulate(x);
-		}
-	}
-	foreach (s; stats)
-	{
-		s.postprocess();
-		writeln(s.result());
-	}
-}

src/example_9/source/stat_.d

@@ -1,77 +0,0 @@
-module stat_;
-
-interface Stat
-{
-    void accumulate(double x);
-    void postprocess();
-    double result();
-}
-
-class IncrementalStat : Stat
-{
-    protected double _result;
-    abstract void accumulate(double x);
-    void postprocess()
-    {
-    }
-
-    double result()
-    {
-        return _result;
-    }
-}
-
-class Min : IncrementalStat
-{
-    this()
-    {
-        _result = double.max;
-    }
-
-    override void accumulate(double x)
-    {
-        if (x < _result)
-        {
-            _result = x;
-        }
-    }
-}
-
-class Max : IncrementalStat
-{
-    this()
-    {
-        _result = double.min_normal;
-    }
-
-    override void accumulate(double x)
-    {
-        if (x > _result)
-        {
-            _result = x;
-        }
-    }
-}
-
-class Average : IncrementalStat
-{
-    private uint items = 0;
-    this()
-    {
-        _result = 0;
-    }
-
-    override void accumulate(double x)
-    {
-        _result += x;
-        ++items;
-    }
-
-    override void postprocess()
-    {
-        if (items)
-        {
-            _result /= items;
-        }
-    }
-}