--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dmd/expression/Neg.d	Sat Oct 24 08:42:06 2009 +0400
@@ -0,0 +1,33 @@
+module dmd.expression.Neg;
+
+import dmd.Type;
+import dmd.Loc;
+import dmd.RealExp;
+import dmd.Expression;
+import dmd.ComplexExp;
+import dmd.IntegerExp;
+import dmd.Complex;
+
+Expression Neg(Type type, Expression e1)
+{   
+	Expression e;
+    Loc loc = e1.loc;
+
+    if (e1.type.isreal())
+    {
+		e = new RealExp(loc, -e1.toReal(), type);
+    }
+    else if (e1.type.isimaginary())
+    {
+		e = new RealExp(loc, -e1.toImaginary(), type);
+    }
+    else if (e1.type.iscomplex())
+    {
+		Complex!(real) c = e1.toComplex();
+		e = new ComplexExp(loc, Complex!(real)(-c.re, -c.im), type);
+    }
+    else
+		e = new IntegerExp(loc, -e1.toInteger(), type);
+
+    return e;
+}
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