Imported Upstream version 1.8.2upstream/1.8.2

1 files changed, 61 insertions, 0 deletions

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+/******************************************************************************
+ *
+ * $Id: cppvalue.h,v 1.7 2001/03/19 19:27:40 root Exp $
+ *
+ *
+ * Copyright (C) 1997-2012 by Dimitri van Heesch.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation under the terms of the GNU General Public License is hereby 
+ * granted. No representations are made about the suitability of this software 
+ * for any purpose. It is provided "as is" without express or implied warranty.
+ * See the GNU General Public License for more details.
+ *
+ * Documents produced by Doxygen are derivative works derived from the
+ * input used in their production; they are not affected by this license.
+ *
+ */
+
+#ifndef _CPPVALUE_H
+#define _CPPVALUE_H
+
+#include <stdio.h>
+#include <qglobal.h> 
+
+/** A class representing a C-preprocessor value. */
+class CPPValue
+{
+  public:
+    enum Type { Int, Float };
+  
+    CPPValue(long val=0) : type(Int) { v.l = val; }
+    CPPValue(double val) : type(Float) { v.d = val; }
+
+    operator double () const { return type==Int ? (double)v.l : v.d; }
+    operator long ()   const { return type==Int ? v.l : (long)v.d;   }
+
+    bool isInt() const { return type == Int; }
+     
+    void print() const
+    {
+      if (type==Int) 
+        printf("(%ld)\n",v.l);
+      else
+        printf("(%f)\n",v.d);
+    }
+
+  private:
+    Type type;
+    union {
+      double d;
+      long l;
+    } v;
+};
+
+extern CPPValue parseOctal();
+extern CPPValue parseDecimal();
+extern CPPValue parseHexadecimal();
+extern CPPValue parseCharacter();
+extern CPPValue parseFloat();
+
+#endif