SecuritySNACCRuntime/c++-lib/inc/asn-real.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 // file: .../c++-lib/inc/asn-real.h - ASN.1 REAL type
  20 //
  21 //  Mike Sample
  22 //  92/07/02
  23 // Copyright (C) 1992 Michael Sample and the University of British Columbia
  24 //
  25 // This library is free software; you can redistribute it and/or
  26 // modify it provided that this copyright/license information is retained
  27 // in original form.
  28 //
  29 // If you modify this file, you must clearly indicate your changes.
  30 //
  31 // This source code is distributed in the hope that it will be
  32 // useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  33 // of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  34 //
  35 // $Header: /cvs/Darwin/Security/SecuritySNACCRuntime/c++-lib/inc/asn-real.h,v 1.2 2001/06/21 21:57:00 dmitch Exp $
  36 // $Log: asn-real.h,v $
  37 // Revision 1.2  2001/06/21 21:57:00  dmitch
  38 // Avoid global const PLUS_INFINITY, MINUS_INFINITY
  39 //
  40 // Revision 1.1.1.1  2001/05/18 23:14:06  mb
  41 // Move from private repository to open source repository
  42 //
  43 // Revision 1.3  2001/05/05 00:59:18  rmurphy
  44 // Adding darwin license headers
  45 //
  46 // Revision 1.2  2000/06/15 18:48:24  dmitch
  47 // Snacc-generated source files, now part of CVS tree to allow for cross-platform build of snaccRuntime.
  48 //
  49 // Revision 1.1.1.1  2000/03/09 01:00:05  rmurphy
  50 // Base Fortissimo Tree
  51 //
  52 // Revision 1.2  1999/03/21 02:07:33  mb
  53 // Added Copy to every AsnType.
  54 //
  55 // Revision 1.1  1999/02/25 05:21:45  mb
  56 // Added snacc c++ library
  57 //
  58 // Revision 1.5  1997/02/16 20:25:42  rj
  59 // check-in of a few cosmetic changes
  60 //
  61 // Revision 1.4  1995/07/24  17:53:59  rj
  62 // #if TCL ... #endif wrapped into #if META ... #endif
  63 //
  64 // changed `_' to `-' in file names.
  65 //
  66 // Revision 1.3  1994/10/08  04:18:09  rj
  67 // code for meta structures added (provides information about the generated code itself).
  68 //
  69 // code for Tcl interface added (makes use of the above mentioned meta code).
  70 //
  71 // virtual inline functions (the destructor, the Clone() function, BEnc(), BDec() and Print()) moved from inc/*.h to src/*.C because g++ turns every one of them into a static non-inline function in every file where the .h file gets included.
  72 //
  73 // made Print() const (and some other, mainly comparison functions).
  74 //
  75 // several `unsigned long int' turned into `size_t'.
  76 //
  77 // Revision 1.2  1994/08/28  10:00:55  rj
  78 // comment leader fixed.
  79 //
  80 // Revision 1.1  1994/08/28  09:20:41  rj
  81 // first check-in. for a list of changes to the snacc-1.1 distribution please refer to the ChangeLog.
  82
  83 #ifndef _asn_real_h_
  84 #define _asn_real_h_
  85
  86 class AsnReal: public AsnType
  87 {
  88 protected:
  89   double                        value;
  90
  91 public:
  92                                 AsnReal():
  93                                   value (0.0)
  94                                 {}
  95                                 AsnReal (double val):
  96                                   value (val)
  97                                 {}
  98
  99   virtual AsnType       *Clone() const;
 100   virtual AsnType       *Copy() const;
 101
 102                                 operator double() const                 { return value; }
 103   AsnReal                       &operator = (double newvalue)           { value = newvalue; return *this; }
 104
 105   AsnLen                        BEncContent (BUF_TYPE b);
 106   void                          BDecContent (BUF_TYPE b, AsnTag tagId, AsnLen elmtLen, AsnLen &bytesDecoded, ENV_TYPE env);
 107   AsnLen                        BEnc (BUF_TYPE b);
 108   void                          BDec (BUF_TYPE b, AsnLen &bytesDecoded, ENV_TYPE env);
 109
 110   void                          Print (ostream &os) const;
 111
 112   PDU_MEMBER_MACROS
 113
 114 #if META
 115   static const AsnRealTypeDesc  _desc;
 116
 117   const AsnTypeDesc             *_getdesc() const;
 118
 119 #if TCL
 120   int                           TclGetVal (Tcl_Interp *) const;
 121   int                           TclSetVal (Tcl_Interp *, const char *val);
 122 #endif /* TCL */
 123 #endif /* META */
 124 };
 125
 126 extern double AsnPlusInfinity();
 127 extern double AsnMinusInfinity();
 128
 129 #define PLUS_INFINITY   AsnReal(AsnPlusInfinity())
 130 #define MINUS_INFINITY  AsnReal(AsnMinusInfinity())
 131
 132 #endif /* conditional include */