core/RInt.hh

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Copyright (c) 2000-2015 Ericsson Telecom AB
   3 // All rights reserved. This program and the accompanying materials
   4 // are made available under the terms of the Eclipse Public License v1.0
   5 // which accompanies this distribution, and is available at
   6 // http://www.eclipse.org/legal/epl-v10.html
   7 ///////////////////////////////////////////////////////////////////////////////
   8 #ifndef RInt_HH
   9 #define RInt_HH
  10
  11 struct bignum_st;
  12 typedef bignum_st BIGNUM;
  13
  14 typedef int RInt;
  15
  16 class int_val_t
  17 {
  18 private:
  19   friend class INTEGER;
  20   friend class INTEGER_template;
  21
  22   bool native_flag;
  23   union {
  24     RInt native;
  25     BIGNUM *openssl;
  26   } val;
  27
  28 public:
  29   int_val_t();
  30   int_val_t(const int_val_t& v);
  31   explicit int_val_t(const char *s);
  32   explicit int_val_t(RInt v) : native_flag(true) { val.native = v; }
  33   explicit int_val_t(BIGNUM *v) : native_flag(false) { val.openssl = v; }
  34   ~int_val_t();
  35   /** Returns a newly allocated string. Caller must call Free() */
  36   char *as_string() const;
  37   const RInt& get_val() const;
  38   BIGNUM *get_val_openssl() const;
  39   double to_real() const;
  40   int_val_t operator&(RInt right) const;
  41   bool operator==(const int_val_t& right) const;
  42   bool operator<(const int_val_t& right) const;
  43
  44   inline bool operator!=(const int_val_t& right) const { return !(*this == right); }
  45   inline bool operator>(const int_val_t& right) const { return *this != right && !(*this < right); }
  46   inline bool operator>=(const int_val_t& right) const { return *this == right || *this > right; }
  47   inline bool operator<=(const int_val_t& right) const { return *this == right || *this < right; }
  48   inline bool operator==(RInt right) const { return *this == int_val_t(right); }
  49   inline bool operator!=(RInt right) const { return !(*this == right); }
  50   inline bool operator>(RInt right) const { return *this != right && !(*this < right); }
  51   inline bool operator<(RInt right) const { return *this != right && *this < int_val_t(right); }
  52   inline bool operator<=(RInt right) const { return *this == right || *this < right; }
  53   inline bool operator>=(RInt right) const { return *this == right || *this > right; }
  54
  55   int_val_t& operator=(const int_val_t& right);
  56   int_val_t& operator=(RInt right);
  57   int_val_t& operator+=(RInt right);
  58   int_val_t& operator<<=(RInt right);
  59   int_val_t& operator>>=(RInt right);
  60   inline bool is_native() const { return native_flag; }
  61   bool is_negative() const;
  62 };
  63
  64 BIGNUM *to_openssl(RInt other_value);
  65 RInt string2RInt(const char *s);
  66
  67 #endif  // RInt_HH